The Valve Assembly, cataloged under National Stock Number 4820-00-734-7149, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-734-7149 |
| Item Name | Valve Assembly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| CP28155 | 3/9 Design control — primary reference Davey Compressor Co Div of Keco Industries Inc |
| 040030 3011652 | 5/9 Secondary reference Hoerbiger Corp of America Inc |
| CP28155 | C/1 Advisory reference — outside the item-of-supply concept Drs Environmental Systems Inc |
| 4820PL0636488 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 28155 | 5/9 Secondary reference Davey Compressor Co Div of Keco Industries Inc |
| 04003030-311652 | 5/9 Secondary reference Hoerbiger Corp of America Inc |
| 040030 30-311652-A | 5/9 Secondary reference Hoerbiger Corp of America Inc |
NSN 4820-00-734-7149 is a Valve Assembly, classified under FSC 4820, Valves, Nonpowered. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 1680-00-918-1640, 5998-01-077-6718, 5999-01-407-0589. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-00-734-7149: Special Features: CONSISTS OF VALVE BODY,TWO VALVE PLATES, AND ONE END CAP W/10 PASSAGE HOLES, OTHER END CAP W/12 PASSAGE HOLES, 3RD STAGE DISCHARGE; End Item Identification: GRUMMAN AIRCRAFT CORP,A-10 AIRCRAFT. 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 4820-00-734-7149 has DEMIL Code Q. 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.