The Cylinder,reciprocating Compresso, cataloged under National Stock Number 4310-00-959-9756, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-00-959-9756 |
| Item Name | Cylinder,reciprocating Compresso |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Status | ACTIVE |
| Seat Angle in Deg | 45.0 ALL PORTS |
| Bore Length | 4.000 INCHES NOMINAL IN |
| Port Thread Series Designator | UN ALL PORTS |
| Cooling Method | AIR TO AIR COOLED |
| Port Thread Class | 2B ALL PORTS |
| Port Thread Quantity Per Inch | 16 ALL PORTS |
| Port Thread Diameter | 0.875 INCHES NOMINAL ALL PORTS IN |
| Port Location and Quantity | 2 CYLINDER HEAD END |
| Port Style | GASKET SEAL ALL PORTS |
| Bore Diameter | 0.812 INCHES NOMINAL IN |
| Material | ALUMINUM BODY |
| Mounting Type and Location | FLANGE CYLINDER HEAD END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 80430-4 | 3/2 Design control — primary reference U.S. Government activity |
| P80430-4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4310-00-959-9756 is a Cylinder,reciprocating Compresso, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5310-01-155-4318. Verify interchangeability with system specifications before substitution.
Key specifications for 4310-00-959-9756: Overall Height: 5.375 INCHES NOMINAL IN; Seat Angle in Deg: 45.0 ALL PORTS; Bore Length: 4.000 INCHES NOMINAL IN; Port Thread Series Designator: UN ALL PORTS. 12 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.