The Cylinder Block,hydraulic Motor-P, cataloged under National Stock Number 4320-01-071-2903, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. 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 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 | 4320-01-071-2903 |
| Primary Part Number | 344064 |
| Item Name | Cylinder Block,hydraulic Motor-P |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL; 5.437 IN. O/A DIA; 4.632 IN. O/A LG; 2.312 IN. DIA HUB; 1.062 IN. LG OF HUB; CONTAINS 9 SLOTS EQUALLY SPACED 0.388 IN. W,0.531 IN. D,ON 3.875 IN. DIA BOLT CIRCLE IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4320-01-071-2903 is a Cylinder Block,hydraulic Motor-P, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-071-2903 has 2 manufacturer part numbers on file: 344064 (Eaton Aerospace, Llc Dba Jackson South), 349746 (Eaton Aerospace, Llc Dba Jackson South).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-258-3815. Verify interchangeability with system specifications before substitution.
Key specifications for 344064: General Characteristics Item Description: STEEL; 5.437 IN. O/A DIA; 4.632 IN. O/A LG; 2.312 IN. DIA HUB; 1.062 IN. LG OF HUB; CONTAINS 9 SLOTS EQUALLY SPACED 0.388 IN. W,0.531 IN. D,ON 3.875 IN. DIA BOLT CIRCLE IN. 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.