The Bumper, cataloged under National Stock Number 5340-01-522-1891, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Karman Rubber Company (inc). Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-522-1891 |
| Primary Part Number | K175-70 |
| Item Name | Bumper |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Karman Rubber Company (inc) |
| Status | ACTIVE |
| Outside/top Flange Diameter | 50.8 MILLIMETERS NOMINAL MM |
| Shank Length | 28.6 MILLIMETERS NOMINAL MM |
| Style Designator | FLAT RECESSED TOP THREADED STUD |
| Thread Size | 3/8-16 UNC-2A A |
| Material | RUBBER |
| 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 |
|---|---|
| 12485294 | Amz Alabama Inc. (USA) |
| K175-70 PRIMARY | Karman Rubber Company (inc) (USA) |
| Reference | Meaning |
|---|---|
| 12485294 | 7/2 Vendor item drawing reference Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc |
| 12485294 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 5340-01-522-1891 is a Bumper, manufactured by Karman Rubber Company (inc), classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-522-1891 has 2 manufacturer part numbers on file: 12485294 (Amz Alabama Inc.), K175-70 (Karman Rubber Company (inc)).
Key specifications for K175-70: Overall Height: 47.700 MILLIMETERS NOMINAL MM; Outside/top Flange Diameter: 50.8 MILLIMETERS NOMINAL MM; Shank Length: 28.6 MILLIMETERS NOMINAL MM; Style Designator: FLAT RECESSED TOP THREADED STUD. 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.