The Retainer,cylinder, cataloged under National Stock Number 4320-01-107-9708, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-107-9708 |
| Primary Part Number | 238578 |
| Item Name | Retainer,cylinder |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| General Characteristics Item Description | STL 1018 ASTM-A108 AND A576 |
| 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 |
|---|---|
| 238578 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
| 845957 PIECE 41 | Eaton Aerospace, Llc Dba Jackson South (USA) |
| Reference | Meaning |
|---|---|
| 845957 | D/9 Drawing number reference only Eaton Aerospace, Llc Dba Jackson South |
| 838947 PIECE 41 | C/1 Advisory reference — outside the item-of-supply concept Eaton Aerospace, Llc Dba Jackson South |
NSN 4320-01-107-9708 is a Retainer,cylinder, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-107-9708 has 2 manufacturer part numbers on file: 238578 (Eaton Aerospace, Llc Dba Jackson South), 845957 PIECE 41 (Eaton Aerospace, Llc Dba Jackson South).
1 possible match (shared part number, not a government interchangeability claim): 5365-01-108-9557. Verify interchangeability with system specifications before substitution.
Key specifications for 238578: General Characteristics Item Description: STL 1018 ASTM-A108 AND A576; End Item Identification: SPERRY VICKERS MODEL L6-MFA 50-30-U-11 HYDRAULIC MOTOR. 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.