The Stud,locked in, cataloged under National Stock Number 5307-01-170-3200, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5307-01-170-3200 |
| Item Name | Stud,locked in |
| FSC / FSG | 5307 / 53 — Studs |
| Status | ACTIVE |
| Thread Length | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM STUD THREAD IN |
| Thread Length | 0.417 INCHES MINIMUM NUT THREAD IN |
| Hardness Rating | 48.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM |
| Style Designator | LOCKED IN |
| Material Document and Classification | AMS5737 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Distance From End of Stud End Threads to Nut End | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.250 INCHES STUD THREAD IN |
| Nominal Thread Size | 0.190 INCHES NUT THREAD IN |
| Locking Feature | RING, LOCK KEYED |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A NUT THREAD A |
| Thread Class | 3A STUD THREAD A |
| Thread Quantity Per Inch | 28 STUD THREAD |
| Thread Quantity Per Inch | 32 NUT THREAD |
| Material | IRON ALLOY 660 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) STUD THREAD |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) NUT THREAD |
| 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 |
|---|---|
| 682-550-0007 | 5/2 Secondary reference U.S. Government activity |
| 21130-3 | 3/9 Design control — primary reference Stanley Engineered Fastening Llc |
NSN 5307-01-170-3200 is a Stud,locked in, classified under FSC 5307, Studs. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 7510-01-255-7034. Verify interchangeability with system specifications before substitution.
Key specifications for 5307-01-170-3200: Thread Length: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM STUD THREAD IN; Thread Length: 0.417 INCHES MINIMUM NUT THREAD IN; Hardness Rating: 48.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM; Style Designator: LOCKED IN. 19 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.