The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-00-620-6477, 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 Camloc Products. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5325-00-620-6477 |
| Primary Part Number | 28S1-7 |
| Item Name | Stud Assembly,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc Div Camloc Products |
| Status | ACTIVE |
| Eyelet Outside Diameter | 0.519 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN |
| Drive Type | SLOTTED |
| Material Accommodated Thickness | 0.210 INCHES MINIMUM AND 0.239 INCHES MAXIMUM IN |
| Diameter | 0.489 INCHES MINIMUM AND 0.511 INCHES MAXIMUM IN |
| Stud Head Height | 0.174 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN |
| Securing Device Type | WASHER |
| Distance From Engaging Member to Largest Bearing Surface of Head | 0.431 INCHES MINIMUM AND 0.441 INCHES MAXIMUM IN |
| Turnlock Stud Head Style | FLAT FILLISTER |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Material | STEEL OVERALL |
| Stud Assembly Style | STUD ASSEMBLY |
| Stud Diameter | 0.124 INCHES MINIMUM AND 0.130 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 |
|---|---|
| 28S1-7 | Fairchild Fasteners Europe - Camloc Gmbh (DEU) |
| 28S1-7 PRIMARY | Howmet Global Fastening Systems Inc Div Camloc Products (USA) |
| 100-33226-6 | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 2133475G5 | 5/9 Secondary reference Itt Industries Inc Itt Aerospace Communications Div East |
| 2133475G6 | 5/9 Secondary reference Itt Industries Inc Itt Aerospace Communications Div East |
NSN 5325-00-620-6477 is a Stud Assembly,turnlock Fastener, manufactured by Howmet Global Fastening Systems Inc Div Camloc Products, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-620-6477 has 3 manufacturer part numbers on file: 28S1-7 (Fairchild Fasteners Europe - Camloc Gmbh), 28S1-7 (Howmet Global Fastening Systems Inc Div Camloc Products), 100-33226-6 (Us Army Aviation and Missile Command).
Key specifications for 28S1-7: Eyelet Outside Diameter: 0.519 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN; Drive Type: SLOTTED; Material Accommodated Thickness: 0.210 INCHES MINIMUM AND 0.239 INCHES MAXIMUM IN; Diameter: 0.489 INCHES MINIMUM AND 0.511 INCHES MAXIMUM IN. 12 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.