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MS21251-B2S

Military Standard Turnbuckle Body

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Description

Clip-Locking Turnbuckles utilize 2 locking clips instead of lock-wire for safety. The turnbuckle barrel and terminals are slotted lengthwise to accommodate the locking clips. After the proper cable tension is reached the barrel slots are aligned with the terminal slots and the clips are inserted. The curved ends of the locking clips expand and latch in the vertical slot in the center of the barrel. Build up MS turnbuckle as sem blies, similar to the AN assemblies listed on the preceding page, by selecting a turnbuckle barrel, 2 end fittings and 2 clips from the components listed in the Table below. The price of the complete as sem bly is the sum of the prices shown for the components. Example: An MS turnbuckle assembly for 3/32" dia. cable, with fork end and pin eye consists of: 1 MS21251-B3S Barrel 1 MS21252-3LS Fork End 1 MS21254-3RS Pin Eye End 2 MS21256-1 Clips Less 10% for 6 or more complete assemblies. Less 15% for 12 or more complete assemblies. Note: MS21256-1 clips are short (1") and MS21256-2 are long (2")

Specifications

Alternate Part Number MS21251B2S AN155-8S
Body Length Between 2.219 inches and 2.281 inches
Body Style Round body w/locking device
Cable Dia. 1/16"
Diameter 0.250 in
Iii Material Copper alloy 482
Industry Standards/Certification MS21251
Length 2 1/4 in
Material Specification Comp 2 federal specification single material response qq-b-637
Min Breaking Strength 800
Thread 6-40
Thread Class 3b body
Thread Direction Right-hand
Thread Length 2.250
Thread Series UNF
Thread Series Designator Unf (fine thread) body
Thread Size 0.138 inches body, 6-40
Turnbuckle Component Barrel (Supercedes AN155)
Weight 0.015 lb

Other sizes

Parts that share this base number, ordered by size. Always verify the full specification before substituting.

Cross-reference

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Catalog data updated 2026-07-05. Report a data error