The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-438-8449, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-01-438-8449 |
| Primary Part Number | 860140-156 |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Turnlock Stud Shank Style | STUD SHANK |
| Extension Length | 0.626 INCHES NOMINAL IN |
| Diameter | 0.204 INCHES NOMINAL IN |
| Stud Head Height | 0.060 INCHES NOMINAL IN |
| Turnlock Stud Head Style | FLAT FILLISTER |
| Stud Shank Major Diameter | 0.373 INCHES NOMINAL IN |
| Material | STEEL COMP 303 BARREL |
| Grip Length | 0.626 INCHES MINIMUM AND 0.718 INCHES MAXIMUM IN |
| 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 |
|---|---|
| CA1762-6C | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| 860140-156 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| 860140-156 | 5/9 Secondary reference Litton Systems Inc. Div Navigation Systems Division |
NSN 5325-01-438-8449 is a Stud,turnlock Fastener, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-438-8449 has 2 manufacturer part numbers on file: CA1762-6C (Howmet Global Fastening Systems Inc. Div Tridair Products), 860140-156 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
Key specifications for 860140-156: Turnlock Stud Shank Style: STUD SHANK; Extension Length: 0.626 INCHES NOMINAL IN; Diameter: 0.204 INCHES NOMINAL IN; Stud Head Height: 0.060 INCHES NOMINAL IN. 8 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.