The Stud,shouldered and Stepped, cataloged under National Stock Number 5307-00-877-3478, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-877-3478 |
| Primary Part Number | 6808557 |
| Item Name | Stud,shouldered and Stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Nut End Shank Diameter | 0.309 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Thread Length | 0.562 INCHES NOMINAL STUD THREAD IN |
| Thread Length | 0.460 INCHES NOMINAL NUT THREAD IN |
| Material Document and Classification | AMS 5643 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 | 0.312 INCHES STUD THREAD IN |
| Shoulder Diameter | 0.500 INCHES NOMINAL IN |
| Nut End Shank Length | 0.250 INCHES NOMINAL IN |
| Thread Class | 3A NUT THREAD A |
| Thread Class | 3A STUD THREAD A |
| Thread Quantity Per Inch | 24 STUD THREAD |
| Thread Quantity Per Inch | 28 NUT THREAD |
| Material | STEEL |
| Shoulder Length | 0.375 INCHES NOMINAL IN |
| Thread Series Designator | UNF STUD THREAD |
| Thread Series Designator | UNF NUT THREAD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5307-00-877-3478 is a Stud,shouldered and Stepped, manufactured by Rolls-Royce Corporation, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-877-3478 has 2 manufacturer part numbers on file: 6808557 (Rolls-Royce Corporation), 6808557 (General Motors Corp).
Key specifications for 6808557: Nut End Shank Diameter: 0.309 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN; Thread Length: 0.562 INCHES NOMINAL STUD THREAD IN; Thread Length: 0.460 INCHES NOMINAL NUT THREAD IN; Material Document and Classification: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE. 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.