The Pump,hydraulic, cataloged under National Stock Number 4320-00-239-2633, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Mechanical Tool and Engineering Co. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Pump,hydraulic |
| FSC / FSG | 4320 — Power and Hand Pumps (FSG 43) |
| Manufacturers | Mechanical Tool and Engineering Co (CAGE 20977) |
| Parameter | Value |
|---|---|
| NSN | 4320-00-239-2633 |
| Primary Part Number | B310PR |
| Item Name | Pump,hydraulic |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Mechanical Tool and Engineering Co |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| B310PR PRIMARY | Mechanical Tool and Engineering Co (USA) |
| Reference | Meaning |
|---|---|
| 0303-5013 | 5/2 Secondary reference U.S. Government activity |
NSN 4320-00-239-2633 is a Pump,hydraulic, manufactured by Mechanical Tool and Engineering Co, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-239-2633 has 1 manufacturer part number on file: B310PR (Mechanical Tool and Engineering Co).
1 possible match (shared part number, not a government interchangeability claim): 5985-01-274-0766. Verify interchangeability with system specifications before substitution.
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.