The Receptacle,turnlock Fastener, cataloged under National Stock Number 5325-01-178-0124, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 8 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-178-0124 |
| Primary Part Number | 1670AS182 |
| Item Name | Receptacle,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625 TYPE 2, CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE BARREL |
| Center to Center Distance Between Mounting Holes | 0.750 INCHES NOMINAL IN |
| Mounting Style | PLAIN W/MOUNTING HOLE |
| Turnlock Receptacle Style | RECEPTACLE |
| Receptacle Width | 0.500 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE BARREL |
| Receptacle Height | 0.430 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY BARREL |
| 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 |
|---|---|
| 1670AS182 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 03A090-2 | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| 5718-FA4-ACNC PRIMARY | Southco Inc (USA) |
| 03A090-2 | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| Reference | Meaning |
|---|---|
| URF4-3 | 5/9 Secondary reference Southco Inc |
| HS5307-0420 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| HS5307-0420 | 7/1 Vendor item drawing reference The Boeing Company |
| URFA4 | 5/9 Secondary reference Southco Inc |
NSN 5325-01-178-0124 is a Receptacle,turnlock Fastener, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-178-0124 has 4 manufacturer part numbers on file: 1670AS182 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 03A090-2 (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems), 5718-FA4-ACNC (Southco Inc), 03A090-2 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems).
Key specifications for 1670AS182: Surface Treatment Document and Classification: MIL-A-8625 TYPE 2, CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE BARREL; Center to Center Distance Between Mounting Holes: 0.750 INCHES NOMINAL IN; Mounting Style: PLAIN W/MOUNTING HOLE; Turnlock Receptacle Style: RECEPTACLE. 8 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.