The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-107-3681, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is St Engineering Land Systems Ltd. Div Kinetics Design Manufacturing. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 — Fastening Devices (FSG 53) |
| Manufacturers | St Engineering Land Systems Ltd. Div Kinetics Design Manufacturing (CAGE Q0091); Southco Gmbh (CAGE C7301) |
| Parameter | Value |
|---|---|
| NSN | 5325-01-107-3681 |
| Primary Part Number | 85-11-400-16 |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | St Engineering Land Systems Ltd. Div Kinetics Design Manufacturing |
| 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 |
|---|---|
| 85-11-400-16 | St Engineering Land Systems Ltd. Div Kinetics Design Manufacturing (SGP) |
| 85-11-400-16 | Southco Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| SS399-1-18-A | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 639547-040 | 5/9 Secondary reference U.S. Government activity |
| SC-D-931590-18 | 5/9 Secondary reference U.S. Government activity |
| SS399-A-18 | 5/9 Secondary reference U.S. Government activity |
| 2438950-1 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems |
| 85-11-400-16 | 3/2 Design control — primary reference U.S. Government activity |
| 85-11-400-16 | 5/9 Secondary reference M W Fasteners Co |
| 10555345 | 5/9 Secondary reference General Dynamics Land Systems Canadacorp |
NSN 5325-01-107-3681 is a Stud,turnlock Fastener, manufactured by St Engineering Land Systems Ltd. Div Kinetics Design Manufacturing, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-107-3681 has 2 manufacturer part numbers on file: 85-11-400-16 (St Engineering Land Systems Ltd. Div Kinetics Design Manufacturing), 85-11-400-16 (Southco Gmbh).
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.