The Compressor Unit,reciprocating, cataloged under National Stock Number 4310-01-252-1685, 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12 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4310-01-252-1685 |
| Item Name | Compressor Unit,reciprocating |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Status | ACTIVE |
| Phase | THREE |
| Cooling System Design | SINGLE |
| Frequency in Hertz | 60.0 |
| Voltage in Volts and Current Type | 440.0 AC |
| Discharge Pressure | 4500.000 POUNDS PER SQUARE INCH GAGE LBS |
| Compressor Speed at Rated Capacity in RPM | 880.0 |
| Gas for Which Designed | AIR |
| Prime Mover Cooling Medium | AIR |
| Stage Quantity | 4 |
| Compressor Cooling Medium | AIR AND SALT WATER |
| Prime Mover Type | ELECTRIC MOTOR |
| Compressor Quantity | 1 |
| 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 |
|---|---|
| 200134L | 3/9 Design control — primary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 200134L | 5/9 Secondary reference U.S. Government activity |
| 200134L | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
NSN 4310-01-252-1685 is a Compressor Unit,reciprocating, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4820-01-377-3083. Verify interchangeability with system specifications before substitution.
Key specifications for 4310-01-252-1685: Phase: THREE; Cooling System Design: SINGLE; Frequency in Hertz: 60.0; Voltage in Volts and Current Type: 440.0 AC. 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.