The Seat,valve, cataloged under National Stock Number 4820-01-097-4355, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road). Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-097-4355 |
| Primary Part Number | 3500585-2 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| Body Outside Diameter | 0.586 INCHES MINIMUM AND 0.588 INCHES MAXIMUM IN |
| Style Designator | PLAIN |
| Body Inside Diameter | 0.370 INCHES MINIMUM AND 0.372 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Seat Angle in Deg | 40.000 MINIMUM AND 50.000 MAXIMUM |
| Seating Surface Shape | ANGULAR |
| 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 |
|---|---|
| 3500585-2 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 3500585-2 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-097-4355 is a Seat,valve, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-097-4355 has 1 manufacturer part number on file: 3500585-2 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
Key specifications for 3500585-2: Overall Height: 0.399 INCHES MINIMUM AND 0.409 INCHES MAXIMUM IN; Body Outside Diameter: 0.586 INCHES MINIMUM AND 0.588 INCHES MAXIMUM IN; Style Designator: PLAIN; Body Inside Diameter: 0.370 INCHES MINIMUM AND 0.372 INCHES MAXIMUM IN. 6 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.