The Guide,valve Stem, cataloged under National Stock Number 4810-01-263-0644, 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 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4810-01-263-0644 |
| Primary Part Number | 859414-3 |
| Item Name | Guide,valve Stem |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| Countersink Angle in Deg | 25.0 |
| Countersink Diameter | 0.405 INCHES NOMINAL IN |
| Major Diameter Length | 0.055 INCHES NOMINAL IN |
| Bb End Shank Diameter | 0.282 INCHES NOMINAL IN |
| Supplementary Features | USED ON 396170-3-1 VALVE |
| Style Designator | SHOULDERED-GROOVED SHANK |
| Outside Diameter | 0.540 INCHES NOMINAL IN |
| Aa End Diameter | 0.405 INCHES NOMINAL IN |
| Bore Diameter | 0.3400 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Metallic Hardness Rating | 57.0 NOMINAL ROCKWELL C |
| Bore Countersink | INCLUDED |
| Countersink Location | AA END |
| 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 |
|---|---|
| 859414-3 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 859414-3 | 5/9 Secondary reference U.S. Government activity |
NSN 4810-01-263-0644 is a Guide,valve Stem, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-263-0644 has 1 manufacturer part number on file: 859414-3 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
Key specifications for 859414-3: Countersink Angle in Deg: 25.0; Countersink Diameter: 0.405 INCHES NOMINAL IN; Major Diameter Length: 0.055 INCHES NOMINAL IN; Bb End Shank Diameter: 0.282 INCHES NOMINAL IN. 13 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.