5340-01-275-0549 RETAINER,HELICAL COMPRESSION SPR Index 4320-01-275-0551 RING,LANTERN

National Stock Number:
5325-01-275-0550

Federal Supply Class:
5325

National Item Identification Number:
012750550

Description:
INSERT,SCREW THREAD

Detail:
A cylindrical item which may have wrenching and/or driving facilities and/or shoulders. It is designed to be inserted in a drilled or a pretapped hole, or molded or pressed into soft material to reduce the size of a tapped hole; to provide threads; to add strength, and/or to prevent stripping. It is one of the following: (1) a one-piece, flanged or unflanged, internally threaded item which may have external threads, and/or serrations around the periphery of the collar, designed to engage a serrated lock ring which is not included with the item; (2) a one-piece precision coiled wire; (3) a two-piece item consisting of an internally threaded cylinder and a mating externally threaded part; or (4) a one-piece internally threaded item whose outside diameter is tapered and/or knurled and/or with fin(s). The internal thread of the item may have a locking feature. Excludes items having a sleeve on its underportion which can be clinched or crimped. Excludes BUSHING, MACHINE THREAD; NUT, PLAIN, KNURLED; NUT, PLAIN, ROUND; NUT, PLAIN, CLINCH and NUT, SELF-LOCKING, CLINCH. See also NUT, PLAIN, PLATE.


Manufacturer Information:
803-2177525-C831-0780064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
FLANGE THICKNESS0.188 INCHES NOMINAL
INSERT SIZE1.500-12 UNF-2A
LENGTH1.375 INCHES NOMINAL
MATERIALSTEEL CORROSION RESISTING OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
WIDTH ACROSS FLATS1.625 INCHES NOMINAL


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