The Stud,shouldered and Stepped, cataloged under National Stock Number 5307-01-050-8218, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 19 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 | 5307-01-050-8218 |
| Primary Part Number | 6876030-4 |
| Item Name | Stud,shouldered and Stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES SHOULDER BEARING SURFACE |
| Nut End Shank Diameter | 0.250 INCHES NOMINAL IN |
| Thread Length | 0.395 INCHES MINIMUM AND 0.421 INCHES MAXIMUM STUD THREAD IN |
| Thread Length | 0.695 INCHES MINIMUM NUT THREAD IN |
| Criticality Code Justification | FEAT |
| Style Designator | SHOULDERED AND STEPPED |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.250 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.500 INCHES STUD THREAD IN |
| Shoulder Diameter | 0.875 INCHES NOMINAL IN |
| Stud End Shank Diameter | 0.416 INCHES NOMINAL IN |
| Nut End Shank Length | 0.125 INCHES MAXIMUM IN |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 16 STUD THREAD |
| Thread Quantity Per Inch | 28 NUT THREAD |
| Shoulder Length | 0.064 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) 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 | Y |
| Part Number | Manufacturer |
|---|---|
| 6876030-4 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
NSN 5307-01-050-8218 is a Stud,shouldered and Stepped, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-050-8218 has 1 manufacturer part number on file: 6876030-4 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 6876030-4: Surface Finish: 32.0 MICROINCHES SHOULDER BEARING SURFACE; Nut End Shank Diameter: 0.250 INCHES NOMINAL IN; Thread Length: 0.395 INCHES MINIMUM AND 0.421 INCHES MAXIMUM STUD THREAD IN; Thread Length: 0.695 INCHES MINIMUM NUT THREAD IN. 19 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.