The Sleeve,shaft,pump, cataloged under National Stock Number 4320-01-550-6503, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Carver Pump Company. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-550-6503 |
| Primary Part Number | 014-1430003-552 |
| Item Name | Sleeve,shaft,pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Carver Pump Company |
| Status | ACTIVE |
| 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 |
|---|---|
| 014-1430003-552 PRIMARY | Carver Pump Company (USA) |
| 999-4213-E-16 ITEM 14 | Carver Pump Company (USA) |
| Reference | Meaning |
|---|---|
| 014-1430003-550 | 3/9 Design control — primary reference Carver Pump Company |
| 999-4213-E-16 | D/9 Drawing number reference only Carver Pump Company |
NSN 4320-01-550-6503 is a Sleeve,shaft,pump, manufactured by Carver Pump Company, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-550-6503 has 2 manufacturer part numbers on file: 014-1430003-552 (Carver Pump Company), 999-4213-E-16 ITEM 14 (Carver Pump Company).
1 possible match (shared part number, not a government interchangeability claim): 5365-01-553-1252. Verify interchangeability with system specifications before substitution.
Key specifications for 014-1430003-552: Special Features: COMPOSITE MATERIAL; ONBOARD REPAIR PART; Part Name Assigned by Controlling Agency: SHAFT SLEEVE; End Item Identification: S/W COOLING PROP PUMP; SECTIONAL ASSEMBLY MAXUM 8X6-13 CLOSE-COUPLED; NEW CONSTRUCTION LHD 8. 0 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.