The Valve,flow Control, cataloged under National Stock Number 4820-01-445-3141, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-445-3141 |
| Primary Part Number | 2029AS821-10 |
| Item Name | Valve,flow Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 400561 | Itt Fluid Technology Corp Itt Mcdonnell and Miller (USA) |
| 2029AS821-10 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 401389 | Itt Fluid Technology Corp Itt Mcdonnell and Miller (USA) |
| Reference | Meaning |
|---|---|
| 401255 | 5/9 Secondary reference Itt Fluid Technology Corp Itt Mcdonnell and Miller |
| 400342 | 5/9 Secondary reference Itt Fluid Technology Corp Itt Mcdonnell and Miller |
NSN 4820-01-445-3141 is a Valve,flow Control, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-445-3141 has 3 manufacturer part numbers on file: 400561 (Itt Fluid Technology Corp Itt Mcdonnell and Miller), 2029AS821-10 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 401389 (Itt Fluid Technology Corp Itt Mcdonnell and Miller).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-579-6023. Verify interchangeability with system specifications before substitution.
Key specifications for 2029AS821-10: End Item Identification: PREPROVISIONING SUPPORT NAVICP IS POE. 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.
NSN 4820-01-445-3141 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.