The Sleeve,shaft,pump, cataloged under National Stock Number 4320-01-062-3428, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-062-3428 |
| Primary Part Number | 659C0588J028A |
| Item Name | Sleeve,shaft,pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Circor Naval Solutions Llc Dba Warren Pumps |
| Status | ACTIVE |
| Corner Shape | SQUARE ALL CORNERS |
| Flange Outside Diameter | 5.0000 INCHES NOMINAL IN |
| Body Outside Diameter | 4.0000 INCHES NOMINAL IN |
| Style Designator | HALF SLEEVE, EXTERNAL FLANGE ONE END |
| Body Inside Diameter | 3.6250 INCHES NOMINAL IN |
| Flange Width | 2.7660 INCHES NOMINAL IN |
| Material | NICKEL ALLOY OVERALL |
| 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 |
|---|---|
| 659C0588J028A PRIMARY | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
| 659C0588-AP | Acme Products & Engineering Inc (USA) |
| KMC-659C0588 | Krobach Mfg. Corp. Dba Krobach Manufacturing Corp (USA) |
| Reference | Meaning |
|---|---|
| PL999D0556PC15 | 5/9 Secondary reference Circor Naval Solutions Llc Dba Warren Pumps |
| 65900163J028A | 5/9 Secondary reference Circor Naval Solutions Llc Dba Warren Pumps |
| SPI-659C0588 | 5/9 Secondary reference Ships Parts Inc |
| 999D0556 | D/9 Drawing number reference only Circor Naval Solutions Llc Dba Warren Pumps |
NSN 4320-01-062-3428 is a Sleeve,shaft,pump, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-062-3428 has 3 manufacturer part numbers on file: 659C0588J028A (Circor Naval Solutions Llc Dba Warren Pumps), 659C0588-AP (Acme Products & Engineering Inc), KMC-659C0588 (Krobach Mfg. Corp. Dba Krobach Manufacturing Corp).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-062-3838. Verify interchangeability with system specifications before substitution.
Key specifications for 659C0588J028A: Corner Shape: SQUARE ALL CORNERS; Flange Outside Diameter: 5.0000 INCHES NOMINAL IN; Body Outside Diameter: 4.0000 INCHES NOMINAL IN; Style Designator: HALF SLEEVE, EXTERNAL FLANGE ONE END. 7 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.