Library › Hardware › Tri-clamp × female NPT adapters (22MP style): ½ to 4 in

1½ in clamp × 1½ FNPT

1½ in clamp × 1½ FNPT: 2.25 in face to end; tap-drill bore Ø44.0 × 20.4

Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.

STEP STL free, CC BY 4.0 (credit "Xem Studio")

Dimensions

clamp_in	1½
npt	1½
A_in	2.25
A_mm	57.1
tap_drill_mm	44.0
L2_mm	18.38

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From the full sheet

Tri-clamp × female NPT adapters (22MP style): ½ to 4 in: every size, notes, mating features and sources. How long is a tri-clamp to female NPT adapter?

Other sizes

½ in clamp × ⅛ FNPT
½ in clamp × ¼ FNPT
½ in clamp × ¾ FNPT
¾ in clamp × ¼ FNPT
¾ in clamp × ¾ FNPT
2 in clamp × 2 FNPT
2½ in clamp × 2½ FNPT
3 in clamp × 3 FNPT
4 in clamp × 4 FNPT