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MS51991E208

Military Standard Screw Thread Insert

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Description

Thread Size: 3/8", Thread Length: 3/8"

Specifications

Insert Size 9/16 in.-12 unc (coarse thread) cl 3a
Length 0.620
Material Iron
Material Specification Ams 5734 assn standard single material response
Style Designator Serrated
Surface Treatment Passivate
Thread Class 3b
Thread Direction Right-hand
Thread Length Between 0.4050 inches and 0.4350 inches
Thread Qty 24
Thread Qty Per Inch (tpi) 24
Thread Series Designator UNJC
Thread Size 0.3750

Other sizes

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

Cross-reference

No interchangeable or dimensionally similar parts are on record for MS51991E208. Try the cross-reference lookup to search by a different part number.

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