The Stud,turnlock Fastener, cataloged under National Stock Number 5325-00-522-0363, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Curtiss-Wright Controls, Inc. Div Actuation Division. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-522-0363 |
| Primary Part Number | 4066D26 |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Curtiss-Wright Controls, Inc. Div Actuation Division |
| Status | ACTIVE |
| Drive Type | SLOTTED |
| Material Accommodated Thickness | 0.251 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Turnlock Stud Shank Style | STUD SHANK |
| Diameter | 0.557 INCHES MINIMUM AND 0.567 INCHES MAXIMUM IN |
| Turnlock Stud Head Style | FILLISTER |
| Stud Shank Major Diameter | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL OVERALL |
| Grip Length | 0.475 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 |
| Part Number | Manufacturer |
|---|---|
| 4066D26 | Curtiss-Wright Controls, Inc. Div Actuation Division (USA) |
| 9752-26-00-0248 | Illinois Tool Works Inc (USA) |
| Reference | Meaning |
|---|---|
| 980S5-26 | 3/9 Design control — primary reference Itw Shakeproof Automotive Products |
| 9752-26-00-0248 | 5/9 Secondary reference Impact Register Inc |
NSN 5325-00-522-0363 is a Stud,turnlock Fastener, manufactured by Curtiss-Wright Controls, Inc. Div Actuation Division, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-522-0363 has 2 manufacturer part numbers on file: 4066D26 (Curtiss-Wright Controls, Inc. Div Actuation Division), 9752-26-00-0248 (Illinois Tool Works Inc).
Key specifications for 4066D26: Drive Type: SLOTTED; Material Accommodated Thickness: 0.251 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Turnlock Stud Shank Style: STUD SHANK; Diameter: 0.557 INCHES MINIMUM AND 0.567 INCHES MAXIMUM IN. 9 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.