The Stud,self-Locking, cataloged under National Stock Number 5307-01-185-2594, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-185-2594 |
| Item Name | Stud,self-Locking |
| FSC / FSG | 5307 / 53 — Studs |
| Status | ACTIVE |
| Thread Length | 0.895 INCHES MINIMUM AND 0.935 INCHES MAXIMUM NUT THREAD IN |
| Style Designator | SELF-LOCKING |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.138 INCHES NUT THREAD IN |
| Head Length | 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| Locking Feature | SELF-CLINCHING HEAD |
| Thread Class | 2A NUT THREAD A |
| Thread Quantity Per Inch | 32 NUT THREAD |
| Material | STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 309 OR STEEL COMP 308 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 384 OR STEEL COMP 385 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) NUT THREAD |
| Head Diameter | 0.188 INCHES MINIMUM AND 0.218 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 |
|---|---|
| M63540/1-18C | 2/2 Government specification standardization U.S. Government activity |
| MIL-S-63540/1 | 4/1 Identification reference U.S. Government activity |
NSN 5307-01-185-2594 is a Stud,self-Locking, classified under FSC 5307, Studs. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5307-01-188-0391. Verify interchangeability with system specifications before substitution.
Key specifications for 5307-01-185-2594: Thread Length: 0.895 INCHES MINIMUM AND 0.935 INCHES MAXIMUM NUT THREAD IN; Style Designator: SELF-LOCKING; Overall Length: 0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN; Thread Direction: RIGHT-HAND NUT THREAD. 11 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.