The Bumper, cataloged under National Stock Number 5340-00-321-4664, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-00-321-4664 |
| Item Name | Bumper |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Outside/top Flange Diameter | 1.500 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN |
| Material Hardness Rating | 35.0 SHORE DUROMETER A MINIMUM AND 45.0 SHORE DUROMETER A MAXIMUM |
| First Counterbore Diameter | 0.450 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-R-6855, CLASS 2, GRADE 40 MIL SPEC SINGLE MATERIAL RESPONSE |
| First Counterbore Depth | 1.000 INCHES NOMINAL IN |
| Color | RED AND ORANGE |
| Material | RUBBER |
| Hole Diameter | 0.156 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 |
| Reference | Meaning |
|---|---|
| 7334900-01 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5340-00-321-4664 is a Bumper, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-00-321-4664: Overall Height: 1.500 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN; Outside/top Flange Diameter: 1.500 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN; Material Hardness Rating: 35.0 SHORE DUROMETER A MINIMUM AND 45.0 SHORE DUROMETER A MAXIMUM; First Counterbore Diameter: 0.450 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN. 8 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.