The Stud,self-Locking, cataloged under National Stock Number 5307-01-623-2195, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-623-2195 |
| Item Name | Stud,self-Locking |
| FSC / FSG | 5307 / 53 — Studs |
| Status | ACTIVE |
| Surface Treatment Document and Classification | CLEANED,DESCALED AND PASSIVATED IAW ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.850 INCHES NOMINAL NUT THREAD IN |
| Hardness Rating | 171.0 BRINELL STANDARD MINIMUM |
| Style Designator | SELF-LOCKING |
| Material Document and Classification | ASTM A493 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A582/A582M ASSN STD 2ND MATERIAL RESPONSE OR ASTM A582/A582M ASSN STD 3RD MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.313 INCHES NUT THREAD IN |
| Specification/standard Data | 80205-NAS-63540/1 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Head Length | 0.150 INCHES MAXIMUM IN |
| Locking Feature | SELF-CLINCHING HEAD |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A NUT THREAD A |
| Thread Quantity Per Inch | 18 NUT THREAD |
| Material | STEEL CORROSION RESISTING OR STEEL COMP 303 OR STEEL COMP 303SE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) NUT THREAD |
| Head Diameter | 0.361 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| M63540/1-54C | 3/2 Design control — primary reference U.S. Government activity |
NSN 5307-01-623-2195 is a Stud,self-Locking, classified under FSC 5307, Studs. Status: active.
Key specifications for 5307-01-623-2195: Surface Treatment Document and Classification: CLEANED,DESCALED AND PASSIVATED IAW ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.850 INCHES NOMINAL NUT THREAD IN; Hardness Rating: 171.0 BRINELL STANDARD MINIMUM; Style Designator: SELF-LOCKING. 16 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.