The Bumper, cataloged under National Stock Number 5340-01-434-1392, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Armatec Survivability Corp Div Armatec Survivability. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-434-1392 |
| Primary Part Number | HW21949 |
| Item Name | Bumper |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Armatec Survivability Corp Div Armatec Survivability |
| Status | ACTIVE |
| Outside/top Flange Diameter | 0.937 INCHES NOMINAL IN |
| Style Designator | FLAT TOP COUNTERBORED |
| First Counterbore Depth | 0.187 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE-STYRENE CLASS SBR |
| Hole Diameter | 0.187 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 |
|---|---|
| HW21949 | Armatec Survivability Corp Div Armatec Survivability (CAN) |
| Reference | Meaning |
|---|---|
| 723 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-434-1392 is a Bumper, manufactured by Armatec Survivability Corp Div Armatec Survivability, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-434-1392 has 1 manufacturer part number on file: HW21949 (Armatec Survivability Corp Div Armatec Survivability).
Key specifications for HW21949: Overall Height: 0.374 INCHES NOMINAL IN; Outside/top Flange Diameter: 0.937 INCHES NOMINAL IN; Style Designator: FLAT TOP COUNTERBORED; First Counterbore Depth: 0.187 INCHES NOMINAL IN. 5 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.