The Receptacle,turnlock Fastener, cataloged under National Stock Number 5325-00-151-7105, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5325-00-151-7105 |
| Primary Part Number | GR520AF4-7-3 |
| Item Name | Receptacle,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Receptacle Overall Length | 1.012 INCHES NOMINAL IN |
| Receptacle Thread Size and Series/type Designator | 0.164-32 UNIFIED NATIONAL COARSE (UNC) |
| Surface Treatment Document and Classification | QQ-P-416 TY 1 CL 3 FED SPEC SINGLE TREATMENT RESPONSE STUD |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE RECEPTACLE |
| Center to Center Distance Between Mounting Holes | 0.750 INCHES NOMINAL IN |
| Mounting Style | PLAIN W/MOUNTING HOLE |
| Material Document and Classification | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE STUD |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE RECEPTACLE |
| Turnlock Receptacle Style | RECEPTACLE |
| Receptacle Width | 0.410 INCHES NOMINAL IN |
| Turnlock Mounting Hole Diameter | 0.098 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM STUD |
| Surface Treatment | CADMIUM RECEPTACLE |
| Receptacle Height | 0.520 INCHES NOMINAL IN |
| Material | STEEL COMP 8740 STUD |
| Material | STEEL COMP 1050 RECEPTACLE |
| 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 |
|---|---|
| GR520AF4-7-3 | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| GR520AF4-7-3 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| GR520AF4-7-3 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1950-4-7-3 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 1950-4-7-3 | 5/2 Secondary reference U.S. Government activity |
NSN 5325-00-151-7105 is a Receptacle,turnlock Fastener, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-151-7105 has 3 manufacturer part numbers on file: GR520AF4-7-3 (Howmet Global Fastening Systems Inc. Div Voi-Shan Products), GR520AF4-7-3 (Sps Technologies, Llc Dba PB Fasteners), GR520AF4-7-3 (Northrop Grumman Systems Corporation).
Key specifications for GR520AF4-7-3: Receptacle Overall Length: 1.012 INCHES NOMINAL IN; Receptacle Thread Size and Series/type Designator: 0.164-32 UNIFIED NATIONAL COARSE (UNC); Surface Treatment Document and Classification: QQ-P-416 TY 1 CL 3 FED SPEC SINGLE TREATMENT RESPONSE STUD; Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE RECEPTACLE. 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.