The Bumper, cataloged under National Stock Number 5340-00-646-8318, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 9 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-646-8318 |
| Primary Part Number | 9091222 |
| Item Name | Bumper |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Shank Diameter | 1.245 INCHES MINIMUM AND 1.249 INCHES MAXIMUM IN |
| Outside/top Flange Diameter | 1.4860 INCHES MINIMUM AND 1.5014 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-26074, CLASS 4, GRADE B MIL SPEC SINGLE TREATMENT RESPONSE |
| Hole Depth | 0.750 INCHES NOMINAL IN |
| Shank Length | 1.750 INCHES NOMINAL IN |
| Material Document and Classification | ASTM A108, GRADE 1018 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A576, GRADE 1018 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-S-8690 MIL SPEC SINGLE MATERIAL RESPONSE |
| Surface Treatment | NICKEL |
| Material | STEEL COMP 1018 |
| Hole Diameter | 0.382 INCHES MINIMUM AND 0.383 INCHES MAXIMUM 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 |
|---|---|
| 9091222 PRIMARY | Us Army Aviation and Missile Command (USA) |
NSN 5340-00-646-8318 is a Bumper, manufactured by Us Army Aviation and Missile Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-646-8318 has 1 manufacturer part number on file: 9091222 (Us Army Aviation and Missile Command).
Key specifications for 9091222: Shank Diameter: 1.245 INCHES MINIMUM AND 1.249 INCHES MAXIMUM IN; Overall Height: 2.000 INCHES NOMINAL IN; Outside/top Flange Diameter: 1.4860 INCHES MINIMUM AND 1.5014 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-C-26074, CLASS 4, GRADE B MIL SPEC SINGLE TREATMENT RESPONSE. 9 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.