Threaded (UN and UNS) Plugs

Designed for use in aircraft and hydraulic equipment applications and seals out contaminants while protecting threads. A rolled thread allows the cap to be pushed or threaded on. Threads meet UN/UNS specifications.

External ribs aid in installation and removal
Designed for UN/UNS threads
Flanged to create a tight seal

Material: High-Density Polyethylene

Standard Colour: Blue

Type: Fitting Protection, Protection & Finishing , Plugs

Material: HDPE, Polyethylene

Applications: Thread and Flange Protection

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Part Number	Dim B (mm)	Dim C (mm)	Dim D (mm)	To Fit Thread Size	To Fit Tube Size
DPN-3	6.35	7.11	11.18	3/8-28	3/16
DPN-4	7.87	7.62	14.22	7/16-24	1/4
DPN-5	7.87	7.62	15.75	1/2-24	5/16
DPN-6	7.87	8.13	17.53	9/16-20	3/8
DPN-8	7.87	8.13	22.35	23/32-20	1/2
DPN-10	7.87	10.16	25.40	27/32-18	5/8
DPN-12	7.87	10.67	28.45	1-16	3/4
DPN-14	6.35	11.43	31.75	1-1/8-16	7/8
DPN-16	6.35	11.43	35.05	1-1/4-14	1
DPN-20	6.35	11.43	41.15	1-33/64-14	1-1/4
DPN-21S	6.35	11.68	44.45	1-37/64-14	1-1/4
DPN-24	6.35	13.97	50.80	1-25/32-14	1-1/2
DPN-25S	6.35	13.97	53.85	1-27/32-14	1-1/2

Part Number

Dim B (mm)

Dim C (mm)

Dim D (mm)

To Fit Thread Size

To Fit Tube Size

DPN-3

6.35

7.11

11.18

3/8-28

3/16

DPN-4

7.87

7.62

14.22

7/16-24

1/4

DPN-5

7.87

7.62

15.75

1/2-24

5/16

DPN-6

7.87

8.13

17.53

9/16-20

3/8

DPN-8

7.87

8.13

22.35

23/32-20

1/2

DPN-10

7.87

10.16

25.40

27/32-18

5/8

DPN-12

7.87

10.67

28.45

1-16

3/4

DPN-14

6.35

11.43

31.75

1-1/8-16

7/8

DPN-16

6.35

11.43

35.05

1-1/4-14

DPN-20

6.35

11.43

41.15

1-33/64-14

1-1/4

DPN-21S

6.35

11.68

44.45

1-37/64-14

1-1/4

DPN-24

6.35

13.97

50.80

1-25/32-14

1-1/2

DPN-25S

6.35

13.97

53.85

1-27/32-14

1-1/2