The Stud,locked in, cataloged under National Stock Number 5307-01-386-8149, 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19 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-386-8149 |
| Item Name | Stud,locked in |
| FSC / FSG | 5307 / 53 — Studs |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416 TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM STUD THREAD IN |
| Thread Length | 0.610 INCHES MINIMUM AND 0.670 INCHES MAXIMUM NUT THREAD IN |
| Style Designator | LOCKED IN |
| Material Document and Classification | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Distance From End of Stud End Threads to Nut End | 1.095 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.375 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.500 INCHES STUD THREAD IN |
| Locking Feature | RING, LOCK KEYED |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Thread Class | 2A STUD THREAD A |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 13 STUD THREAD |
| Thread Quantity Per Inch | 16 NUT THREAD |
| Material | STEEL COMP 4140 OR STEEL COMP 8740 |
| Thread Series Designator | UNJC NUT THREAD |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) 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 |
|---|---|
| MS51833-104-18 | 5/9 Secondary reference U.S. Government activity |
| MS51833-104-18 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5307-01-386-8149 is a Stud,locked in, classified under FSC 5307, Studs. Status: active.
Key specifications for 5307-01-386-8149: Surface Treatment Document and Classification: QQ-P-416 TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM STUD THREAD IN; Thread Length: 0.610 INCHES MINIMUM AND 0.670 INCHES MAXIMUM NUT THREAD IN; 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.