The Seat,valve, cataloged under National Stock Number 4820-00-127-8917, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Eaton Corporation Dba Eaton Inoac Div Eaton. Government technical data includes 6 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 | 4820-00-127-8917 |
| Primary Part Number | 90P9CZ40 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Eaton Corporation Dba Eaton Inoac Div Eaton |
| Status | ACTIVE |
| Body Outside Diameter | 2.906 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Material Document and Classification | VITON B MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 2.500 INCHES NOMINAL IN |
| Material | RUBBER FLUOROCARBON CLASS FPM OVERALL |
| Seating Surface Shape | FLAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 90P9CZ40 PRIMARY | Eaton Corporation Dba Eaton Inoac Div Eaton (USA) |
NSN 4820-00-127-8917 is a Seat,valve, manufactured by Eaton Corporation Dba Eaton Inoac Div Eaton, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-127-8917 has 1 manufacturer part number on file: 90P9CZ40 (Eaton Corporation Dba Eaton Inoac Div Eaton).
Key specifications for 90P9CZ40: Overall Height: 0.203 INCHES NOMINAL IN; Body Outside Diameter: 2.906 INCHES NOMINAL IN; Style Designator: PLAIN; Material Document and Classification: VITON B MFR REF SINGLE MATERIAL RESPONSE OVERALL. 6 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.
NSN 4820-00-127-8917 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.