The Pump Unit,centrifugal, cataloged under National Stock Number 4320-00-934-7901, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec. Government technical data includes 23 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-934-7901 |
| Primary Part Number | 2533E |
| Item Name | Pump Unit,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Phase | THREE |
| Intake Connection Type | THREADED INTERNAL |
| Frequency in Hertz | 400.0 |
| Inclosure Type | FULLY INCLOSED |
| Current Type | AC/DC |
| Pumping Element Operating Position | HORIZONTAL |
| Centrifugal Pump Impeller Quantity | 1 |
| Voltage in Volts | 120.0 AND 208.0 |
| Prime Mover Quantity | 1 |
| Centrifugal Pump Impeller Suction Type | SINGLE |
| Pump Quantity | 1 |
| Features Provided | SELF-PRIMING |
| Discharge Connection Thread Size and Series/type Designator | 1.062-12 UN |
| Intake Connection Thread Size and Series/type Designator | 1.312-12 UN |
| Stage Quantity | 1 |
| Discharge Pressure | 5.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING SILICA FUME |
| Maximum Discharge Flow Rate | 12.0 GALLONS PER MINUTE |
| Discharge Connection Type | THREADED INTERNAL |
| Intake Connection Quantity | 1 |
| Prime Mover Type | ELECTRIC MOTOR |
| Media for Which Designed | WATER, FRESH |
| Centrifugal Pump Design | RADIAL FLOW |
| 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 |
|---|---|
| 2533E PRIMARY | Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec (USA) |
| Reference | Meaning |
|---|---|
| 9221-4 | 3/2 Design control — primary reference U.S. Government activity |
| 13217E4052 | 1/2 Source control — Government-approved source U.S. Government activity |
| 9221-2 | 5/2 Secondary reference U.S. Government activity |
| 695935-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4320-00-934-7901 is a Pump Unit,centrifugal, manufactured by Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-934-7901 has 1 manufacturer part number on file: 2533E (Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec).
4 possible matches (shared part number, not a government interchangeability claim): 3110-01-076-2917, 4920-01-300-5752, 4920-01-300-5753. Verify interchangeability with system specifications before substitution.
Key specifications for 2533E: Discharge Connection Quantity: 1; Phase: THREE; Intake Connection Type: THREADED INTERNAL; Frequency in Hertz: 400.0. 23 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.