The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-01-150-0127, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 26 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-150-0127 |
| Primary Part Number | DRB7500-8-A-5 |
| Item Name | Stud Assembly,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE STUD |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 1,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE HEAD |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE EJECTOR SPRING |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 1,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE EYELET |
| Eyelet Outside Diameter | 0.253 INCHES MINIMUM AND 0.263 INCHES MAXIMUM IN |
| Drive Type | KNURLED |
| Material Accommodated Thickness | 0.071 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE HEAD |
| Material Document and Classification | ASTM A 493 ASSN STD SINGLE MATERIAL RESPONSE STUD |
| Material Document and Classification | QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE EYELET |
| Material Document and Classification | QQ-W-423,COND B FED SPEC SINGLE MATERIAL RESPONSE EJECTOR SPRING |
| Diameter | 0.405 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN |
| Stud Head Height | 0.480 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Distance From Engaging Member to Largest Bearing Surface of Head | 1.005 INCHES NOMINAL IN |
| Turnlock Stud Head Style | KNURLED |
| Surface Treatment | PASSIVATE STUD |
| Surface Treatment | ANODIZE HEAD |
| Surface Treatment | ANODIZE EYELET |
| Surface Treatment | PASSIVATE EJECTOR SPRING |
| Material | ALUMINUM ALLOY 6061 EYELET |
| Material | STEEL COMP 302 EJECTOR SPRING |
| Material | ALUMINUM ALLOY 6061 HEAD |
| Material | STEEL COMP 303 STUD |
| Stud Thread Size and Series/type Designator | 0.164-32 UNF |
| Stud Assembly Style | STUD ASSEMBLY |
| Eyelet Length | 0.370 INCHES MINIMUM AND 0.400 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 |
|---|---|
| DRB7500-8-A-5 PRIMARY | Huck International, Inc (USA) |
| FT1600-8-1-5 PRIMARY | Fastener Technology Corp (USA) |
| Reference | Meaning |
|---|---|
| DRB7500-8-A-5 | 5/9 Secondary reference U.S. Government activity |
| 331126-39 | 5/9 Secondary reference Raytheon Company Div Corp |
| 331126-39 | 7/2 Vendor item drawing reference Raytheon Company Dba Raytheon Co |
NSN 5325-01-150-0127 is a Stud Assembly,turnlock Fastener, manufactured by Huck International, Inc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-150-0127 has 2 manufacturer part numbers on file: DRB7500-8-A-5 (Huck International, Inc), FT1600-8-1-5 (Fastener Technology Corp).
Key specifications for DRB7500-8-A-5: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE STUD; Surface Treatment Document and Classification: MIL-A-8625,TYPE 1,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE HEAD; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE EJECTOR SPRING; Surface Treatment Document and Classification: MIL-A-8625,TYPE 1,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE EYELET. 26 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.