The Seat,valve, cataloged under National Stock Number 4810-01-172-9640, 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 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-172-9640 |
| Primary Part Number | 3166917-2 |
| 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 |
| Flange Seat to Disk End Height | 0.085 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| Flange Diameter | 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| FSC Application Data | VALVE,ANTI-ICE,FLOW,TEMP LIMITING |
| Body Outside Diameter | 0.322 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN |
| Style Designator | PLAIN FLANGED |
| Material Document and Classification | AMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.220 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN |
| Under Flange Height | 0.030 INCHES NOMINAL IN |
| Material | STEEL COMP 17-4PH OVERALL |
| Seating Surface Shape | FLAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 3166917-2 | Aero International, Llc Dba Ams Engineered Solutions (USA) |
| 3166917-2 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 3166917-2 | 5/9 Secondary reference U.S. Government activity |
NSN 4810-01-172-9640 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 4810-01-172-9640 has 2 manufacturer part numbers on file: 3166917-2 (Aero International, Llc Dba Ams Engineered Solutions), 3166917-2 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
Key specifications for 3166917-2: Flange Seat to Disk End Height: 0.085 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN; Flange Diameter: 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; FSC Application Data: VALVE,ANTI-ICE,FLOW,TEMP LIMITING; Body Outside Diameter: 0.322 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN. 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.