The Adjusting Screw,val, cataloged under National Stock Number 4820-01-495-4831, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Adjusting Screw,val |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-495-4831 |
| Item Name | Adjusting Screw,val |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| 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 |
| Reference | Meaning |
|---|---|
| D1234-946 ITEM 28CP | C/1 Advisory reference — outside the item-of-supply concept Dante Valve Company |
| D1234 | D/9 Drawing number reference only Danco Valve Company |
| B3424CP | C/1 Advisory reference — outside the item-of-supply concept Dante Valve Company |
| B3424CP | 3/9 Design control — primary reference Danco Valve Company |
| D1234-946 ITEM 28CP | 5/9 Secondary reference Danco Valve Company |
NSN 4820-01-495-4831 is a Adjusting Screw,val, classified under FSC 4820, Valves, Nonpowered. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-516-7003, 5331-01-517-6062, 5331-01-517-6066. Verify interchangeability with system specifications before substitution.
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.