5325-01-132-6828 INSERT,SCREW THREAD Index 7530-01-132-6830 TAPE,PAPER,COMPUTINGMACHINE

National Stock Number:
5325-01-132-6829

Federal Supply Class:
5325

National Item Identification Number:
011326829

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:
CTS310A-1376301THE BOEING COMPANY
KNH420JMSY29372HOWMET GLOBAL FASTENING SYSTEMS INC.
KNH420JMXSY29372HOWMET GLOBAL FASTENING SYSTEMS INC.
MS51831A10296906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
FULL INTERNAL THREAD LENGTH0.305 INCHES NOMINAL
INSERT SIZE0.438-14 UNC 2A
INTERNAL THREAD RELIEF DEPTH0.070 INCHES NOMINAL
LENGTH0.375 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4140 OVERALL
NOMINAL THREAD SIZE0.250 INCHES
STYLE DESIGNATORKEYLOCK
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3B
THREAD LENGTH0.305 INCHES NOMINAL
THREAD SERIES DESIGNATORUNJC
THREAD QUANTITY PER INCH20


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