The Bumper, cataloged under National Stock Number 5340-01-059-7950, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Eaton Corporation Dba Eaton Electrical Group Div Eaton Services & Systems. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-059-7950 |
| Primary Part Number | 1321BW |
| Item Name | Bumper |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Eaton Corporation Dba Eaton Electrical Group Div Eaton Services & Systems |
| Status | ACTIVE |
| Outside/top Flange Diameter | 0.500 INCHES NOMINAL IN |
| Material Hardness Rating | 60.0 DUROMETER MINIMUM AND 70.0 DUROMETER MAXIMUM |
| First Counterbore Diameter | 0.250 INCHES NOMINAL IN |
| Style Designator | FLAT TOP COUNTERBORED |
| First Counterbore Depth | 0.188 INCHES NOMINAL IN |
| Color | BLACK |
| Material | RUBBER BUTADIENE-STYRENE CLASS SBR |
| Hole Diameter | 0.156 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 |
|---|---|
| PC99034-1 | Rockwell Collins, Inc. Dba Rc Displays Systems (USA) |
| 1321BW PRIMARY | Eaton Corporation Dba Eaton Electrical Group Div Eaton Services & Systems (USA) |
| Reference | Meaning |
|---|---|
| 1321BW | 5/9 Secondary reference New Haven Mfg Corp Amatom Electronic Hardware Div |
| 11780717-1 | 7/2 Vendor item drawing reference Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
NSN 5340-01-059-7950 is a Bumper, manufactured by Eaton Corporation Dba Eaton Electrical Group Div Eaton Services & Systems, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-059-7950 has 2 manufacturer part numbers on file: PC99034-1 (Rockwell Collins, Inc. Dba Rc Displays Systems), 1321BW (Eaton Corporation Dba Eaton Electrical Group Div Eaton Services & Systems).
Key specifications for 1321BW: Overall Height: 0.313 INCHES NOMINAL IN; Outside/top Flange Diameter: 0.500 INCHES NOMINAL IN; Material Hardness Rating: 60.0 DUROMETER MINIMUM AND 70.0 DUROMETER MAXIMUM; First Counterbore Diameter: 0.250 INCHES NOMINAL IN. 8 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.