The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-277-9136, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Grundfos Cbs, Inc Dba Paco Pumps. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-277-9136 |
| Primary Part Number | 03006573B18-7.1IN |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Grundfos Cbs, Inc Dba Paco Pumps |
| Status | ACTIVE |
| Keyway Type | RECTANGULAR |
| Keyway Depth | 0.094 INCHES NOMINAL IN |
| Hub Bore Diameter | 1.375 INCHES NOMINAL AND 0.875 INCHES NOMINAL IN |
| Hub Length | 0.375 INCHES NOMINAL AND 0.562 INCHES NOMINAL IN |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 7.100 INCHES NOMINAL IN |
| Mounting Method | KEY |
| Keyway Quantity | 1 |
| Hub Projection Length Beyond Wheel Side | 0.375 INCHES NOMINAL AND 0.438 INCHES NOMINAL IN |
| Blade Quantity | 2 |
| Keyway Length | 1.250 INCHES NOMINAL IN |
| Hub Quantity | 2 |
| Hub Location | BACK SIDE AND FRONT SIDE |
| Keyway Width | 0.188 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 03006573B18-7.1IN | Grundfos Cbs, Inc Dba Paco Pumps (USA) |
| Reference | Meaning |
|---|---|
| 91840745 B18 | 5/9 Secondary reference U.S. Government activity |
| 03006573B18-7.1IN | 3/9 Design control — primary reference U.S. Government activity |
| 03006573B18-7.1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4320-01-277-9136 is a Impeller,pump,centrifugal, manufactured by Grundfos Cbs, Inc Dba Paco Pumps, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-277-9136 has 1 manufacturer part number on file: 03006573B18-7.1IN (Grundfos Cbs, Inc Dba Paco Pumps).
Key specifications for 03006573B18-7.1IN: Keyway Type: RECTANGULAR; Keyway Depth: 0.094 INCHES NOMINAL IN; Hub Bore Diameter: 1.375 INCHES NOMINAL AND 0.875 INCHES NOMINAL IN; Hub Length: 0.375 INCHES NOMINAL AND 0.562 INCHES NOMINAL IN. 17 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.