The Insert,panel Fastener, cataloged under National Stock Number 5325-01-160-4070, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 6 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-160-4070 |
| Primary Part Number | 3M225A4 |
| Item Name | Insert,panel Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Shoulder Diameter | 0.370 INCHES MINIMUM AND 0.370 INCHES MINIMUM AND 0.374 INCHES MAXIMUM0.374 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Thread Size and Series/type Designator | 0-250-28 UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | THREADEDTHREADED |
| 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 |
|---|---|
| 3M225A4 | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| SL1966-4 | 5/9 Secondary reference U.S. Government activity |
| SL1966-4 | 5/2 Secondary reference U.S. Government activity |
| F12CL4390-048 | 3/9 Design control — primary reference Harvard Industries Inc |
NSN 5325-01-160-4070 is a Insert,panel Fastener, manufactured by The Boeing Company Div Defense, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-160-4070 has 1 manufacturer part number on file: 3M225A4 (The Boeing Company Div Defense).
Key specifications for 3M225A4: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Length: 0.345 INCHES MINIMUM AND 0.345 INCHES MINIMUM AND 0.351 INCHES MAXIMUM0.351 INCHES MAXIMUM IN; Surface Treatment: CADMIUM AND CHROMATE OVERALL; Shoulder Diameter: 0.370 INCHES MINIMUM AND 0.370 INCHES MINIMUM AND 0.374 INCHES MAXIMUM0.374 INCHES MAXIMUM IN. 6 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.