NSN 4820-01-162-5123 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-162-5123. Manufacturer of record part number: 1R1800 23122.
Flange Seat to Disk End Height: 1.138 INCHES NOMINAL IN
Flange Diameter: 4.295 INCHES NOMINAL IN
Body Outside Diameter: 2.125 INCHES NOMINAL IN
Style Designator: PLAIN FLANGED
Body Inside Diameter: 1.358 INCHES NOMINAL IN
Surface Treatment: PAINT OVERALL
Under Flange Height: 0.408 INCHES NOMINAL IN
Identification
NSN: 4820-01-162-5123
NIIN: 011625123
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 1R1800 23122
Manufacturer: Fisher Controls Co Inc
General Description
The Seat,valve, cataloged under National Stock Number 4820-01-162-5123, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Fisher Controls Co Inc. Government technical data includes 9 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.
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
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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 4820-01-162-5123?
NSN 4820-01-162-5123 is a Seat,valve, manufactured by Fisher Controls Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-162-5123?
NSN 4820-01-162-5123 has 1 manufacturer part number on file: 1R1800 23122 (Fisher Controls Co Inc).
What are the specifications of 1R1800 23122?
Key specifications for 1R1800 23122: Flange Seat to Disk End Height: 1.138 INCHES NOMINAL IN; Flange Diameter: 4.295 INCHES NOMINAL IN; Body Outside Diameter: 2.125 INCHES NOMINAL IN; Style Designator: PLAIN FLANGED. 9 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-162-5123 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.