The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-339-4179, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Div Tridair Products. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-01-339-4179 |
| Primary Part Number | 26S51-26 |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Drive Type | CROSS RECESS |
| Material Accommodated Thickness | 0.780 INCHES MINIMUM AND 0.809 INCHES MAXIMUM IN |
| Turnlock Stud Shank Style | STUD SHANK |
| Diameter | 0.298 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN |
| Securing Device Type | SPRING |
| Stud Shank Major Diameter | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| 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 |
|---|---|
| 26S51-26 | Howmet Global Fastening Systems Inc Div Camloc Products (USA) |
| 26S51-26 PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| Reference | Meaning |
|---|---|
| 012-4961-260 | 7/2 Vendor item drawing reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
NSN 5325-01-339-4179 is a Stud,turnlock Fastener, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-339-4179 has 2 manufacturer part numbers on file: 26S51-26 (Howmet Global Fastening Systems Inc Div Camloc Products), 26S51-26 (Howmet Global Fastening Systems Inc. Div Tridair Products).
Key specifications for 26S51-26: Drive Type: CROSS RECESS; Material Accommodated Thickness: 0.780 INCHES MINIMUM AND 0.809 INCHES MAXIMUM IN; Turnlock Stud Shank Style: STUD SHANK; Diameter: 0.298 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN. 7 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.