The Cylinder Sleeve and Piston Assem, cataloged under National Stock Number 4310-01-515-4056, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Bauer Compressors, Inc.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4310-01-515-4056 |
| Primary Part Number | N20907 |
| Item Name | Cylinder Sleeve and Piston Assem |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Bauer Compressors, Inc. |
| Status | ACTIVE |
| Style Designator | WET, RELIEVED, THREE SEAL GROOVES |
| 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 |
|---|---|
| N20907 PRIMARY | Bauer Compressors, Inc. (USA) |
| Reference | Meaning |
|---|---|
| MNL-0331 VT26-E3 ITEM 7 PAGE 37 | 5/1 Secondary reference Bauer Compressors, Inc. |
NSN 4310-01-515-4056 is a Cylinder Sleeve and Piston Assem, manufactured by Bauer Compressors, Inc., classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-515-4056 has 1 manufacturer part number on file: N20907 (Bauer Compressors, Inc.).
Key specifications for N20907: Style Designator: WET, RELIEVED, THREE SEAL GROOVES; Special Features: SECOND STAVE PISTON AND CYLINDER ASSY; End Item Identification: HIGH PRESSURE AIR COMPRESSOR UNIT. 1 specification is 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.