The Bumper, cataloged under National Stock Number 5340-01-203-8675, is classified within Federal Supply Class 5340 (Hardware, Commercial) 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 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-203-8675 |
| Primary Part Number | 12339391 |
| Item Name | Bumper |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Outside/top Flange Diameter | 1.062 INCHES NOMINAL IN |
| Material Hardness Rating | 60.0 DUROMETER NOMINAL |
| First Counterbore Diameter | 0.375 INCHES NOMINAL IN |
| Style Designator | FLAT TOP COUNTERBORED |
| First Counterbore Depth | 0.438 INCHES NOMINAL IN |
| Material | RUBBER |
| Hole Diameter | 0.188 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| ZB-1079M.1. | Minor Rubber Co Inc (USA) |
| 12339391 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 5579257 | Am General Llc (USA) |
| Reference | Meaning |
|---|---|
| 9320PL0797464 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5340-01-203-8675 is a Bumper, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-203-8675 has 3 manufacturer part numbers on file: ZB-1079M.1. (Minor Rubber Co Inc), 12339391 (U S Army Tank Automotive Command Amsta-Im-Mm), 5579257 (Am General Llc).
Key specifications for 12339391: Overall Height: 0.844 INCHES NOMINAL IN; Outside/top Flange Diameter: 1.062 INCHES NOMINAL IN; Material Hardness Rating: 60.0 DUROMETER NOMINAL; First Counterbore Diameter: 0.375 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.