The Bumper, cataloged under National Stock Number 5340-01-558-5846, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 6 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-558-5846 |
| Primary Part Number | 9540K34 |
| Item Name | Bumper |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Outside/top Flange Diameter | 1.031 INCHES NOMINAL IN |
| First Counterbore Diameter | 0.562 INCHES NOMINAL IN |
| Style Designator | FLAT TOP COUNTERBORED |
| First Counterbore Depth | 0.250 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC |
| 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 |
|---|---|
| 9540K34 PRIMARY | Mcmaster-Carr Supply Co (USA) |
NSN 5340-01-558-5846 is a Bumper, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-558-5846 has 1 manufacturer part number on file: 9540K34 (Mcmaster-Carr Supply Co).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-579-1758. Verify interchangeability with system specifications before substitution.
Key specifications for 9540K34: Overall Height: 0.625 INCHES NOMINAL IN; Outside/top Flange Diameter: 1.031 INCHES NOMINAL IN; First Counterbore Diameter: 0.562 INCHES NOMINAL IN; Style Designator: FLAT TOP COUNTERBORED. 6 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.