The Bellows,protection, cataloged under National Stock Number 5340-00-371-4140, 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 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-00-371-4140 |
| Primary Part Number | A323055 |
| Item Name | Bellows,protection |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Small End Inside Diameter | 0.344 INCHES NOMINAL IN |
| Large End Inside Diameter | 1.062 INCHES NOMINAL IN |
| Large End Outside Diameter | 1.312 INCHES NOMINAL IN |
| Small End Outside Diameter | 0.562 INCHES NOMINAL IN |
| Neutral Length | 2.219 INCHES NOMINAL IN |
| End Outside Length | 0.188 INCHES NOMINAL IN |
| Thickness at Both Ends | 0.109 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Thickness Between Ends | 0.035 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| End Inside Length | 0.188 INCHES NOMINAL IN |
| 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 |
|---|---|
| A323055 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 103684H | 5/9 Secondary reference U.S. Government activity |
NSN 5340-00-371-4140 is a Bellows,protection, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-371-4140 has 1 manufacturer part number on file: A323055 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for A323055: Small End Inside Diameter: 0.344 INCHES NOMINAL IN; Large End Inside Diameter: 1.062 INCHES NOMINAL IN; Large End Outside Diameter: 1.312 INCHES NOMINAL IN; Small End Outside Diameter: 0.562 INCHES NOMINAL IN. 10 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.