The Insert,panel Fastener, cataloged under National Stock Number 5325-01-331-5903, 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. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5325-01-331-5903 |
| Primary Part Number | 601C4-62-60 |
| Item Name | Insert,panel Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Flange Diameter | 0.562 INCHES NOMINAL0.562 INCHES NOMINAL IN |
| Hole Diameter | 0.256 INCHES NOMINAL0.256 INCHES NOMINAL IN |
| Surface Treatment | CHROMATE OVERALL |
| Insert Style | PROTRUDING FLANGEPROTRUDING FLANGE |
| Material | ALUMINUM ALLOY OVERALL |
| Hole Type | PLAINPLAIN |
| Flange Thickness | 0.025 INCHES NOMINAL0.025 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 |
|---|---|
| 601C4-62-60 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 601C4-62-60 | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Tridair Products |
| 601C4-62-60 | 3/2 Design control — primary reference U.S. Government activity |
| 601C4-62-60 | 5/9 Secondary reference U.S. Government activity |
NSN 5325-01-331-5903 is a Insert,panel Fastener, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-331-5903 has 1 manufacturer part number on file: 601C4-62-60 (Howmet Global Fastening Systems Inc).
Key specifications for 601C4-62-60: Flange Diameter: 0.562 INCHES NOMINAL0.562 INCHES NOMINAL IN; Overall Length: 0.550 INCHES NOMINAL0.550 INCHES NOMINAL IN; Hole Diameter: 0.256 INCHES NOMINAL0.256 INCHES NOMINAL IN; Surface Treatment: CHROMATE OVERALL. 7 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.