The Valve, cataloged under National Stock Number 4820-01-050-9260, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ausco Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-050-9260 |
| Primary Part Number | M4012-10 |
| Item Name | Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Ausco Inc |
| Status | ACTIVE |
| General Characteristics Item Description | 1.950 IN. LG,0.624 IN. MIN 0.626 IN. MAX FLOW DIA 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 |
|---|---|
| M4012-10 | Ausco Inc (USA) |
| A2680 | Preece Inc Decca Valves Div (USA) |
| Reference | Meaning |
|---|---|
| 4820PL1626771 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| C7907-8 | 7/2 Vendor item drawing reference U.S. Government activity |
| 4C3208 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-050-9260 is a Valve, manufactured by Ausco Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-050-9260 has 2 manufacturer part numbers on file: M4012-10 (Ausco Inc), A2680 (Preece Inc Decca Valves Div).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-630-2488. Verify interchangeability with system specifications before substitution.
Key specifications for M4012-10: General Characteristics Item Description: 1.950 IN. LG,0.624 IN. MIN 0.626 IN. MAX FLOW DIA IN. 1 specification is 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.