The Stud,locked in, cataloged under National Stock Number 5307-01-388-1815, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5307-01-388-1815 |
| Item Name | Stud,locked in |
| FSC / FSG | 5307 / 53 — Studs |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Distance From Serrated Portion to Nut End | 0.923 INCHES MINIMUM AND 0.953 INCHES MAXIMUM IN |
| Thread Length | 0.495 INCHES MINIMUM AND 0.525 INCHES MAXIMUM STUD THREAD IN |
| Thread Length | 0.545 INCHES MINIMUM AND 0.575 INCHES MAXIMUM NUT THREAD IN |
| Style Designator | LOCKED IN |
| Thread Pitch Diameters | +0.3358 TO 0.3378 INCHES STUD THREAD IN |
| Material Document and Classification | AMS 5734 ASSN STD SINGLE MATERIAL RESPONSE |
| Distance From Serrated Portion to End of Stud Thread | 0.180 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.312 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.375 INCHES STUD THREAD IN |
| Distance From Serrated Portion to Stud End | 0.675 INCHES MINIMUM AND 0.705 INCHES MAXIMUM IN |
| Locking Feature | RING, LOCK SERRATED |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 24 NUT THREAD |
| Thread Quantity Per Inch | 16 STUD THREAD |
| Material | IRON ALLOY 660 |
| Thread Series Designator | UNF NUT THREAD |
| Thread Series Designator | UNS STUD 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 |
|---|---|
| MS51989E106-15 | 2/2 Government specification standardization U.S. Government activity |
NSN 5307-01-388-1815 is a Stud,locked in, classified under FSC 5307, Studs. Status: active.
Key specifications for 5307-01-388-1815: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Distance From Serrated Portion to Nut End: 0.923 INCHES MINIMUM AND 0.953 INCHES MAXIMUM IN; Thread Length: 0.495 INCHES MINIMUM AND 0.525 INCHES MAXIMUM STUD THREAD IN; Thread Length: 0.545 INCHES MINIMUM AND 0.575 INCHES MAXIMUM NUT THREAD IN. 21 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.