The Bumper, cataloged under National Stock Number 5340-00-176-0450, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-00-176-0450 |
| Primary Part Number | 11639656 |
| Item Name | Bumper |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Outside/top Flange Diameter | 2.900 INCHES NOMINAL IN |
| Material Hardness Rating | 45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM |
| Shank Length | 1.150 INCHES NOMINAL IN |
| Style Designator | TIPPED THREADED STUD |
| Material Document and Classification | MIL-STD-417, TYPE R, CLASS RS, GRADE RS730ABC1F2K1N MIL STD SINGLE MATERIAL RESPONSE |
| Thread Size | 3/8-16 UNC-2A A |
| Color | BLACK |
| Material | RUBBER SYNTHETIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 11639656 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 5340001760450 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| 5340001760450 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 5340-00-176-0450 is a Bumper, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-176-0450 has 1 manufacturer part number on file: 11639656 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 11639656: Overall Height: 4.700 INCHES NOMINAL IN; Outside/top Flange Diameter: 2.900 INCHES NOMINAL IN; Material Hardness Rating: 45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM; Shank Length: 1.150 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.