The Stud,stepped, cataloged under National Stock Number 5307-00-864-7429, 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 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-864-7429 |
| Primary Part Number | 6860083-721 |
| Item Name | Stud,stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.165 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN |
| Thread Length | 0.375 INCHES MINIMUM NUT THREAD IN |
| Thread Length | 0.500 INCHES MINIMUM STUD THREAD IN |
| Style Designator | STEPPED |
| Thread Pitch Diameters | +0.2243 TO 0.2253 INCHES STUD THREAD IN |
| Material Document and Classification | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.250 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.250 INCHES STUD THREAD IN |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 20 NUT THREAD |
| Thread Quantity Per Inch | 20 STUD THREAD |
| Material | IRON ALLOY 660 |
| Thread Series Designator | UNS 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 |
|---|---|
| 6860083-721 | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| 6860083-721 PRIMARY | Rolls-Royce Corporation (USA) |
NSN 5307-00-864-7429 is a Stud,stepped, manufactured by Rolls-Royce Corporation, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-864-7429 has 2 manufacturer part numbers on file: 6860083-721 (Allison Transmission Inc Dba Allison Transmission, Inc), 6860083-721 (Rolls-Royce Corporation).
Key specifications for 6860083-721: Shank Diameter: 0.165 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN; Thread Length: 0.375 INCHES MINIMUM NUT THREAD IN; Thread Length: 0.500 INCHES MINIMUM STUD THREAD IN; Style Designator: STEPPED. 16 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.