The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-00-565-5818, 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 17 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-00-565-5818 |
| Primary Part Number | 28S1-5 |
| 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 | 0.150 INCHES MINIMUM AND 0.179 INCHES MAXIMUM IN |
| Diameter | 0.302 INCHES NOMINAL IN |
| Stud Head Height | 0.092 INCHES NOMINAL IN |
| Securing Device Type | WASHER |
| Distance From Engaging Member to Largest Bearing Surface of Head | 0.371 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN |
| Turnlock Stud Head Style | FLAT FILLISTER |
| Surface Treatment | CADMIUM AND CHROMATE STUD |
| Surface Treatment | CADMIUM AND CHROMATE PIN |
| Surface Treatment | CADMIUM AND CHROMATE OR PASSIVATE WASHER |
| Material | STEEL COMP 4037 STUD |
| Material | STEEL PIN |
| Material | STEEL COMP 1009 EYELET |
| Material | STEEL OR STEEL COMP 305 OR STEEL COMP 304 OR STEEL COMP 302 WASHER |
| 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 |
|---|---|
| 28S1-5 | Aero Stock (FRA) |
| 28S1-5 PRIMARY | Howmet Global Fastening Systems Inc Div Camloc Products (USA) |
| 100-33226-4 | Us Army Aviation and Missile Command (USA) |
| 28S1-5 | Fairchild Fasteners Europe - Camloc Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| 10119134 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5325-00-565-5818 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 5325-00-565-5818 has 4 manufacturer part numbers on file: 28S1-5 (Aero Stock), 28S1-5 (Howmet Global Fastening Systems Inc Div Camloc Products), 100-33226-4 (Us Army Aviation and Missile Command), 28S1-5 (Fairchild Fasteners Europe - Camloc Gmbh).
Key specifications for 28S1-5: Eyelet Outside Diameter: 0.519 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN; Drive Type: SLOTTED; Material Accommodated Thickness: 0.150 INCHES MINIMUM AND 0.179 INCHES MAXIMUM IN; Diameter: 0.302 INCHES NOMINAL IN. 17 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.