The Stud,self-Locking, cataloged under National Stock Number 5307-01-377-1038, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-377-1038 |
| Item Name | Stud,self-Locking |
| FSC / FSG | 5307 / 53 — Studs |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ASTM A380 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.3925 INCHES MINIMUM AND 0.4375 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN |
| Style Designator | SELF-LOCKING |
| Thread Direction | RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED |
| Nominal Thread Size | 0.086 INCHES LOCATION NOT OTHERWISE SPECIFIED IN |
| Head Length | 0.114 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| Locking Feature | SELF-CLINCHING HEAD |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A LOCATION NOT OTHERWISE SPECIFIED A |
| Thread Quantity Per Inch | 56 LOCATION NOT OTHERWISE SPECIFIED |
| Material | STEEL COMP 303 OR STEEL COMP 303SE |
| Distance Across Flats | 0.172 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED |
| Head Diameter | 0.157 INCHES NOMINAL 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 |
|---|---|
| M63540/3-4-7 | 2/2 Government specification standardization U.S. Government activity |
| MIL-S-63540/3-4-7 | 4/1 Identification reference U.S. Government activity |
NSN 5307-01-377-1038 is a Stud,self-Locking, classified under FSC 5307, Studs. Status: active.
Key specifications for 5307-01-377-1038: Surface Treatment Document and Classification: ASTM A380 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.3925 INCHES MINIMUM AND 0.4375 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN; Style Designator: SELF-LOCKING; Overall Length: 0.4375 INCHES NOMINAL IN. 14 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.