The Piston,control, cataloged under National Stock Number 4320-01-289-8337, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Reidville Hydraulics & Mfg Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4320-01-289-8337 |
| Primary Part Number | 62592 |
| Item Name | Piston,control |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Reidville Hydraulics & Mfg Inc |
| Status | ACTIVE |
| General Characteristics Item Description | BRONZE; 2.500 IN.H,2.000 IN.OD,THD HOLE IN CENTER,3.5-4.0 LBS LBS |
| 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 |
|---|---|
| 62592 PRIMARY | Reidville Hydraulics & Mfg Inc (USA) |
| 63897 PIECE 79 | Reidville Hydraulics & Mfg Inc (USA) |
| Reference | Meaning |
|---|---|
| 62592 | C/1 Advisory reference — outside the item-of-supply concept Eaton Aerospace, Llc Dba Jackson South |
NSN 4320-01-289-8337 is a Piston,control, manufactured by Reidville Hydraulics & Mfg Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-289-8337 has 2 manufacturer part numbers on file: 62592 (Reidville Hydraulics & Mfg Inc), 63897 PIECE 79 (Reidville Hydraulics & Mfg Inc).
1 possible match (shared part number, not a government interchangeability claim): 8465-01-523-9193. Verify interchangeability with system specifications before substitution.
Key specifications for 62592: General Characteristics Item Description: BRONZE; 2.500 IN.H,2.000 IN.OD,THD HOLE IN CENTER,3.5-4.0 LBS LBS; End Item Identification: HAGGLUNDS DENISON SERIES 40 AXIAL PISTONS PUMP. 1 specification is 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.