The Stud,turnlock Fastener, cataloged under National Stock Number 5325-00-164-1180, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-164-1180 |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Head Length | 0.938 INCHES NOMINAL IN |
| Drive Type | SLOTTED |
| Turnlock Stud Shank Style | STUD SHANK |
| Turnlock Stud Head Style | LOOP ON FLAT FILLISTER |
| Stud Shank Major Diameter | 0.250 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL OVERALL |
| Stud Thread Size and Series/type Designator | 0.250-20 UNIFIED NATIONAL COARSE (UNC) |
| Grip Length | 1.125 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| AD66H | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 6000820-3 | 5/9 Secondary reference Gichner Systems Group, Inc. Div C5isr Division |
| 12-99-275-14 | 3/2 Design control — primary reference U.S. Government activity |
| 1339AS239-1 | 7/2 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 6000820-3 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5325-00-164-1180 is a Stud,turnlock Fastener, classified under FSC 5325, Fastening Devices. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5320-00-882-8385, 5320-01-008-8204. Verify interchangeability with system specifications before substitution.
Key specifications for 5325-00-164-1180: Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL; Head Length: 0.938 INCHES NOMINAL IN; Drive Type: SLOTTED; Turnlock Stud Shank Style: STUD SHANK. 10 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.