5340-01-040-5871 INSERT,SCREW THREAD Index 5310-01-040-5873 WASHER,FLAT

National Stock Number:
5325-01-040-5872

Federal Supply Class:
5325

National Item Identification Number:
010405872

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:
9101M24P2107482GENERAL ELECTRIC COMPANY
K50460-4-115653HOWMET GLOBAL FASTENING SYSTEMS INC
K50460-4-175237HOWMET GLOBAL FASTENING SYSTEMS INC.


Techincal Specification:
FULL INTERNAL THREAD LENGTH0.335 INCHES MINIMUM AND 0.395 INCHES MAXIMUM
INSERT SIZE3/8-16
INTERNAL THREAD RELIEF DEPTH0.040 INCHES MINIMUM AND 0.080 INCHES MAXIMUM
LENGTH0.415 INCHES MINIMUM AND 0.435 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7720,COND B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 302 OVERALL
NOMINAL THREAD SIZE0.250 INCHES
STYLE DESIGNATORKEYLOCK
THREAD CLASS3B
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH28


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