The Guide,valve Stem, cataloged under National Stock Number 4810-01-025-2902, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Service & Sales Inc. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4810-01-025-2902 |
| Primary Part Number | 3163812-1 |
| Item Name | Guide,valve Stem |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Service & Sales Inc |
| Status | ACTIVE |
| Bore Counterbore | INCLUDED |
| Counterbore Depth | 0.277 INCHES NOMINAL IN |
| Counterbore Location | AA END |
| Counterbore Diameter | 0.260 INCHES NOMINAL IN |
| Bore Diameter | 0.1423 INCHES NOMINAL IN |
| 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 |
|---|---|
| 3163812-1 PRIMARY | Service & Sales Inc (USA) |
| 3163812-1 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 3163812-1 | 5/9 Secondary reference U.S. Government activity |
NSN 4810-01-025-2902 is a Guide,valve Stem, manufactured by Service & Sales Inc, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-025-2902 has 2 manufacturer part numbers on file: 3163812-1 (Service & Sales Inc), 3163812-1 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
Key specifications for 3163812-1: Overall Length: 1.093 INCHES NOMINAL IN; Bore Counterbore: INCLUDED; Counterbore Depth: 0.277 INCHES NOMINAL IN; Counterbore Location: AA END. 6 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.