Heyco Liquid Tight Threaded Plugs

Material: Nylon 6/6

Flammability Rating: 94V-2

Temperature Range: -40°F to 221°F (-40°C to 105°C)

Ingress Protection Rating: IP 68 (70 PSI, 5 BAR)

Integral Sealing Ring ensures a superior seal at the clearance or threaded hole location, every time.
Provides a liquid-tight seal up to 70 psi.
Threaded plugs for hydraulic and pneumatic applications.
Seals threaded openings and protects against contamination and moisture.
Lower cost option over brass or steel NPT and PG plugs.
Non-corrosive–resists salt water, weak acids, gasoline, alcohol, oil, grease and common solvents.
Resists oil and heat up to 221°F (105°C).
Approximate Head Thickness: .21" (5,3 mm). Thickness may vary.
Hex shaped head with slot for wrench or screwdriver installation.
Electrically non-conductive nylon 6/6.

Heyco^® Liquid Tight Threaded Plugs
Liquid Tight, with Integral Sealing Ring. Hex Head with Slot.
Thread Type and Size	Part Number	Description	Part Dimensions
NPT
NPT 1/4	3544B	3544	–	LTTP NPT 1/4	.63	16,0	.66	16,8
NPT 3/8	3545B	3545	–	LTTP NPT 3/8	.83	21,1	.69	17,5
NPT 1/2	3546B	3546	V3546	LTTP NPT 1/2	.98	24,9	.81	20,6
NPT 3/4	3547B	3547	–	LTTP NPT 3/4	1.29	32,8	.86	21,8
NPT 1	3548B	3548	–	LTTP NPT 1	1.74	44,2	1.05	26,7
NPT 1-1/4	3549B	3549	V3549	LTTP NPT 1-1/4	2.06	52,3	1.08	27,4
PG
PG 7	3574B	3574	–	LTTP PG 7	.63	16,0	.53	13,5
PG 9	3575B	3575	–	LTTP PG 9	.83	21,1
PG 13.5	3576B	3576	–	LTTP PG 13.5	.98	24,9	.62	15,8
PG 21	3401B	3401	–	LTTP PG 21	1.29	32,8	.68	17,3
PG 29	3578B	3578	–	LTTP PG 29	1.74	44,2	.87	22,1
PG 36	3579B	3579	–	LTTP PG 36	2.06	52,3	.78	19,8
Metric
M12	3582B	3582	–	LTTP M12	.63	16,0	.53	13,5
M16	3583B	3583	–	LTTP M16	.83	21,1
M20	3584B	3584	–	LTTP M20	.98	24,9	.62	15,8
M32	3586B	3586	–	LTTP M32	1.74	44,2	.87	22,1
M40	3587B	3587	–	LTTP M40	2.06	52,3	.78	19,8

Heyco^® Liquid Tight Threaded Plugs
Liquid Tight, with Integral Sealing Ring. Hex Head with Slot.

Thread Type
and Size

Part Number

Description

Part Dimensions

A
Wrenching Flats

B
Overall Height

Color

Black

Gray

94V-0 Black

in.

mm.

in.

mm.

NPT

NPT 1/4

3544B

3544

–

LTTP NPT 1/4

.63

16,0

.66

16,8

NPT 3/8

3545B

3545

–

LTTP NPT 3/8

.83

21,1

.69

17,5

NPT 1/2

3546B

3546

V3546

LTTP NPT 1/2

.98

24,9

.81

20,6

NPT 3/4

3547B

3547

–

LTTP NPT 3/4

1.29

32,8

.86

21,8

NPT 1

3548B

3548

–

LTTP NPT 1

1.74

44,2

1.05

26,7

NPT 1-1/4

3549B

3549

V3549

LTTP NPT 1-1/4

2.06

52,3

1.08

27,4

PG 7

3574B

3574

–

LTTP PG 7

.63

16,0

.53

13,5

PG 9

3575B

3575

–

LTTP PG 9

.83

21,1

PG 13.5

3576B

3576

–

LTTP PG 13.5

.98

24,9

.62

15,8

PG 21

3401B

3401

–

LTTP PG 21

1.29

32,8

.68

17,3

PG 29

3578B

3578

–

LTTP PG 29

1.74

44,2

.87

22,1

PG 36

3579B

3579

–

LTTP PG 36

2.06

52,3

.78

19,8

Metric

M12

3582B

3582

–

LTTP M12

.63

16,0

.53

13,5

M16

3583B

3583

–

LTTP M16

.83

21,1

M20

3584B

3584

–

LTTP M20

.98

24,9

.62

15,8

M32

3586B

3586

–

LTTP M32

1.74

44,2

.87

22,1

M40

3587B

3587

–

LTTP M40

2.06

52,3

.78

19,8