PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5283Seat,valve

Tescom Corp Dba Tescom Div Tescom · NSN 4820-00-480-5623 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-480-5623 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-480-5623. Primary manufacturer part number: 5283.
Features
  • Seat,valve — FSC 4820
  • Body Inside Diameter: 0.437 INCHES MINIMUM AND 0.441 INCHES MAXIMUM IN
  • Seating Surface Shape: ANGULAR
  • Seat Angle in Deg: 55.000 NOMINAL
  • Style Designator: PLAIN
  • Body Outside Diameter: 0.664 INCHES MINIMUM AND 0.668 INCHES MAXIMUM IN
  • Material: ELASTOMER FLUOROCARBON OVERALL
  • 1 verified cross-reference
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Elastomer Fluorocarbon Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-480-5623, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Tescom Corp Dba Tescom Div Tescom. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-480-5623
Primary Part Number5283
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTescom Corp Dba Tescom Div Tescom
StatusACTIVE
Body Inside Diameter0.437 INCHES MINIMUM AND 0.441 INCHES MAXIMUM IN
Seating Surface ShapeANGULAR
Seat Angle in Deg55.000 NOMINAL
Style DesignatorPLAIN
Body Outside Diameter0.664 INCHES MINIMUM AND 0.668 INCHES MAXIMUM IN
MaterialELASTOMER FLUOROCARBON OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2940-00-529-2739P70FF INTERCHANGEABLE
Filter Element,fluid
Arvinmeritor Inc
5340-01-050-9368 INTERCHANGEABLE
Handle,bow
5365-01-194-0897 INTERCHANGEABLE
Spacer,ring
2040-01-240-7192528 D08 CHR INTERCHANGEABLE
Plate,deck,access
Perko Inc
1660-01-696-64385283 INTERCHANGEABLE
Heat Exchanger,fluid to Fluid,ai
Gulfstream Aerospace Corporation Div Government Contracts
Cross-Reference Index
Part NumberManufacturer
5283 PRIMARY Tescom Corp Dba Tescom Div Tescom (USA)
Related Parts
2940-00-529-2739INTERCHANGEABLE
FILTER ELEMENT,FLUID
P70FF
5340-01-050-9368INTERCHANGEABLE
HANDLE,BOW
5365-01-194-0897INTERCHANGEABLE
SPACER,RING
2040-01-240-7192INTERCHANGEABLE
PLATE,DECK,ACCESS
528 D08 CHR
1660-01-696-6438INTERCHANGEABLE
HEAT EXCHANGER,FLUID TO FLUID,AI
5283

Frequently Asked Questions

What is NSN 4820-00-480-5623?

NSN 4820-00-480-5623 is a Seat,valve, manufactured by Tescom Corp Dba Tescom Div Tescom, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-480-5623?

NSN 4820-00-480-5623 has 1 cross-referenced part number: 5283 (Tescom Corp Dba Tescom Div Tescom).

What NSN replaces 4820-00-480-5623?

There are 5 known substitutes for 4820-00-480-5623: 2940-00-529-2739, 5340-01-050-9368, 5365-01-194-0897 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5283?

Key specifications for 5283: Body Inside Diameter: 0.437 INCHES MINIMUM AND 0.441 INCHES MAXIMUM IN; Seating Surface Shape: ANGULAR; Seat Angle in Deg: 55.000 NOMINAL; Style Designator: PLAIN. 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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