The Rotor,valve, cataloged under National Stock Number 4320-00-403-0889, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-403-0889 |
| Item Name | Rotor,valve |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL; CONFIGURATION-GROOVED CYLINDER W/FLANGED END; FLANGE PERIPHERY HAS 2 FLUID END CONNECTIONS-THREADED INTERNAL PIPE NPT 0.500-14; FLANGE FACE HAS 2 THREADED INTERNAL PORTS UNF 0.500-20 AND 4 UNC 0.437-14 RH 2B MOUNTING HOLES EQUALLY SPACED ON 2.475 IN. DIA BOLT CIRCLE; 2.375 IN. BODY OD; 3.375 IN. FLANGE OD; 1.482 IN. FLANGE THK; 8.137 IN O/A L IN |
| 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 |
|---|---|
| 729946 | 3/9 Design control — primary reference American Standard Inc Westinghouse Air Brake Co Div |
NSN 4320-00-403-0889 is a Rotor,valve, classified under FSC 4320, Power and Hand Pumps. Status: active.
Key specifications for 4320-00-403-0889: General Characteristics Item Description: STEEL; CONFIGURATION-GROOVED CYLINDER W/FLANGED END; FLANGE PERIPHERY HAS 2 FLUID END CONNECTIONS-THREADED INTERNAL PIPE NPT 0.500-14; FLANGE FACE HAS 2 THREADED INTERNAL PORTS UNF 0.500-20 AND 4 UNC 0.437-14 RH 2B MOUNTING HOLES EQUALLY SPACED ON 2.475 IN. DIA BOLT CIRCLE; 2.375 IN. BODY OD; 3.375 IN. FLANGE OD; 1.482 IN. FLANGE THK; 8.137 IN O/A L IN. 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.