5310-01-399-6127 WASHER,FLAT Index 5340-01-399-6129 PLATE,MOUNTING

National Stock Number:
5325-01-399-6128

Federal Supply Class:
5325

National Item Identification Number:
013996128

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:
6510695-253711NAVAL SEA SYSTEMS COMMAND
715658-35905869RAYTHEON COMPANY
KNKD42BJMXSY29372HOWMET GLOBAL FASTENING SYSTEMS INC.


Techincal Specification:
FULL INTERNAL THREAD LENGTH0.4000 INCHES NOMINAL
INSERT SIZE0.5000 IN. OD
INTERNAL THREAD RELIEF DEPTH0.2500 INCHES NOMINAL
LENGTH0.3850 INCHES MINIMUM AND 0.4150 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OR STEEL COMP 4140 OVERALL
MOUNTING FACILITY QUANTITY4
NOMINAL THREAD SIZE0.5000 INCHES
STYLE DESIGNATORKEYLOCK
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 ASSN STD SINGLE TREATMENT RESPONSE OR QQ-P-416, TY 2, CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OR CADMIUM AND CHROMATE OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNF


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