The Cap,valve, cataloged under National Stock Number 4820-01-423-2020, 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 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-423-2020 |
| Primary Part Number | A0831-01 ITEM 5 |
| Item Name | Cap,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Newmans Inc New Jersey Div |
| Status | ACTIVE |
| Valve Type for Which Designed | GLOBE |
| Valve Model Number for Which Designed | 800 |
| Material Document and Classification | ASTMA105 ASSN STD SINGLE MATERIAL RESPONSE |
| Valve Size for Which Designed | 0.250 INCHES IN |
| Material | STEEL |
| Attachment Method | THREADED |
| 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 |
|---|---|
| A0831-01 ITEM 5 PRIMARY | Newmans Inc New Jersey Div (USA) |
| Reference | Meaning |
|---|---|
| A0831-01 | D/9 Drawing number reference only Newmans Inc New Jersey Div |
NSN 4820-01-423-2020 is a Cap,valve, manufactured by Newmans Inc New Jersey Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-423-2020 has 1 manufacturer part number on file: A0831-01 ITEM 5 (Newmans Inc New Jersey Div).
Key specifications for A0831-01 ITEM 5: Valve Type for Which Designed: GLOBE; Valve Model Number for Which Designed: 800; Material Document and Classification: ASTMA105 ASSN STD SINGLE MATERIAL RESPONSE; Valve Size for Which Designed: 0.250 INCHES IN. 6 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.