The Bellows,protection, cataloged under National Stock Number 5342-01-266-3997, is classified within Federal Supply Class 5342 (Hardware, Weapon System) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5342-01-266-3997 |
| Primary Part Number | 12283790-1 |
| Item Name | Bellows,protection |
| FSC / FSG | 5342 / 53 — Hardware, Weapon System |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Extended Length | 13.440 INCHES MINIMUM AND 13.680 INCHES MAXIMUM IN |
| Large End Inside Diameter | 1.090 INCHES MINIMUM AND 1.120 INCHES MAXIMUM IN |
| Material Document and Classification | ZZ-R-765, CLASS 3, GRADE 50 FED SPEC SINGLE MATERIAL RESPONSE |
| End Inside Diameter | 0.620 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Material | RUBBER SILICONE |
| Thickness | 0.060 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12283790-1 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 5320012663997 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 5342-01-266-3997 is a Bellows,protection, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5342, Hardware, Weapon System. Status: active.
NSN 5342-01-266-3997 has 1 manufacturer part number on file: 12283790-1 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12283790-1: Extended Length: 13.440 INCHES MINIMUM AND 13.680 INCHES MAXIMUM IN; Large End Inside Diameter: 1.090 INCHES MINIMUM AND 1.120 INCHES MAXIMUM IN; Material Document and Classification: ZZ-R-765, CLASS 3, GRADE 50 FED SPEC SINGLE MATERIAL RESPONSE; End Inside Diameter: 0.620 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN. 6 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.