The Grommet,nonmetallic, cataloged under National Stock Number 5325-01-440-2178, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-440-2178 |
| Primary Part Number | 12421402 |
| Item Name | Grommet,nonmetallic |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Small Flange Outside Diameter | 0.860 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN |
| Large Flange Outside Diameter | 1.210 INCHES MINIMUM AND 1.230 INCHES MAXIMUM IN |
| Groove Outside Diameter | 0.620 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN |
| Grommet Construction Type | SOLID |
| Material | RUBBER OVERALL |
| Groove Width | 0.120 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Hole Diameter | 0.340 INCHES MINIMUM AND 0.390 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 |
| Part Number | Manufacturer |
|---|---|
| 12421402 | Oshkosh Defense Llc (USA) |
| 12421402 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| HB-1140 PRIMARY | Trw Inc Replacement Parts Div (USA) |
| 12421402 | Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc (USA) |
| 12421402 | Amz Alabama Inc. (USA) |
| Reference | Meaning |
|---|---|
| 12421402 | 5/9 Secondary reference Oshkosh Corp |
NSN 5325-01-440-2178 is a Grommet,nonmetallic, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-440-2178 has 5 manufacturer part numbers on file: 12421402 (Oshkosh Defense Llc), 12421402 (U S Army Tank Automotive Command Amsta-Im-Mm), HB-1140 (Trw Inc Replacement Parts Div), 12421402 (Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc), 12421402 (Amz Alabama Inc.).
Key specifications for 12421402: Overall Height: 0.870 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN; Small Flange Outside Diameter: 0.860 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN; Large Flange Outside Diameter: 1.210 INCHES MINIMUM AND 1.230 INCHES MAXIMUM IN; Groove Outside Diameter: 0.620 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN. 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.