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National Stock Number:
5307-01-331-1977
Federal Supply Class:
5307
National Item Identification Number:
013311977
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:
| GS520L4-8 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | M63540/1-44 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | MIL-S-63540/1 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| HEAD DIAMETER | 0.323 INCHES MINIMUM AND 0.353 INCHES MAXIMUM | | HEAD LENGTH | 0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM | | LOCKING FEATURE | SELF-CLINCHING HEAD | | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES | | MATERIAL | STEEL COMP 1005 OR STEEL COMP 1006 OR STEEL COMP 1008 OR STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1012 OR STEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 | | NOMINAL THREAD SIZE | 0.250 INCHES NUT THREAD | | OVERALL LENGTH | 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM | | STYLE DESIGNATOR | SELF-LOCKING | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL | | THREAD CLASS | 2A NUT THREAD | | THREAD LENGTH | 0.350 INCHES MINIMUM AND 0.390 INCHES MAXIMUM NUT THREAD | | THREAD DIRECTION | RIGHT-HAND NUT THREAD | | THREAD QUANTITY PER INCH | 20 NUT THREAD | | THREAD SERIES DESIGNATOR | UNC NUT THREAD |
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