The Grommet,metallic, cataloged under National Stock Number 5325-00-641-0403, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-641-0403 |
| Item Name | Grommet,metallic |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Flange Outside Diameter | 0.835 INCHES MINIMUM AND 0.845 INCHES MAXIMUM IN |
| Barrel Largest Outside Diameter | 0.485 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN |
| Washer Style | SINGLE ROW TOOTHED |
| Nondefinitive Spec/std Data | 2 TYPE AND 7 CLASS AND 2J SIZE |
| Color | BLACK OVERALL |
| Surface Treatment | ENAMEL OVERALL |
| Barrel Outside Diameter | 0.421 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 260 OR COPPER ALLOY 268 OVERALL |
| Flange Style | FLANGE |
| Barrel Style | TAPERED ROUND TYPE |
| Barrel Height | 0.255 INCHES MINIMUM AND 0.265 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 |
| Reference | Meaning |
|---|---|
| MILG16491 | 5/9 Secondary reference U.S. Government activity |
| NASM16491TY | 3/2 Design control — primary reference U.S. Government activity |
| M16491/1-2174B | 5/1 Secondary reference U.S. Government activity |
NSN 5325-00-641-0403 is a Grommet,metallic, classified under FSC 5325, Fastening Devices. Status: active.
Key specifications for 5325-00-641-0403: Flange Outside Diameter: 0.835 INCHES MINIMUM AND 0.845 INCHES MAXIMUM IN; Barrel Largest Outside Diameter: 0.485 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN; Washer Style: SINGLE ROW TOOTHED; Nondefinitive Spec/std Data: 2 TYPE AND 7 CLASS AND 2J SIZE. 11 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.