The Valve,angle, cataloged under National Stock Number 4820-01-481-8451, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Velan Valve Corp.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-481-8451 |
| Primary Part Number | P023-87911-G01 ITEM NO.004 |
| Item Name | Valve,angle |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Velan Valve Corp. |
| 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 |
|---|---|
| P023-87911-G01 ITEM NO.004 PRIMARY | Velan Valve Corp. (USA) |
| Reference | Meaning |
|---|---|
| P023-87911-G01 | D/9 Drawing number reference only Velan Valve Corp. |
NSN 4820-01-481-8451 is a Valve,angle, manufactured by Velan Valve Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-481-8451 has 1 manufacturer part number on file: P023-87911-G01 ITEM NO.004 (Velan Valve Corp.).
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-481-8457, 4820-01-481-8608, 4820-01-481-8613. Verify interchangeability with system specifications before substitution.
Key specifications for P023-87911-G01 ITEM NO.004: Special Features: USED WITH STEAM; End Item Identification: NIMITZ CLASS CVN. 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.