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National Stock Number: 5307-01-204-2219
Federal Supply Class: 5307
National Item Identification Number: 012042219
Description: STUD,SELF-LOCKING
Detail: A headed fastener threaded externally on a portion or on the full length of the shank. The head has projections on the underside or periphery, or is otherwise designed to be mechanically pressed and embedded in a metallic panel, or the like. It is securely locked in position by the displaced metal. For items that require locking rings, see BOLT, SELF-LOCKING and STUD, LOCKED IN. Excludes INSERT, SCREW THREAD.
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Manufacturer Information:
70219-02556-101 | 65780 | TEK PRECISION CO LIMITED | 70219-02556-101 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
DISTANCE ACROSS FLATS | 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM | DISTANCE FROM COTTER PIN HOLE CENTERLINE TO NUT END | 0.187 INCHES NOMINAL FIRST HOLE | COTTER PIN HOLE DIAMETER | 0.109 INCHES NOMINAL FIRST HOLE | HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM | HEAD DIAMETER | 0.610 INCHES MINIMUM AND 0.630 INCHES MAXIMUM | HEAD LENGTH | 0.337 INCHES NOMINAL | PROPRIETARY CHARACTERISTICS | PACS | NOMINAL THREAD SIZE | 0.375 INCHES NUT THREAD | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL | THREAD CLASS | 3A NUT THREAD | THREAD DIRECTION | RIGHT-HAND NUT THREAD | THREAD LENGTH | 0.470 INCHES MINIMUM NUT THREAD AND 0.530 INCHES MAXIMUM NUT THREAD | THREAD QUANTITY PER INCH | 24 NUT THREAD | THREAD SERIES DESIGNATOR | UNJF NUT THREAD |
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