The Shaft,transmission,pump, cataloged under National Stock Number 4320-01-446-3276, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Bosch Rexroth Corporation Div Industrial Hydraulics. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-446-3276 |
| Primary Part Number | R910913998 |
| Item Name | Shaft,transmission,pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Bosch Rexroth Corporation Div Industrial Hydraulics |
| Status | ACTIVE |
| Shaft Type | DRIVE SHAFT |
| Furnished Items and Quantity | 1 KEY |
| Pump Type for Which Designed | AXIAL PISTON |
| Shaft Length | 3.470 INCHES NOMINAL IN |
| Pump Design Control Activity | 27005 |
| First End Connection Type | KEYED |
| Pump Model Number for Which Designed | A2F500W5Z1V-SO43A-1198 |
| Material | STEEL |
| 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 |
|---|---|
| R910913998 PRIMARY | Bosch Rexroth Corporation Div Industrial Hydraulics (USA) |
| R910913998 | Hydrotech Inc Dba Hydrotech Engineering Inc (USA) |
| Reference | Meaning |
|---|---|
| 913998 | C/1 Advisory reference — outside the item-of-supply concept Bosch Rexroth Corporation Div Industrial Hydraulics |
| BH00927228 ITEM 4 | 5/9 Secondary reference Bosch Rexroth Corporation Div Industrial Hydraulics |
| BH00913998 | 3/9 Design control — primary reference Bosch Rexroth Corporation Div Industrial Hydraulics |
NSN 4320-01-446-3276 is a Shaft,transmission,pump, manufactured by Bosch Rexroth Corporation Div Industrial Hydraulics, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-446-3276 has 2 manufacturer part numbers on file: R910913998 (Bosch Rexroth Corporation Div Industrial Hydraulics), R910913998 (Hydrotech Inc Dba Hydrotech Engineering Inc).
1 possible match (shared part number, not a government interchangeability claim): 5999-01-618-4586. Verify interchangeability with system specifications before substitution.
Key specifications for R910913998: Shaft Type: DRIVE SHAFT; Furnished Items and Quantity: 1 KEY; Pump Type for Which Designed: AXIAL PISTON; Shaft Length: 3.470 INCHES NOMINAL IN. 8 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.