The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-00-605-2770, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Hdt Expeditionary Systems Inc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-605-2770 |
| Primary Part Number | 28681 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — No Item Name Available |
| Manufacturer | Hdt Expeditionary Systems Inc |
| Status | ACTIVE |
| Size Designator | 0.250-20NC |
| Blade Type | STRAIGHT |
| Rotation Direction for Which Designed | CLOCKWISE |
| Mounting Method | SETSCREW |
| Hub Length | 1.375 INCHES NOMINAL IN |
| Blade Quantity | 23 |
| Hub Bore Diameter | 1.376 INCHES MINIMUM AND 1.377 INCHES MAXIMUM IN |
| Material | ALUMINUM |
| Design Type | SINGLE WIDTH |
| Hub Projection Length Beyond Wheel Side | 0.250 INCHES NOMINAL IN |
| Setscrew Quantity | 1 |
| Hub Quantity | 1 |
| Hub Location | DOUBLE INSIDE OFFSET |
| Overall Diameter | 8.000 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4320-00-605-2770 is a Impeller,pump,centrifugal, manufactured by Hdt Expeditionary Systems Inc, classified under FSC 4320 (No Item Name Available). Status: active.
NSN 4320-00-605-2770 has 3 cross-referenced part numbers: 28681 (Hdt Expeditionary Systems Inc), 28681 (Drs Environmental Systems Inc), 28681 (Davey Compressor Co Div of Keco Industries Inc).
There are 4 known substitutes for 4320-00-605-2770: 2910-01-025-0457, 5305-01-058-3885, 4030-01-344-4255 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 28681: Size Designator: 0.250-20NC; Blade Type: STRAIGHT; Overall Width: 1.625 INCHES NOMINAL IN; Rotation Direction for Which Designed: CLOCKWISE. 15 total characteristics are documented in the Federal Logistics Information System.