The Seat,valve, cataloged under National Stock Number 4810-00-443-3199, is classified within Federal Supply Class 4810 (Valves, Powered) 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 4 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4810-00-443-3199 |
| Primary Part Number | 664741 |
| Item Name | Seat,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| Body Outside Diameter | 0.135 INCHES NOMINAL IN |
| Body Inside Diameter | 0.035 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 664741 | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| 664741 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 664741 | 5/9 Secondary reference U.S. Government activity |
NSN 4810-00-443-3199 is a Seat,valve, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-00-443-3199 has 2 manufacturer part numbers on file: 664741 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 664741 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
1 possible match (shared part number, not a government interchangeability claim): 1680-01-555-4486. Verify interchangeability with system specifications before substitution.
Key specifications for 664741: Overall Height: 0.090 INCHES NOMINAL IN; Body Outside Diameter: 0.135 INCHES NOMINAL IN; Body Inside Diameter: 0.035 INCHES NOMINAL IN; Surface Treatment: PASSIVATE OVERALL. 4 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.