5325-01-308-6255 INSERT,SCREW THREAD Index 5340-01-308-6257 HOOK,COAT AND HAT

National Stock Number:
5325-01-308-6256

Federal Supply Class:
5325

National Item Identification Number:
013086256

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:
10160064A486GNIMIKKEISTOKESKUS NCB FINLAND
4083T78P0199207GENERAL ELECTRIC COMPANY
RZA1298683324HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
FEATURES PROVIDEDINDIVIDUALLY KEYED
INSERT SIZE0.375-16 UNJC-3A
LENGTH0.515 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALIRON ALLOY 660 OVERALL
NOMINAL THREAD SIZE0.250 INCHES
STYLE DESIGNATORSERRATED
THREAD CLASS3B
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF)
THREAD QUANTITY PER INCH28


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