The Stud,locked in, cataloged under National Stock Number 5307-01-010-2503, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. Government technical data includes 25 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5307-01-010-2503 |
| Item Name | Stud,locked in |
| FSC / FSG | 5307 / 53 — Studs |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES NUT THD |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Distance From Serrated Portion to Nut End | 0.860 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN |
| Thread Length | 0.265 INCHES MINIMUM AND 0.295 INCHES MAXIMUM STUD THREAD IN |
| Thread Length | 0.425 INCHES MINIMUM AND 0.455 INCHES MAXIMUM NUT THREAD IN |
| Hardness Rating | 269.0 BRINELL STANDARD MINIMUM |
| Style Designator | LOCKED IN |
| Thread Pitch Diameters | +0.2187 TO 0.2195 INCHES STUD THREAD IN |
| Material Document and Classification | AMS 5734 ASSN STD SINGLE MATERIAL RESPONSE |
| Distance From Serrated Portion to End of Stud Thread | 0.130 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Serration Included Angle | 102.0 DEGREES NOMINAL |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.250 INCHES STUD THREAD IN |
| Nominal Thread Size | 0.190 INCHES NUT THREAD IN |
| Distance From Serrated Portion to Stud End | 0.425 INCHES MINIMUM AND 0.455 INCHES MAXIMUM IN |
| Locking Feature | RING, LOCK SERRATED |
| Serration Quantity | 13 |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 32 NUT THREAD |
| Thread Quantity Per Inch | 20 STUD THREAD |
| Material | STEEL |
| 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 |
|---|---|
| MS51989E104-14 | 2/2 Government specification standardization U.S. Government activity |
NSN 5307-01-010-2503 is a Stud,locked in, classified under FSC 5307, Studs. Status: active.
Key specifications for 5307-01-010-2503: Surface Finish: 32.0 MICROINCHES NUT THD; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Distance From Serrated Portion to Nut End: 0.860 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN; Thread Length: 0.265 INCHES MINIMUM AND 0.295 INCHES MAXIMUM STUD THREAD IN. 25 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.