The Stud,locked in, cataloged under National Stock Number 5307-01-500-4561, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-500-4561 |
| Primary Part Number | 70250-13701-101 |
| Item Name | Stud,locked in |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416;TYPE 2;CLASS 3 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 | 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM NUT THREAD IN |
| Thread Length | 0.375 INCHES MINIMUM AND 0.405 INCHES MAXIMUM STUD THREAD IN |
| Style Designator | LOCKED IN |
| Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE |
| Distance From Serrated Portion to End of Stud Thread | 0.140 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.250 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.312 INCHES STUD THREAD IN |
| Distance From Serrated Portion to Stud End | 0.545 INCHES MINIMUM AND 0.575 INCHES MAXIMUM IN |
| Locking Feature | RING, LOCK SERRATED |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 18 STUD THREAD |
| Thread Quantity Per Inch | 28 NUT THREAD |
| Material | STEEL COMP 4130 |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 70250-13701-101 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5307-01-500-4561 is a Stud,locked in, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-500-4561 has 1 manufacturer part number on file: 70250-13701-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 70250-13701-101: Surface Treatment Document and Classification: QQ-P-416;TYPE 2;CLASS 3 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: 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM NUT THREAD IN; Thread Length: 0.375 INCHES MINIMUM AND 0.405 INCHES MAXIMUM STUD THREAD IN. 20 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.