The Pump,water, cataloged under National Stock Number 4520-01-104-5663, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Kwd Aircraft Support Equipment Llc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Pump,water |
| FSC / FSG | 4520 — Space and Water Heating Equipment (FSG 45) |
| Manufacturers | Kwd Aircraft Support Equipment Llc (CAGE 71670) |
| Parameter | Value |
|---|---|
| NSN | 4520-01-104-5663 |
| Primary Part Number | 312-366 |
| Item Name | Pump,water |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Kwd Aircraft Support Equipment Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 312-366 PRIMARY | Kwd Aircraft Support Equipment Llc (USA) |
| Reference | Meaning |
|---|---|
| 312-366 | 5/9 Secondary reference Ventura Mfg Co |
NSN 4520-01-104-5663 is a Pump,water, manufactured by Kwd Aircraft Support Equipment Llc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-104-5663 has 1 manufacturer part number on file: 312-366 (Kwd Aircraft Support Equipment Llc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-526-3858. Verify interchangeability with system specifications before substitution.
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.