5310-00-079-3518 WASHER,FLAT Index 5310-00-079-3521 WASHER,SHOULDERED AND RECESSED

National Stock Number:
5325-00-079-3519

Federal Supply Class:
5325

National Item Identification Number:
000793519

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:
589544-145934ONTIC ENGINEERING & MANUFACTURING, INC
589544-173030HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
FLANGE DIAMETER0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM
FLANGE THICKNESS0.307 INCHES MINIMUM AND 0.313 INCHES MAXIMUM
INSERT SIZE0.2770 IN. MIN 0.2789 IN. MAX DIA
LENGTH0.480 INCHES MINIMUM AND 0.490 INCHES MAXIMUM
SECOND FLANGE THICKNESS0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM
WIDTH ACROSS FLATS0.216 INCHES MINIMUM AND 0.220 INCHES MAXIMUM
STYLE DESIGNATORFLANGE


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