The Retainer,disk,valve, cataloged under National Stock Number 4820-01-422-7448, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Newmans Inc New Jersey Div. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-422-7448 |
| Primary Part Number | A0254-00 ITEM 23 2.5IN |
| Item Name | Retainer,disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Newmans Inc New Jersey Div |
| Status | ACTIVE |
| Valve Model Number for Which Designed | 21F-CB2 |
| Valve Size for Which Designed | 2.500 INCHES IN |
| Valve Design Control Activity | 61661 |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| A0254-00 ITEM 23 2.5IN PRIMARY | Newmans Inc New Jersey Div (USA) |
| Reference | Meaning |
|---|---|
| A0254-00 IT23 | C/1 Advisory reference — outside the item-of-supply concept Newmans Inc New Jersey Div |
NSN 4820-01-422-7448 is a Retainer,disk,valve, manufactured by Newmans Inc New Jersey Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-422-7448 has 1 manufacturer part number on file: A0254-00 ITEM 23 2.5IN (Newmans Inc New Jersey Div).
Key specifications for A0254-00 ITEM 23 2.5IN: Valve Model Number for Which Designed: 21F-CB2; Valve Size for Which Designed: 2.500 INCHES IN; Valve Design Control Activity: 61661; End Item Identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS. 4 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.