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National Stock Number:
5325-01-286-7321
Federal Supply Class:
5325
National Item Identification Number:
012867321
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:
| CTS310A-19 | 76301 | THE BOEING COMPANY | | MS51831A109 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| MATERIAL | STEEL COMP 4140 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND | | CHROMATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | STYLE DESIGNATOR | KEYLOCK | | LENGTH | 1.110 INCHES MINIMUM AND | | 1.140 INCHES MAXIMUM | | INTERNAL THREAD RELIEF DEPTH | 0.090 INCHES MINIMUM AND | | 0.110 INCHES MAXIMUM | | FULL INTERNAL THREAD LENGTH | 1.025 INCHES NOMINAL | | INSERT SIZE | 1.1250-12UNF-2A | | SPECIAL FEATURES | FOUR LOCKING KEYS; TOP MARKED W/TWO PARALLEL DASH MARKS; ROCKWELL HARDNESS 36.0 TO 40.0; HEAT TREATED TO 160000 PSI | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 96906 | | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS51831A109 |
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