The Seat,valve, cataloged under National Stock Number 4820-00-407-8871, 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 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-00-407-8871 |
| Primary Part Number | 885236-1 |
| 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 |
| Flange Seat to Disk End Height | 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN |
| Flange Diameter | 1.024 INCHES MINIMUM AND 1.028 INCHES MAXIMUM IN |
| Body Outside Diameter | 0.922 INCHES MINIMUM AND 0.926 INCHES MAXIMUM IN |
| Style Designator | PLAIN FLANGED |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.579 INCHES MINIMUM AND 0.581 INCHES MAXIMUM IN |
| Under Flange Height | 0.580 INCHES MINIMUM AND 0.590 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Seat Angle in Deg | 59.000 MINIMUM AND 61.000 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 |
|---|---|
| 885236-1 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 885236-1 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-407-8871 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 4820-00-407-8871 has 1 manufacturer part number on file: 885236-1 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
Key specifications for 885236-1: Flange Seat to Disk End Height: 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN; Flange Diameter: 1.024 INCHES MINIMUM AND 1.028 INCHES MAXIMUM IN; Body Outside Diameter: 0.922 INCHES MINIMUM AND 0.926 INCHES MAXIMUM IN; Style Designator: PLAIN FLANGED. 10 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.