Flanged Plastic Caps

 800.633.6775
 

Flanged Plastic Caps

FC


Polyethylene Plastic Flanged Caps for Standard, Metric, BSP, and NPT Threads
Flanged Plastic Caps

FC–Media

Plastic Thread Protectors Plastic Connector Cap Flanged Plastic Fittings Circular Plastic Connector Cap Flanged Caps for Imperial, Metric, BSP, and NPT Threads Polyethylene Plastic Flanged Caps for Standard, Metric, BSP, and NPT Threads Plastic Flanged Caps for Threaded Applications Flanged Plastic Caps - Threaded Part Protection Flared Plastic Caps Flanged Plastic Caps
  • Material: LDPE (Low Density Polyethylene)
  • Stocked Material: LDPE (Natural), LDPE (Red)
  • Flanged for Easy Removal
  • Designed to Fit a Wide Variety of Imperial, Metric, BSP, and NPT Thread Sizes.
  • Use as Thread Protector or End Cap

Available in the following varieties:

FCS - Flanged Caps for Straight Threads Flanged Plastic Caps for Standard Straight Threads
FCSL - Long Flanged Caps for Straight Threads Long Flanged Caps for Straight Threads
FCM - Flanged Caps for Metric Threads Flanged Plastic Caps for Metric Threads
FCBN - Flanged Caps for BSP and NPT Threads Flanged Plastic Caps for BSP and NPT Threads

Size Chart Flanged Plastic Fittings

FC Size Chart

Table View
List View
Part # Description To Fit STD Thread To Fit METRIC Thread To Fit NPT To Fit BSP Inside Diameter
in
mm
 Large I.D.
in
mm
 Flange OD
in
mm
 Inside Length
in
mm
 Box/Mini/Micro
QTY		 Buy Online
More info
FCM-5 Flanged Plastic Caps - FLANGE CAP FOR 5MM MTRC THRDS M5
0.193
4.9
-
-
0.492
12.5
0.591
15.0
 5000 1000 100
FCM-6 Flared Plastic Caps - FLANGE CAP FOR 6MM MTRC THRDS M6
0.232
5.9
-
-
0.532
13.5
0.787
20.0
 5000 1000 100
FCSL.313 Flanged Plastic Caps - Threaded Part Protection - FLANGE CAP FOR 5/16" STR THRDS 1.240" LONG LDPE 5/16
0.308
7.8
-
-
0.460
11.7
1.240
31.5
 5000 1000 100
FCM-8 Plastic Flanged Caps for Threaded Applications - FLANGE CAP FOR 8MM MTRC THRDS M8
0.309
7.8
-
-
0.610
15.5
0.787
20.0
 5000 1000 100
FCS.313L Polyethylene Plastic Flanged Caps for Standard, Metric, BSP, and NPT Threads - FLANGE CAP FOR 5/16" STR THRDS 0.840" LONG LDPE 5/16
0.310
7.9
-
-
0.510
13.0
0.840
21.3
 10000 2000 200
FCB0125 Flanged Caps for Imperial, Metric, BSP, and NPT Threads - FLANGE CAP FOR 0.125" (1/8") BSP THRDS 1/8
0.344
8.7
0.389
9.9
0.650
16.5
0.380
9.7
 5000 1000 100
FCS.375 Circular Plastic Connector Cap - FLANGE CAP FOR 3/8" STR THRDS 0.470" LONG LDPE 3/8
0.370
9.4
-
-
0.600
15.2
0.470
11.9
 5000 1000 100
FCS.375L Flanged Plastic Fittings - FLANGE CAP FOR 3/8" STR THRDS 0.840" LONG LDPE 3/8
0.370
9.4
-
-
0.600
15.2
0.840
21.3
 7500 1500 150
FCSL.375 Plastic Connector Cap - FLANGE CAP FOR 3/8" STR THRDS 1.240" LONG LDPE 3/8
0.370
9.4
-
-
0.520
13.2
1.240
31.5
 5000 1000 100
FCN0125 Flanged Plastic Caps - FLANGE CAP FOR 0.125" (1/8") NPT THRDS 1/8
0.383
9.7
0.399
10.1
0.660
16.8
0.383
9.7
 5000 1000 100
FCM-10 Flared Plastic Caps - FLANGE CAP FOR 10MM MTRC THRDS M10
0.384
9.8
-
-
0.689
17.5
0.323
8.2
 5000 1000 100
FCS.437 Flanged Plastic Caps - Threaded Part Protection - FLANGE CAP FOR 7/16" STR THRDS 0.470" LONG LDPE 7/16
0.428
10.9
-
-
0.690
17.5
0.470
11.9
 5000 1000 100
FCSL.437 Plastic Flanged Caps for Threaded Applications - FLANGE CAP FOR 7/16" STR THRDS 1.330" LONG LDPE 7/16
0.429
10.9
-
-
0.580
14.7
1.330
33.8
 5000 1000 100
FCM-12 Polyethylene Plastic Flanged Caps for Standard, Metric, BSP, and NPT Threads - FLANGE CAP 12MM MTRC THRDS M12
0.463
11.8
-
-
0.768
19.5
0.470
11.9
 5000 1000 100
FCS.500 Flanged Caps for Imperial, Metric, BSP, and NPT Threads - FLANGE CAP FOR 1/2" STR THRDS 0.470" LONG LDPE 1/2
0.490
12.4
-
-
0.750
19.1
0.470
11.9
 5000 1000 100
FCSL.500 Circular Plastic Connector Cap - FLANGE CAP FOR 1/2" STR THRDS 1.330" LONG LDPE 1/2
0.490
12.4
-
-
0.640
16.3
1.330
33.8
 5000 1000 100
FCBN0250 Flanged Plastic Fittings - FLANGE CAP FOR 0.250" (1/4") BSP-NPT THRDS 1/4 1/4
0.510
12.9
0.533
13.5
0.810
20.6
0.530
13.5
 5000 1000 100
FCM-14 Plastic Connector Cap - FLANGE CAP 14MM MTRC THRDS M14
0.540
13.7
-
-
0.846
21.5
0.470
11.9
 5000 1000 100
FCS.563 Flanged Plastic Caps - FLANGE CAP FOR 9/16" STR THRDS 0.500" LONG LDPE 9/16
0.550
14.0
-
-
0.810
20.6
0.500
12.7
 5000 1000 100
FCSL.563 Flared Plastic Caps - FLANGE CAP FOR 9/16" STR THRDS 1.410" LONG LDPE 9/16
0.552
14.0
-
-
0.700
17.8
1.410
35.8
 5000 1000 100
FCS.625L Flanged Plastic Caps - Threaded Part Protection - FLANGE CAP FOR 5/8" STR THRDS 0.840" LONG LDPE 5/8
0.610
15.5
-
-
0.760
19.3
0.840
21.3
 5000 1000 100
FCB0375 Plastic Flanged Caps for Threaded Applications - FLANGE CAP FOR 0.375" (3/8") BSP THRDS 3/8
0.616
15.6
0.661
16.8
0.930
23.6
0.530
13.5
 5000 1000 100
FCM-16 Polyethylene Plastic Flanged Caps for Standard, Metric, BSP, and NPT Threads - FLANGE CAP 16MM MTRC THRDS M16
0.617
15.7
-
-
0.925
23.5
0.470
11.9
 5000 1000 100
FCN0375 Flanged Caps for Imperial, Metric, BSP, and NPT Threads - FLANGE CAP FOR 0.375" (3/8") NPT THRDS 3/8
0.644
16.4
0.669
17.0
0.940
23.9
0.530
13.5
 5000 1000 100
FCS.687 Circular Plastic Connector Cap - FLANGE CAP FOR 11/16" STR THRDS 0.500" LONG LDPE 11/16
0.676
17.2
-
-
0.940
23.9
0.500
12.7
 5000 1000 100
FCS.687L Flanged Plastic Fittings - FLANGE CAP FOR 11/16" STR THRDS 0.840" LONG LDPE 11/16
0.676
17.2
-
-
0.940
23.9
0.840
21.3
 5000 1000 100
FCM-18 Plastic Connector Cap - FLANGE CAP 18MM MTRC THRDS M18
0.696
17.7
-
-
1.004
25.5
0.470
11.9
 5000 1000 100
FCS.750 Flanged Plastic Caps - FLANGE CAP FOR 3/4" STR THRDS 0.670" LONG LDPE 3/4
0.738
18.7
-
-
1.000
25.4
0.670
17.0
 5000 1000 100
FCS.750L Flared Plastic Caps - FLANGE CAP FOR 3/4" STR THRDS 0.880" LONG LDPE 3/4
0.738
18.7
-
-
0.900
22.9
0.880
22.4
 5000 1000 100
FCSL.750 Flanged Plastic Caps - Threaded Part Protection - FLANGE CAP FOR 3/4" STR THRDS 1.560" LONG LDPE 3/4
0.739
18.8
-
-
0.880
22.4
1.560
39.6
 2500 500 50
FCSL.750L Plastic Flanged Caps for Threaded Applications - FLANGE CAP FOR 3/4" STR THRDS 2.660" LONG LDPE 3/4
0.739
18.8
-
-
0.880
22.4
2.660
67.6
 2000 400 40
FCM-20 Polyethylene Plastic Flanged Caps for Standard, Metric, BSP, and NPT Threads - FLANGE CAP 20MM MTRC THRDS M20
0.774
19.7
-
-
1.083
27.5
0.553
14.1
 5000 1000 100
FCBN0500 Flanged Caps for Imperial, Metric, BSP, and NPT Threads - FLANGE CAP FOR 0.500" (1/2") BSP-NPT THRDS 1/2 1/2
0.800
20.3
0.833
21.2
1.090
27.7
0.720
18.3
 3000 600 60
FCS.813 Circular Plastic Connector Cap - FLANGE CAP FOR 13/16" STR THRDS 0.560" LONG LDPE 13/16
0.802
20.4
-
-
1.060
26.9
0.560
14.2
 5000 1000 100
FCM-22 Flanged Plastic Fittings - FLANGE CAP 22MM MTRC THRDS M22
0.855
21.7
-
-
1.161
29.5
0.553
14.1
 5000 1000 100
FCSL.875 Plastic Connector Cap - FLANGE CAP FOR 7/8" STR THRDS 1.700" LONG LDPE 7/8
0.861
21.9
-
-
1.010
25.7
1.700
43.2
 2500 500 50
FCSL.875L Flanged Plastic Caps - FLANGE CAP FOR 7/8" STR THRDS 2.660" LONG LDPE 7/8
0.861
21.9
-
-
1.010
25.7
2.660
67.6
 1500 300 30
FCS.875 Flared Plastic Caps - FLANGE CAP FOR 7/8" STR THRDS 0.660" LONG LDPE 7/8
0.864
21.9
-
-
1.120
28.4
0.660
16.8
 4300 860 86
FCSL1.000 Flanged Plastic Caps - Threaded Part Protection - FLANGE CAP FOR 1" STR THRDS 1.800" LONG LDPE 1
0.988
25.1
-
-
1.150
29.2
1.800
45.7
 1500 300 30
FCS1.000 Plastic Flanged Caps for Threaded Applications - FLANGE CAP FOR 1" STR THRDS 0.660" LONG LDPE 1
0.990
25.1
-
-
1.250
31.8
0.660
16.8
 3000 600 60
FCBN0750 Polyethylene Plastic Flanged Caps for Standard, Metric, BSP, and NPT Threads - FLANGE CAP FOR 0.750" (3/4") BSP-NPT THRDS 3/4 3/4
1.011
25.7
1.045
26.5
1.310
33.3
0.750
19.1
 2000 400 40
FCSL1.062 Flanged Caps for Imperial, Metric, BSP, and NPT Threads - FLANGE CAP FOR 1-1/16" STR THRDS 1.890" LONG LDPE 1-1/16
1.049
26.6
-
-
1.190
30.2
1.890
48.0
 1000 200 20
FCSL1.062L Circular Plastic Connector Cap - FLANGE CAP FOR 1-1/16" STR THRDS 3.000" LONG LDPE 1-1/16
1.049
26.6
-
-
1.190
30.2
3.000
76.2
 900 180 18
FCS1.062 Flanged Plastic Fittings - FLANGE CAP FOR 1-1/16" STR THRDS 0.750" LONG LDPE 1-1/16 M27
1.051
26.7
-
-
1.310
33.3
0.750
19.1
 2400 480 48
FCSL1.125 Plastic Connector Cap - FLANGE CAP FOR 1-1/8" STR THRDS 2.120" LONG LDPE 1-1/8
1.113
28.3
-
-
1.250
31.8
2.120
53.8
 1500 300 30
FCSL1.125L Flanged Plastic Caps - FLANGE CAP FOR 1-1/8" STR THRDS 3.100" LONG LDPE 1-1/8
1.113
28.3
-
-
1.250
31.8
3.100
78.7
 900 180 18
FCS1.187 Flared Plastic Caps - FLANGE CAP FOR 1-3/16" STR THRDS 0.750" LONG LDPE 1-3/16 M30
1.175
29.8
-
-
1.440
36.6
0.750
19.1
 2000 400 40
FCBN1000 Flanged Plastic Caps - Threaded Part Protection - FLANGE CAP FOR 1.000" (1") BSP-NPT THRDS 1 1
1.267
32.2
1.310
33.3
1.560
39.6
0.930
23.6
 1000 200 20
FCM-33 Plastic Flanged Caps for Threaded Applications - FLANGE CAP 33MM MTRC THRDS M33
1.285
32.6
-
-
1.594
40.5
0.689
17.5
 2000 400 40
FCS1.313 Polyethylene Plastic Flanged Caps for Standard, Metric, BSP, and NPT Threads - FLANGE CAP FOR 1-5/16" STR THRDS 0.750" LONG LDPE 1-5/16
1.298
33.0
-
-
1.560
39.6
0.750
19.1
 1800 360 36
FCSL1.313 Flanged Caps for Imperial, Metric, BSP, and NPT Threads - FLANGE CAP FOR 1-5/16" STR THRDS 1.890" LONG LDPE 1-5/16
1.299
33.0
-
-
1.440
36.6
1.890
48.0
 1000 200 20
FCS1.437 Circular Plastic Connector Cap - FLANGE CAP FOR 1-7/16" STR THRDS 0.750" LONG LDPE 1-7/16
1.426
36.2
-
-
1.690
42.9
0.750
19.1
 1500 300 30
FCS1.563 Flanged Plastic Fittings - FLANGE CAP FOR 1-9/16" STR THRDS 0.750" LONG LDPE 1-9/16
1.548
39.3
-
-
1.710
43.4
0.750
19.1
 3000 600 60
FCSL1.625 Plastic Connector Cap - FLANGE CAP FOR 1-5/8" STR THRDS 1.920" LONG LDPE 1-5/8
1.611
40.9
-
-
1.760
44.7
1.920
48.8
 500 100 10
FCBN1250 Flanged Plastic Caps - FLANGE CAP FOR 1.250" (1-1/4") BSP-NPT THRDS 1-1/4 1-1/4
1.611
40.9
1.655
42.0
1.940
49.3
0.970
24.6
 800 160 16
FCS1.625 Flared Plastic Caps - FLANGE CAP FOR 1-5/8" STR THRDS 0.850" LONG LDPE 1-5/8
1.612
40.9
-
-
1.880
47.8
0.850
21.6
 1000 200 20
FCS1.687 Flanged Plastic Caps - Threaded Part Protection - FLANGE CAP FOR 1-11/16" STR THRDS 0.750" LONG LDPE 1-11/16
1.672
42.5
-
-
1.920
48.8
0.750
19.1
 1000 200 20
FCB1500 Plastic Flanged Caps for Threaded Applications - FLANGE CAP FOR 1.500" (1-1/2") BSP THRDS 1-1/2
1.839
46.7
1.884
47.9
2.150
54.6
0.970
24.6
 600 120 12
FCBN1500 Polyethylene Plastic Flanged Caps for Standard, Metric, BSP, and NPT Threads - FLANGE CAP FOR 1.500" (1-1/2") BSP-NPT THRDS 1-1/2 1-1/2
1.848
46.9
1.893
48.1
2.160
54.9
0.970
24.6
 600 120 12
FCS1.875 Flanged Caps for Imperial, Metric, BSP, and NPT Threads - FLANGE CAP FOR 1-7/8" STR THRDS 1.080" LONG LDPE 1-7/8
1.860
47.2
-
-
2.120
53.8
1.080
27.4
 800 160 16
FCSL1.875 Circular Plastic Connector Cap - FLANGE CAP FOR 1-7/8" STR THRDS 1.940" LONG LDPE 1-7/8
1.861
47.3
-
-
2.010
51.1
1.940
49.3
 300 60 6
FCB2000 Flanged Plastic Fittings - FLANGE CAP FOR 2.000" (2") BSP THRDS 2
2.305
58.5
2.350
59.7
2.610
66.3
1.030
26.2
 500 100 10
FCN2000 Plastic Connector Cap - FLANGE CAP FOR 2.000" (2") NPT THRDS 2
2.323
59.0
2.370
60.2
2.620
66.5
1.030
26.2
 500 100 10
FCS2.500 Flanged Plastic Caps - FLANGE CAP FOR 2-1/2" STR THRDS 1.300" LONG LDPE 2-1/2
2.485
63.1
-
-
2.750
69.9
1.300
33.0
 400 80 8
FCS3.500 Flared Plastic Caps - FLANGE CAP FOR 3-1/2" STR THRDS 1.340" LONG LDPE 3-1/2
3.485
88.5
-
-
4.090
103.9
1.340
34.0
 250 50 5
Part # Description To Fit STD Thread To Fit METRIC Thread To Fit NPT To Fit BSP Inside Diameter
in
mm
 Large I.D.
in
mm
 Flange OD
in
mm
 Inside Length
in
mm
 Box/Mini/Micro
QTY		 Buy Online
More info
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Micropacks are only available for purchase through our online store.


Not Quite Sure What You Need? Want to Consider Another Type or a Different Material?
Consult MOCAP's Exclusive Application Advisor for Assistance.



Flanged Plastic Caps - Information

MOCAP FC Series Flanged Plastic Caps are designed to protect threads with and without o-rings. Protects components or fittings from moisture, dust and damage during production, shipping and storage, and can also be used as low-temp masking during painting and plating. Flanged caps are easy to assemble or remove by hand or automated equipment.

Our FC Series are available in sizes to fit:
  • Straight threads, 5/16" through 3-1/2"
  • Metric threads, M5 through M33
  • BSP and NPT threads, sizes 1/8 through 2


The FC Series is available in a wide variety of colors, including red and a "natural" semi-transparent color which allows for visual verification of the threads or o-ring.

  • Use as Thread Protector or End Cap
  • Available For Standard Straight, Metric, and BSP/NPT Threads and Fittings
  • Flanged for Easy Removal



MOCAP stocks Flanged Plastic Caps in many sizes for immediate shipment.

MOCAP now offers Micro-Pack and Mini-Pack quantities when less than case quantities are what you really need. To place an order, click the cart icon on the size chart. Or, to get more information about MOCAP products, call 800.633.6775 or use our Contact Request Form to receive information by e-mail.








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MOCAP - Flanged Caps
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