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
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNF
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 OR CHROMATE OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND


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