The Bumper, cataloged under National Stock Number 5340-01-109-4015, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Down East, Inc.. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-109-4015 |
| Primary Part Number | 1254 |
| Item Name | Bumper |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Down East, Inc. |
| Status | ACTIVE |
| Outside/top Flange Diameter | 7.680 INCHES NOMINAL IN |
| Material Hardness Rating | 55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM |
| Largest Countersink Diameter | 6.750 INCHES NOMINAL IN |
| Hole Depth | 1.060 INCHES NOMINAL IN |
| Style Designator | FLAT TOP COUNTERSUNK |
| Countersink Depth | 0.500 INCHES NOMINAL IN |
| Material Document and Classification | MIL-R-6855, CLASS 2, GRADE 60 MIL SPEC SINGLE MATERIAL RESPONSE |
| Smallest Countersink Diameter | 6.310 INCHES NOMINAL IN |
| Material | RUBBER |
| Hole Diameter | 3.890 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 |
|---|---|
| 1254 PRIMARY | Down East, Inc. (USA) |
| Reference | Meaning |
|---|---|
| DEI-1254 | 5/9 Secondary reference Down East, Inc. |
NSN 5340-01-109-4015 is a Bumper, manufactured by Down East, Inc., classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-109-4015 has 1 manufacturer part number on file: 1254 (Down East, Inc.).
Key specifications for 1254: Overall Height: 1.560 INCHES NOMINAL IN; Outside/top Flange Diameter: 7.680 INCHES NOMINAL IN; Material Hardness Rating: 55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM; Largest Countersink Diameter: 6.750 INCHES NOMINAL IN. 10 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.