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National Stock Number:
5325-00-327-6168
Federal Supply Class:
5325
National Item Identification Number:
003276168
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.
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Manufacturer Information:
| 6879641 | 73342 | ALLISON TRANSMISSION INC |
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Techincal Specification:
| FLANGE DIAMETER | 0.513 INCHES NOMINAL | | FULL INTERNAL THREAD LENGTH | 0.311 INCHES MINIMUM AND 0.331 INCHES MAXIMUM | | INSERT SIZE | 0.437-20 UNJF 3A | | INTERNAL THREAD RELIEF DEPTH | 0.050 INCHES NOMINAL | | LENGTH | 0.520 INCHES NOMINAL | | NOMINAL THREAD SIZE | 0.250 INCHES | | THREAD CLASS | 3B | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 28 |
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