The Sleeve,shaft,pump, cataloged under National Stock Number 4320-01-034-0431, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-034-0431 |
| Item Name | Sleeve,shaft,pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Status | ACTIVE |
| Corner Shape | SQUARE ALL CORNERS |
| Body Outside Diameter | 1.2500 INCHES NOMINAL IN |
| Hardness Rating | 265.0 BRINELL STANDARD NOMINAL OVERALL |
| Style Designator | SOLID, PLAIN, NO OUTSIDE FLANGES |
| Features Provided | CASEHARDENED |
| Body Inside Diameter | 1.0310 INCHES NOMINAL IN |
| Material | NICKEL ALLOY OVERALL |
| 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 |
|---|---|
| 10295-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4320-01-034-0431 is a Sleeve,shaft,pump, classified under FSC 4320, Power and Hand Pumps. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 5962-01-111-2524, 5930-01-220-6394, 8340-01-495-0450. Verify interchangeability with system specifications before substitution.
Key specifications for 4320-01-034-0431: Corner Shape: SQUARE ALL CORNERS; Body Outside Diameter: 1.2500 INCHES NOMINAL IN; Hardness Rating: 265.0 BRINELL STANDARD NOMINAL OVERALL; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES. 7 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.