The Seat,valve, cataloged under National Stock Number 4820-01-368-7575, 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 3 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-368-7575 |
| Primary Part Number | 227984 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Donaldson Company, Inc. |
| Status | ACTIVE |
| Body Outside Diameter | 1.600 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Material | ALUMINUM ALLOY 6061 SEAT |
| 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 |
|---|---|
| 430621 ITEM 39 | Donaldson Company, Inc. (USA) |
| 227984 PRIMARY | Donaldson Company, Inc. (USA) |
| 327961 ITEM 2 | Donaldson Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 431384 ITEM 39 | C/1 Advisory reference — outside the item-of-supply concept Donaldson Company, Inc. |
NSN 4820-01-368-7575 is a Seat,valve, manufactured by Donaldson Company, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-368-7575 has 3 manufacturer part numbers on file: 430621 ITEM 39 (Donaldson Company, Inc.), 227984 (Donaldson Company, Inc.), 327961 ITEM 2 (Donaldson Company, Inc.).
Key specifications for 227984: Overall Height: 0.400 INCHES NOMINAL IN; Body Outside Diameter: 1.600 INCHES NOMINAL IN; Style Designator: PLAIN; Material: ALUMINUM ALLOY 6061 SEAT. 3 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.