The Stud,self-Locking, cataloged under National Stock Number 5307-00-237-8140, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5307-00-237-8140 |
| Item Name | Stud,self-Locking |
| FSC / FSG | 5307 / 53 — Studs |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-F-14072,E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM NUT THREAD IN |
| Style Designator | SELF-LOCKING |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.086 INCHES NUT THREAD IN |
| Head Length | 0.036 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN |
| Locking Feature | SELF-CLINCHING HEAD |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A NUT THREAD A |
| Thread Quantity Per Inch | 56 NUT THREAD |
| Material | STEEL COMP 303 |
| Distance Across Flats | 0.188 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) NUT THREAD |
| Head Diameter | 0.155 INCHES MINIMUM AND 0.159 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 |
|---|---|
| M63540/3-1-4 | 2/2 Government specification standardization U.S. Government activity |
NSN 5307-00-237-8140 is a Stud,self-Locking, classified under FSC 5307, Studs. Status: active.
Key specifications for 5307-00-237-8140: Surface Treatment Document and Classification: MIL-F-14072,E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM NUT THREAD IN; Style Designator: SELF-LOCKING; Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE. 15 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.