The Vane,pump,rotary, cataloged under National Stock Number 4320-00-353-5255, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Gast Mfg Corp. Government technical data includes 3 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. 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 | 4320-00-353-5255 |
| Primary Part Number | AA345 |
| Item Name | Vane,pump,rotary |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Gast Mfg Corp |
| Status | ACTIVE |
| Thickness | 0.016 INCHES IN |
| Motor-Pump Design Control Activity | 24123 |
| Material | PLASTIC |
| 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 |
|---|---|
| AA345 PRIMARY | Gast Mfg Corp (USA) |
NSN 4320-00-353-5255 is a Vane,pump,rotary, manufactured by Gast Mfg Corp, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-353-5255 has 1 manufacturer part number on file: AA345 (Gast Mfg Corp).
1 possible match (shared part number, not a government interchangeability claim): 5136-00-889-6639. Verify interchangeability with system specifications before substitution.
Key specifications for AA345: Overall Length: 0.750 INCHES IN; Thickness: 0.016 INCHES IN; Overall Width: 0.612 INCHES IN; Motor-Pump Design Control Activity: 24123. 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.