NSN 4820-01-057-6645 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-057-6645. Manufacturer of record part number: 90P9CD-04.
Also searched as4820-01-057-6645 ·
4820010576645 ·
NIIN 010576645 ·
01-057-6645 ·
FSC 4820 Valves, Nonpowered · CAGE 77842 · 90P9CD-04
Body Outside Diameter: 0.582 INCHES MINIMUM AND 0.590 INCHES MAXIMUM IN
Hardness Rating: 90.0 DUROMETER NOMINAL OVERALL
Style Designator: PLAIN
Material Document and Classification: MIL-G-23652 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Body Inside Diameter: 0.487 INCHES NOMINAL IN
Material: ELASTOMER FLUOROCARBON OVERALL
Seating Surface Shape: FLAT
Identification
NSN: 4820-01-057-6645
NIIN: 010576645
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 90P9CD-04
Manufacturer: Eaton Corporation Dba Eaton Inoac Div Eaton
General Description
The Seat,valve, cataloged under National Stock Number 4820-01-057-6645, 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 7 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.
Technical Specifications
Parameter
Value
NSN
4820-01-057-6645
Primary Part Number
90P9CD-04
Item Name
Seat,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Eaton Corporation Dba Eaton Inoac Div Eaton
Status
ACTIVE
Body Outside Diameter
0.582 INCHES MINIMUM AND 0.590 INCHES MAXIMUM IN
Hardness Rating
90.0 DUROMETER NOMINAL OVERALL
Style Designator
PLAIN
Material Document and Classification
MIL-G-23652 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-01-057-6645?
NSN 4820-01-057-6645 is a Seat,valve, manufactured by Eaton Corporation Dba Eaton Inoac Div Eaton, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-057-6645?
NSN 4820-01-057-6645 has 1 manufacturer part number on file: 90P9CD-04 (Eaton Corporation Dba Eaton Inoac Div Eaton).
What are the specifications of 90P9CD-04?
Key specifications for 90P9CD-04: Overall Height: 0.096 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN; Body Outside Diameter: 0.582 INCHES MINIMUM AND 0.590 INCHES MAXIMUM IN; Hardness Rating: 90.0 DUROMETER NOMINAL OVERALL; Style Designator: PLAIN. 7 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-057-6645 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.