The Valve Assembly,pump, cataloged under National Stock Number 4320-00-446-9850, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Durabla Mfg Co. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-00-446-9850 |
| Primary Part Number | V223-1634 |
| Item Name | Valve Assembly,pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Durabla Mfg Co |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF 1 VALVE BASE,1 VALVE COVER,1 HELICAL SPRING,1 TOP RING,1 THD SHAFT,1 HEX NUT; STEEL O/A; 7.250 IN. LARGEST OD; 4.500 IN. O/A H; BOTTOM END THD EXTERNAL 7.000-8 NPT THD,1.355 IN. THD LG IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4320-00-446-9850 is a Valve Assembly,pump, manufactured by Durabla Mfg Co, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-446-9850 has 2 manufacturer part numbers on file: V223-1634 (Durabla Mfg Co), S6KD650C (Durabla Mfg Co).
1 possible match (shared part number, not a government interchangeability claim): 5130-01-447-2530. Verify interchangeability with system specifications before substitution.
Key specifications for V223-1634: General Characteristics Item Description: CONSISTS OF 1 VALVE BASE,1 VALVE COVER,1 HELICAL SPRING,1 TOP RING,1 THD SHAFT,1 HEX NUT; STEEL O/A; 7.250 IN. LARGEST OD; 4.500 IN. O/A H; BOTTOM END THD EXTERNAL 7.000-8 NPT THD,1.355 IN. THD LG IN; End Item Identification: WORTHINGTON 7X9X12 VERTICAL SIMPLEX AND 8X9X18 MAIN ENGINE LUBRICATING OIL PUMPS. 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.