The Sleeve,shaft,pump, cataloged under National Stock Number 4320-01-043-0422, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-043-0422 |
| Item Name | Sleeve,shaft,pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Status | ACTIVE |
| Corner Shape | CHAMFERED INSIDE LEFT CORNER |
| Corner Shape | SQUARE OUTSIDE RIGHT CORNER |
| Corner Shape | CHAMFERED OUTSIDE LEFT CORNER |
| Corner Shape | CHAMFERED INSIDE RIGHT CORNER |
| Body Outside Diameter | 3.2500 INCHES NOMINAL IN |
| Style Designator | SOLID, PLAIN, NO OUTSIDE FLANGES |
| Body Inside Diameter | 2.5000 INCHES NOMINAL IN |
| Material | NICKEL ALLOY AND COPPER ALLOY OVERALL |
| Keyway Dimension | 0.2500 INCHES NOMINAL INTERNAL KEYWAY WIDTH IN |
| Keyway Dimension | 0.1450 INCHES NOMINAL INTERNAL KEYWAY DEPTH IN |
| Keyway Dimension | 1.4380 INCHES NOMINAL INTERNAL KEYWAY LENGTH IN |
| 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 |
|---|---|
| 250B135ABX1 | 3/9 Design control — primary reference U.S. Government activity |
| C250B135ABX1 | 5/9 Secondary reference U.S. Government activity |
| 250B135ABX1 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corporation Div Epd |
NSN 4320-01-043-0422 is a Sleeve,shaft,pump, classified under FSC 4320, Power and Hand Pumps. Status: active.
Key specifications for 4320-01-043-0422: Corner Shape: CHAMFERED INSIDE LEFT CORNER; Corner Shape: SQUARE OUTSIDE RIGHT CORNER; Corner Shape: CHAMFERED OUTSIDE LEFT CORNER; Corner Shape: CHAMFERED INSIDE RIGHT CORNER. 11 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.