The Guide,valve Stem, cataloged under National Stock Number 2810-00-348-8864, is classified within Federal Supply Class 2810 (Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2810-00-348-8864 |
| Primary Part Number | 17166P3 |
| Item Name | Guide,valve Stem |
| FSC / FSG | 2810 / 28 — Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components |
| Manufacturer | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. |
| Status | ACTIVE |
| FSC Application Data | ACFT ENG R1830 |
| Width Across Flats | 0.199 INCHES NOMINAL IN |
| Major Diameter Length | 0.781 INCHES NOMINAL IN |
| Bb End Shank Diameter | 1.062 INCHES NOMINAL IN |
| Style Designator | SHOULDERED W/FLATS SHANK END |
| Bore Counterbore | INCLUDED |
| Outside Diameter | 1.132 INCHES NOMINAL IN |
| Flats Length | 0.859 INCHES NOMINAL IN |
| Counterbore Depth | 0.654 INCHES NOMINAL IN |
| Counterbore Location | BB END |
| Counterbore Diameter | 0.906 INCHES NOMINAL IN |
| Bb End Chamfer Angle in Deg | 45.0 |
| Bore Diameter | 0.8090 INCHES MINIMUM AND 0.8105 INCHES MAXIMUM IN |
| Material | ALUMINUM |
| Bore Countersink | NOT INCLUDED |
| 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 |
|---|---|
| 17166P3 PRIMARY | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN) |
| Reference | Meaning |
|---|---|
| 17166P3 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
NSN 2810-00-348-8864 is a Guide,valve Stem, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 2810, Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components. Status: active.
NSN 2810-00-348-8864 has 1 manufacturer part number on file: 17166P3 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).
Key specifications for 17166P3: FSC Application Data: ACFT ENG R1830; Width Across Flats: 0.199 INCHES NOMINAL IN; Major Diameter Length: 0.781 INCHES NOMINAL IN; Bb End Shank Diameter: 1.062 INCHES NOMINAL IN. 15 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.