Ham-Let 121H, 120 HGN, 121HOB Catalog Page

CONNECTORS

120 HGN

GAUGE ADAPTER BSPP TO NPT

121 H

PIPE PLUG NPT

121HOB

HEX HEAD PLUG SAE/MS
STRAIGHT THREAD BOSS*

120HGN _ 1/4 1/4 -19 1/4 1.19 30.2 0.56 14.2 0.22 5.6 3/4

120HGN _ 3/8 3 /8 -19 3/8 1.27 32.3 0.56 14.2 0.26 6.6 15/16

120HGN _ 1/2 1/2-14 1/2 1.65 41.9 0.75 19.0 0.28 7.1 1

For Parallel Threads Sealing, see page 76

Ordering

Information

T

Female BSPP

ISO 228/1, BS 2779

Size

T1

Male NPT

Size

L N D

inch mm inch mm inch mm inch

Min. Opening

W

Hex. Flat

1/16

Ordering

Information

121H _ 1/16 1/16 0.75 19.0 5/16

121H _ 1/8 1/8 0.75 19.0 7/16

121H _ 1/4 1/4 0.96 24.4 9/16

121H _ 3/8 3/8 0.99 25.2 11/16

121H _ 1/2 1/2 1.21 30.7 7/8

121H _ 3/4 3/4 1.21 30.7 1

121H _ 1 1 1.50 38.1 1 3/8

Ordering

Information

121HOB _ 5/16-24 5/16-24 0.70 17. 8 0.30 7.6 7/16 -902

121HOB _ 7/16-20 7/16-20 0.76 19. 3 0.36 9.1 9/16 -904

121HOB _ 9/16-18 9/16-18 0.82 20.8 0.39 9.9 11/16 -906

121HOB _ 3/4-16 3/4-16 0.89 22.6 0.44 11.2 7/8 -908

121HOB _ 1

121HOB _ 1

* Per SAE J1926 and MS 16142. See page 80 for mounting dimensions.
** O-rings used are Fluorocarbon FKM 90 Durometer. Other O-ring materials are available on request.

“D” Dimension is minimum opening. Dimensions are for reference only, and are subject to change without notice.

1/16-12 1 1/16-12 1.12 28.4 0.59 15.0 1 1/4 -912

5/16 -12 1 5/16-12 1.18 30.0 0.59 15.0 1 1/2 -916

T

Male NPT Size

T

Straight Thread UN

L W

inch mm

Hex. Flat

inch

1/16

L F W

inch mm inch mm inch

Hex. Flat

O-Ring**

112

PRECISION INSTRUMENTATION PIPE FITTINGS