The Valve,poppet,engine, cataloged under National Stock Number 2810-00-487-6334, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2810-00-487-6334 |
| Primary Part Number | 158175M5 |
| Item Name | Valve,poppet,engine |
| FSC / FSG | 2810 / 28 — Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components |
| Manufacturer | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. |
| Status | ACTIVE |
| Stem Diameter | 0.6822 INCHES NOMINAL IN |
| Head Height | 0.5060 INCHES NOMINAL IN |
| Stem Length | 5.7110 INCHES NOMINAL IN |
| Seat Angle in Deg | 45.0 |
| Chamfer Length | 0.0200 INCHES NOMINAL IN |
| Neck Radius | 0.8750 INCHES NOMINAL IN |
| Groove Diameter | 0.5690 INCHES NOMINAL IN |
| Metallic Hardness Rating and Location | 60.0 ROCKWELL C NOMINAL TIP |
| Material Document and Classification | AMS 5700 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Distance From Groove to Stem End | 0.2180 INCHES NOMINAL IN |
| Stem Style | GROOVED |
| Head Style | MUSHROOM |
| Chamfer Angle in Deg | 45.0 |
| Material | STEEL COMP EV-9 OVERALL |
| Groove Width | 0.1875 INCHES NOMINAL IN |
| 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 |
|---|---|
| 158175M5 PRIMARY | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN) |
| Reference | Meaning |
|---|---|
| 158175M5 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
NSN 2810-00-487-6334 is a Valve,poppet,engine, 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 2810-00-487-6334 has 1 manufacturer part number on file: 158175M5 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).
Key specifications for 158175M5: Stem Diameter: 0.6822 INCHES NOMINAL IN; Head Height: 0.5060 INCHES NOMINAL IN; Stem Length: 5.7110 INCHES NOMINAL IN; Seat Angle in Deg: 45.0. 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.