The Piston,valve, cataloged under National Stock Number 4810-01-434-8762, 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 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-434-8762 |
| Primary Part Number | 3751166-1 |
| Item Name | Piston,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| Valve Type for Which Designed | BALL |
| Material Document and Classification | AMS 5659, 15-5PH ASSN STD SINGLE MATERIAL RESPONSE |
| Valve Size for Which Designed | 1.500 INCHES IN |
| Valve Design Control Activity | 59364 |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 3751166-1 | Aero International, Llc Dba Ams Engineered Solutions (USA) |
| 3751166-1 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| 3798670-75 | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 3798670 | D/9 Drawing number reference only Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
NSN 4810-01-434-8762 is a Piston,valve, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-434-8762 has 3 manufacturer part numbers on file: 3751166-1 (Aero International, Llc Dba Ams Engineered Solutions), 3751166-1 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)), 3798670-75 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
4 possible matches (shared part number, not a government interchangeability claim): 4810-01-435-0651, 4810-01-435-0664, 4730-01-435-1642. Verify interchangeability with system specifications before substitution.
Key specifications for 3751166-1: Valve Type for Which Designed: BALL; Material Document and Classification: AMS 5659, 15-5PH ASSN STD SINGLE MATERIAL RESPONSE; Valve Size for Which Designed: 1.500 INCHES IN; Valve Design Control Activity: 59364. 5 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.