The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-00-792-8187, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-792-8187 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Status | ACTIVE |
| Hub Bore Diameter | 0.646 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN |
| Hub Length | 0.716 INCHES MINIMUM AND 0.720 INCHES MAXIMUM IN |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 5.183 INCHES MINIMUM AND 5.188 INCHES MAXIMUM IN |
| Mounting Method | THREAD |
| Thread Diameter | 0.625 INCHES NOMINAL IN |
| Material Document and Classification | ASTM B144 ALLOY NO. 938 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND |
| Hub Projection Length Beyond Wheel Side | 0.531 INCHES NOMINAL IN |
| Blade Quantity | 4 |
| Hub Quantity | 1 |
| Hub Location | BACK SIDE |
| Screw Thread Series Designator | UNF |
| Surface Treatment | CADMIUM |
| Material | COPPER ALLOY 938 |
| Thread Quantity | 18 PER INCH |
| Rotation Direction for Which Designed | CLOCKWISE |
| Blade Type | FORWARD CURVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 15948 | 5/9 Secondary reference U.S. Government activity |
| 33635 | 5/2 Secondary reference U.S. Government activity |
| 2S388 | 5/9 Secondary reference Carter Ralph B Co |
| 13200E8808 | 3/2 Design control — primary reference U.S. Government activity |
| FP4145 | 5/9 Secondary reference Lull Corp |
NSN 4320-00-792-8187 is a Impeller,pump,centrifugal, classified under FSC 4320, Power and Hand Pumps. Status: active.
6 possible matches (shared part number, not a government interchangeability claim): 5950-01-158-9719, 5133-01-399-1206, 5330-01-526-9098. Verify interchangeability with system specifications before substitution.
Key specifications for 4320-00-792-8187: Hub Bore Diameter: 0.646 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN; Hub Length: 0.716 INCHES MINIMUM AND 0.720 INCHES MAXIMUM IN; Design Type: SINGLE WIDTH; Overall Diameter: 5.183 INCHES MINIMUM AND 5.188 INCHES MAXIMUM IN. 18 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.