The Disk,valve, cataloged under National Stock Number 4820-01-244-1971, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Donaldson Company, Inc.. Government technical data includes 2 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-244-1971 |
| Primary Part Number | 226995 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Donaldson Company, Inc. |
| Status | ACTIVE |
| Outside Diameter | 4.500 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| 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 |
|---|---|
| 226995 PRIMARY | Donaldson Company, Inc. (USA) |
NSN 4820-01-244-1971 is a Disk,valve, manufactured by Donaldson Company, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-244-1971 has 1 manufacturer part number on file: 226995 (Donaldson Company, Inc.).
Key specifications for 226995: Outside Diameter: 4.500 INCHES NOMINAL IN; Special Features: USED ON P/N 328154 VALVE,B-1B AIRCRAFT; Material: ALUMINUM ALLOY. 2 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.