The Retainer,valve Spring,hydraulic, cataloged under National Stock Number 4320-01-420-4259, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Wanner Engineering Inc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-420-4259 |
| Primary Part Number | D25-023-2310 |
| Item Name | Retainer,valve Spring,hydraulic |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Wanner Engineering Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| D25-023-2310 PRIMARY | Wanner Engineering Inc (USA) |
| Reference | Meaning |
|---|---|
| D35C2500004 ITEM 38 | C/1 Advisory reference — outside the item-of-supply concept Wanner Engineering Inc |
| PL-H25C0700001 REF NO.16 | 5/1 Secondary reference Wanner Engineering Inc |
| D35C2500003 ITEM 38 | C/1 Advisory reference — outside the item-of-supply concept Wanner Engineering Inc |
NSN 4320-01-420-4259 is a Retainer,valve Spring,hydraulic, manufactured by Wanner Engineering Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-420-4259 has 1 manufacturer part number on file: D25-023-2310 (Wanner Engineering Inc).
Key specifications for D25-023-2310: End Item Identification: PUMP,WANNER ENGINEERING INC,MODEL H25. 0 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.