The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-01-338-2887, 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 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-01-338-2887 |
| Primary Part Number | 27S12-5-1BB |
| 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 | 0.247 INCHES NOMINAL IN |
| Drive Type | SLOTTED |
| Material Accommodated Thickness | 0.150 INCHES MINIMUM AND 0.179 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE EYELET |
| Material Document and Classification | QQ-C-530 FED SPEC SINGLE MATERIAL RESPONSE STUD |
| Diameter | 0.251 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN |
| Stud Head Height | 0.069 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN |
| Distance From Engaging Member to Largest Bearing Surface of Head | 0.542 INCHES NOMINAL IN |
| Turnlock Stud Head Style | STUD HEAD |
| Surface Treatment | PASSIVATE EYELET |
| Material | COBALT ALLOY PIN |
| Material | STEEL COMP 305 EYELET |
| Material | COBALT ALLOY EJECTOR SPRING |
| Material | COPPER ALLOY 172 STUD |
| Stud Assembly Style | STUD ASSEMBLY |
| Eyelet Length | 0.328 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 |
|---|---|
| 27S12-5-1BB | Howmet Global Fastening Systems Inc Div Camloc Products (USA) |
| Reference | Meaning |
|---|---|
| BACS21Y5BC | 3/2 Design control — primary reference U.S. Government activity |
NSN 5325-01-338-2887 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 5325-01-338-2887 has 1 manufacturer part number on file: 27S12-5-1BB (Howmet Global Fastening Systems Inc Div Camloc Products).
Key specifications for 27S12-5-1BB: Eyelet Outside Diameter: 0.247 INCHES NOMINAL IN; Drive Type: SLOTTED; Material Accommodated Thickness: 0.150 INCHES MINIMUM AND 0.179 INCHES MAXIMUM IN; Material Document and Classification: QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE EYELET. 16 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.