The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-676-4660, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4320-01-676-4660 |
| Primary Part Number | 8729133 ASSY 99 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Design Type | SINGLE WIDTH |
| Mounting Method | SPLINE |
| Screw Thread Series Designator | UNF |
| Material | STEEL CORROSION RESISTING |
| Rotation Direction for Which Designed | CLOCKWISE |
| 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 |
|---|---|
| 8729133 ASSY 99 PRIMARY | Naval Sea Systems Command (USA) |
| 593-8729130 REV NO 27 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 593-8729133 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4320-01-676-4660 is a Impeller,pump,centrifugal, manufactured by Naval Sea Systems Command, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-676-4660 has 2 manufacturer part numbers on file: 8729133 ASSY 99 (Naval Sea Systems Command), 593-8729130 REV NO 27 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-680-5954. Verify interchangeability with system specifications before substitution.
Key specifications for 8729133 ASSY 99: Design Type: SINGLE WIDTH; Mounting Method: SPLINE; Screw Thread Series Designator: UNF; Part Name Assigned by Controlling Agency: LARGE PULPER MOD 1 SPLINED IMPELLER ASSEMBLY. 5 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.