The Stud,turnlock Fastener, cataloged under National Stock Number 5325-00-281-9116, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 — Fastening Devices (FSG 53) |
| Manufacturers | Northrop Grumman Systems Corporation (CAGE 26512) |
| Parameter | Value |
|---|---|
| NSN | 5325-00-281-9116 |
| Primary Part Number | GS520B7-22 |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | CANCELLED |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| GS520B7-22 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 6Z3809-32 | 3/2 Design control — primary reference U.S. Government activity |
| 2351-20-24-C3C | 3/1 Design control — primary reference Southco Inc |
| 50-007A22 | 5/2 Secondary reference U.S. Government activity |
| A35T22 | 5/9 Secondary reference Southco Inc |
| 57164-6 | 5/9 Secondary reference Naval Command Control and Ocean Surveillance Center in Service Engineering Div West Coast |
| MIL-F-5591 | 5/9 Secondary reference U.S. Government activity |
| MIL-F-5591 | 3/1 Design control — primary reference U.S. Government activity |
NSN 5325-00-281-9116 is a Stud,turnlock Fastener, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5325, Fastening Devices. Status: cancelled.
NSN 5325-00-281-9116 has 1 manufacturer part number on file: GS520B7-22 (Northrop Grumman Systems Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5325-00-286-2590. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5325-00-281-9116 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.