The Stud,stepped, cataloged under National Stock Number 5307-00-298-4367, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Rolls-Royce Corporation. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-298-4367 |
| Primary Part Number | ST1263P006 |
| Item Name | Stud,stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.312 INCHES MINIMUM IN |
| Thread Length | 0.625 INCHES MINIMUM STUD THREAD IN |
| Thread Length | 0.531 INCHES MINIMUM NUT THREAD IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Style Designator | STEPPED |
| Thread Pitch Diameters | +0.3414 TO 0.3430 INCHES STUD THREAD IN |
| Material Document and Classification | AMS 6320 ASSN STD SINGLE MATERIAL RESPONSE |
| 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 |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 24 NUT THREAD |
| Thread Quantity Per Inch | 16 STUD THREAD |
| Material | STEEL COMP 8735 |
| Thread Series Designator | UNF 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 |
| Part Number | Manufacturer |
|---|---|
| SR1263P-006 | Rolls-Royce Corporation (USA) |
| ST1263P006 PRIMARY | Rolls-Royce Corporation (USA) |
| ST1263P006 | General Motors Corp (USA) |
| Reference | Meaning |
|---|---|
| ST1263P-006 | 5/9 Secondary reference General Motors Corp |
| SR1263P-006 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
| SR1263P-006 | 5/9 Secondary reference General Motors Corp |
| ST1263P006 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
NSN 5307-00-298-4367 is a Stud,stepped, manufactured by Rolls-Royce Corporation, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-298-4367 has 3 manufacturer part numbers on file: SR1263P-006 (Rolls-Royce Corporation), ST1263P006 (Rolls-Royce Corporation), ST1263P006 (General Motors Corp).
Key specifications for ST1263P006: Shank Diameter: 0.312 INCHES MINIMUM IN; Thread Length: 0.625 INCHES MINIMUM STUD THREAD IN; Thread Length: 0.531 INCHES MINIMUM NUT THREAD IN; Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM. 18 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.