The Guide,valve Stem, cataloged under National Stock Number 2810-00-348-8881, 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 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2810-00-348-8881 |
| Primary Part Number | 17363P3 |
| Item Name | Guide,valve Stem |
| FSC / FSG | 2810 / 28 — Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Countersink Angle in Deg | 30.0 |
| FSC Application Data | ACFT ENG R1830 |
| Aa End Chamfer Angle in Deg | 45.0 |
| Aa End Chamfer Length | 0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN |
| Major Diameter Length | 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN |
| Bb End Shank Diameter | 0.660 INCHES MINIMUM AND 0.661 INCHES MAXIMUM IN |
| Style Designator | PLAIN FLANGED |
| Bore Counterbore | NOT INCLUDED |
| Outside Diameter | 0.771 INCHES MINIMUM AND 0.791 INCHES MAXIMUM IN |
| Countersink Length | 0.041 INCHES MAXIMUM IN |
| Countersink Length | 0.021 INCHES MINIMUM IN |
| Bb End Chamfer Length | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Bb End Radius | 0.006 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN |
| Bore Diameter | 0.4775 INCHES MINIMUM AND 0.4905 INCHES MAXIMUM IN |
| Material | COPPER ALLOY |
| Metallic Hardness Rating | 85.0 MINIMUM ROCKWELL F |
| 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 |
|---|---|
| 17363P3 | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN) |
| 17363P003 | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN) |
| 17363P3 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| AS17363P3 | 5/9 Secondary reference Aircraft Supplies |
| 17363P003 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
NSN 2810-00-348-8881 is a Guide,valve Stem, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2810, Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components. Status: active.
NSN 2810-00-348-8881 has 3 manufacturer part numbers on file: 17363P3 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.), 17363P003 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.), 17363P3 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 17363P3: Countersink Angle in Deg: 30.0; FSC Application Data: ACFT ENG R1830; Aa End Chamfer Angle in Deg: 45.0; Aa End Chamfer Length: 0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN. 18 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.