The Stud,shouldered and Stepped, cataloged under National Stock Number 5307-01-189-8538, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Bae Systems (operations) Limited. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Stud,shouldered and Stepped |
| FSC / FSG | 5307 — Studs (FSG 53) |
| Manufacturers | Bae Systems (operations) Limited (CAGE U9143) |
| Parameter | Value |
|---|---|
| NSN | 5307-01-189-8538 |
| Primary Part Number | 75A667345-2001 |
| Item Name | Stud,shouldered and Stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Bae Systems (operations) Limited |
| Status | ACTIVE |
| 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 |
|---|---|
| 75A667345-2001 | Bae Systems (operations) Limited (GBR) |
| Reference | Meaning |
|---|---|
| 75A667345-2001 | 5/9 Secondary reference Bae Systems Plc |
| 75A667345-2001 | 3/9 Design control — primary reference British Aerospace (military Aircraft & Aerostructures) |
NSN 5307-01-189-8538 is a Stud,shouldered and Stepped, manufactured by Bae Systems (operations) Limited, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-189-8538 has 1 manufacturer part number on file: 75A667345-2001 (Bae Systems (operations) Limited).
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.