The Valve Assembly, cataloged under National Stock Number 4820-01-159-2923, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Tate Andale, Llc. Government technical data includes 7 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 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 | 4820-01-159-2923 |
| Primary Part Number | 33163 |
| Item Name | Valve Assembly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Tate Andale, Llc |
| Status | ACTIVE |
| Valve Quantity | 3 |
| Flange Face Design | PLAIN |
| Connection Type | FLANGE, ROUND W/HOLES |
| End Connection Quantity | 4 |
| Valve Size | 2.500 INCHES IN |
| Bolt Hole Quantity | 6 |
| Flange Diameter | 6.125 INCHES IN |
| 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 |
|---|---|
| 33163 PRIMARY | Tate Andale, Llc (USA) |
NSN 4820-01-159-2923 is a Valve Assembly, manufactured by Tate Andale, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-159-2923 has 1 manufacturer part number on file: 33163 (Tate Andale, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-569-6576. Verify interchangeability with system specifications before substitution.
Key specifications for 33163: Valve Quantity: 3; Flange Face Design: PLAIN; Connection Type: FLANGE, ROUND W/HOLES; End Connection Quantity: 4. 7 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.