The Seat,valve, cataloged under National Stock Number 4820-00-651-0804, 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 11 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-651-0804 |
| Primary Part Number | 235315P70R1 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.436 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Flange Diameter | 2.888 INCHES NOMINAL IN |
| FSC Application Data | ACFT ENG R2800 |
| Body Outside Diameter | 2.397 INCHES MINIMUM AND 2.401 INCHES MAXIMUM IN |
| Hardness Rating | 90.0 ROCKWELL C MINIMUM AND 105.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | PLAIN FLANGED |
| Body Inside Diameter | 2.306 INCHES MINIMUM AND 2.316 INCHES MAXIMUM IN |
| Under Flange Height | 0.136 INCHES MINIMUM AND 0.144 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Seat Angle in Deg | 43.500 MINIMUM AND 44.500 MAXIMUM |
| 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 | X |
| Part Number | Manufacturer |
|---|---|
| 235315P70R1 PRIMARY | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN) |
| Reference | Meaning |
|---|---|
| AS235315P70 | 5/9 Secondary reference Aircraft Supplies |
| 235315P70 | 5/9 Secondary reference Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. |
| 235315P70 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| 235315P70R1 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
NSN 4820-00-651-0804 is a Seat,valve, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-651-0804 has 1 manufacturer part number on file: 235315P70R1 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).
Key specifications for 235315P70R1: Flange Seat to Disk End Height: 0.436 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN; Flange Diameter: 2.888 INCHES NOMINAL IN; FSC Application Data: ACFT ENG R2800; Body Outside Diameter: 2.397 INCHES MINIMUM AND 2.401 INCHES MAXIMUM IN. 11 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.