The Seat,valve, cataloged under National Stock Number 4820-00-008-7992, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-008-7992 |
| Primary Part Number | 113651P20 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. |
| Status | ACTIVE |
| FSC Application Data | ACFT ENG R2000 |
| Body Outside Diameter | 3.089 INCHES MINIMUM AND 3.090 INCHES MAXIMUM IN |
| Seal Accommodation Type | GROOVED |
| Taper Minor Diameter | 2.703 INCHES MINIMUM AND 2.713 INCHES MAXIMUM IN |
| Hardness Rating | 90.0 ROCKWELL B MINIMUM AND 105.0 ROCKWELL B MAXIMUM BODY |
| Criticality Code Justification | ADAR |
| Style Designator | PLAIN |
| Material Document and Classification | AMS 5700 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Taper Major Diameter | 2.973 INCHES MINIMUM AND 2.983 INCHES MAXIMUM IN |
| Body Inside Diameter | 2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM IN |
| Taper Length | 0.368 INCHES MINIMUM AND 0.396 INCHES MAXIMUM IN |
| Material | STEEL BODY |
| Seat Angle in Deg | 45.000 NOMINAL |
| Seating Surface Shape | ANGULAR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 113651P20 PRIMARY | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN) |
NSN 4820-00-008-7992 is a Seat,valve, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-008-7992 has 1 manufacturer part number on file: 113651P20 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).
Key specifications for 113651P20: Overall Height: 0.462 INCHES MINIMUM AND 0.464 INCHES MAXIMUM IN; FSC Application Data: ACFT ENG R2000; Body Outside Diameter: 3.089 INCHES MINIMUM AND 3.090 INCHES MAXIMUM IN; Seal Accommodation Type: GROOVED. 14 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.