PartsTable TECHNICAL DATA SHEET
NSN 4820-00-494-3454Government record, cited

Seat, Valve4820-00-494-3454

NSN 4820-00-494-3454 · NIIN 004943454 · Part number 2826123-1
Triumph Actuation Systems - Connecticut, Llc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 33068
Government record, cited
NSN 4820-00-494-3454 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-494-3454. Manufacturer of record part number: 2826123-1.
Also searched as  4820-00-494-3454 · 4820004943454 · NIIN 004943454 · 00-494-3454 · FSC 4820 Valves, Nonpowered · CAGE 33068 · 2826123-1
Nearby stock numbers  ·
Features
  • Seat,valve — FSC 4820
  • Flange Seat to Disk End Height: 0.100 INCHES NOMINAL IN
  • Flange Diameter: 0.313 INCHES NOMINAL IN
  • Body Outside Diameter: 0.194 INCHES NOMINAL IN
  • Style Designator: PLAIN FLANGED
  • Body Inside Diameter: 0.109 INCHES NOMINAL IN
  • Under Flange Height: 0.130 INCHES NOMINAL IN
  • Material: STEEL OVERALL
Identification
  • NSN: 4820-00-494-3454
  • NIIN: 004943454
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: 2826123-1
  • Manufacturer: Triumph Actuation Systems - Connecticut, Llc
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-494-3454, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Triumph Actuation Systems - Connecticut, Llc. 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
ParameterValue
NSN4820-00-494-3454
Primary Part Number2826123-1
Item NameSeat,valve
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerTriumph Actuation Systems - Connecticut, Llc
StatusACTIVE
Flange Seat to Disk End Height0.100 INCHES NOMINAL IN
Flange Diameter0.313 INCHES NOMINAL IN
Body Outside Diameter0.194 INCHES NOMINAL IN
Style DesignatorPLAIN FLANGED
Body Inside Diameter0.109 INCHES NOMINAL IN
Under Flange Height0.130 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
2826123-1 PRIMARY Triumph Actuation Systems - Connecticut, Llc (USA)
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
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 4820-00-494-3454?

NSN 4820-00-494-3454 is a Seat,valve, manufactured by Triumph Actuation Systems - Connecticut, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-00-494-3454?

NSN 4820-00-494-3454 has 1 manufacturer part number on file: 2826123-1 (Triumph Actuation Systems - Connecticut, Llc).

What are the specifications of 2826123-1?

Key specifications for 2826123-1: Flange Seat to Disk End Height: 0.100 INCHES NOMINAL IN; Flange Diameter: 0.313 INCHES NOMINAL IN; Body Outside Diameter: 0.194 INCHES NOMINAL IN; Style Designator: PLAIN FLANGED. 7 specifications are documented in the U.S. Government catalog.

Is NSN 4820-00-494-3454 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.
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