The Pump Subassembly,rotary, cataloged under National Stock Number 4320-01-266-8070, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is W S Darley & Co. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-266-8070 |
| Primary Part Number | AP00803 |
| Item Name | Pump Subassembly,rotary |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | W S Darley & Co |
| Status | ACTIVE |
| Major Components | CYLINDER 1; INBOARD HEAD 1; OUTBOARD HEAD 1; ROTOR 1; ROTOR SHAFT 1; ROTOR VANES 4; SHAFT KEY 1; OIL SEAL 1; O-RING 2; FREEZE PLUG 1; BUSHING 2; TAPER PIN 1; CAP SCREWS 4; LOCKWASHER 4; FITTING 1 |
| Criticality Code Justification | FEAT |
| Mounting Configuration | FOUR 0.312 IN. HEX HEAD CAP SCREWS IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| AP00803 PRIMARY | W S Darley & Co (USA) |
| 055-00001-9 | Kovatch Corp. (USA) |
| Reference | Meaning |
|---|---|
| VGA7 | 5/9 Secondary reference W S Darley & Co |
| VGA1 | 5/9 Secondary reference W S Darley & Co |
NSN 4320-01-266-8070 is a Pump Subassembly,rotary, manufactured by W S Darley & Co, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-266-8070 has 2 manufacturer part numbers on file: AP00803 (W S Darley & Co), 055-00001-9 (Kovatch Corp.).
Key specifications for AP00803: Major Components: CYLINDER 1; INBOARD HEAD 1; OUTBOARD HEAD 1; ROTOR 1; ROTOR SHAFT 1; ROTOR VANES 4; SHAFT KEY 1; OIL SEAL 1; O-RING 2; FREEZE PLUG 1; BUSHING 2; TAPER PIN 1; CAP SCREWS 4; LOCKWASHER 4; FITTING 1; Criticality Code Justification: FEAT; Special Features: WEAPON SYSTEM ESSENTIAL; Mounting Configuration: FOUR 0.312 IN. HEX HEAD CAP SCREWS IN. 3 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.