The Bumper, cataloged under National Stock Number 5340-00-079-6009, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-079-6009 |
| Primary Part Number | GB505D1 |
| Item Name | Bumper |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Second Counterbore Depth | 0.066 INCHES NOMINAL IN |
| Outside/top Flange Diameter | 1.060 INCHES NOMINAL IN |
| Material Hardness Rating | 55.0 DUROMETER MINIMUM AND 65.0 DUROMETER MAXIMUM |
| Hole Depth | 0.334 INCHES NOMINAL IN |
| First Counterbore Diameter | 0.387 INCHES NOMINAL IN |
| Style Designator | FLAT TOP COUNTERBORED |
| Material Document and Classification | MIL-STD-417, TYPE R, CLASS RS, GRADE RS615 MIL STD SINGLE MATERIAL RESPONSE |
| First Counterbore Depth | 0.440 INCHES NOMINAL IN |
| Color | BLACK |
| Material | RUBBER SYNTHETIC |
| 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 |
NSN 5340-00-079-6009 is a Bumper, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-079-6009 has 3 manufacturer part numbers on file: 97038016 (The Skydyne Company), GB505D1 (Northrop Grumman Systems Corporation), SKM647 (The Skydyne Company).
Key specifications for GB505D1: Second Counterbore Depth: 0.066 INCHES NOMINAL IN; Overall Height: 0.840 INCHES NOMINAL IN; Outside/top Flange Diameter: 1.060 INCHES NOMINAL IN; Material Hardness Rating: 55.0 DUROMETER MINIMUM AND 65.0 DUROMETER MAXIMUM. 11 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.