5325-00-171-4354 GROMMET,NONMETALLIC Index 5325-00-171-4357 GROMMET,NONMETALLIC

National Stock Number:
5325-00-171-4355

Federal Supply Class:
5325

National Item Identification Number:
001714355

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:
3017T47P0299207GENERAL ELECTRIC COMPANY
932BW-2SE025075237HOWMET GLOBAL FASTENING SYSTEMS INC.
932BW-2SE25075237HOWMET GLOBAL FASTENING SYSTEMS INC.
W224-7-4A01556EMHART TEKNOLOGIES LLC


Techincal Specification:
INSERT SIZE0.250-20 UNJC-3A
LENGTH0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OVERALL
NOMINAL THREAD SIZE0.164 INCHES
SPECIAL FEATURESFURNISHED W/ASSEMBLED KEY RING
WIDTH ACROSS FLATS0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM
STYLE DESIGNATORKEYLOCK
THREAD CLASS3B
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH36
TOP PORTION UNTHREADED OUTSIDE LENGTH0.032 INCHES MINIMUM AND 0.042 INCHES MAXIMUM


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