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National Stock Number:
5325-00-340-4639
Federal Supply Class:
5325
National Item Identification Number:
003404639
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:
| S1565-64179-001 | 78286 | SIKORSKY AIRCRAFT CORPORATION | | S1565-64179-1 | 78286 | SIKORSKY AIRCRAFT CORPORATION | | S1565-64179-1 | 8P827 | EDR INDUSTRIES, INC. | | S1565-64179-1 | D1081 | AIRBUS DEUTSCHLAND GMBH -WERK BREMEN- |
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Techincal Specification:
| SURFACE TREATMENT | ANODIZE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | STYLE DESIGNATOR | FLANGE | | FLANGE THICKNESS | 0.093 INCHES NOMINAL | | LENGTH | 0.593 INCHES MINIMUM AND | | 0.598 INCHES MAXIMUM | | WIDTH ACROSS FLATS | 0.553 INCHES MINIMUM AND | | 0.565 INCHES MAXIMUM | | INSERT SIZE | 0.375-24 UNF 3A | | THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD SIZE | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3B | | SPECIAL FEATURES | DRILL 2 LOCKWIRE HOLES IN FLANGE 0.040 IN. DIA | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 78286 | | DESIGN CONTROL REFERENCE | S1565-64179-001 |
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