PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

918-80-4-09798-00Seat,valve

Cashco Inc · NSN 4820-00-430-3710 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-430-3710 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-430-3710. Primary manufacturer part number: 918-80-4-09798-00.
Features
  • Seat,valve — FSC 4820
  • Body Inside Diameter: 0.500 INCHES NOMINAL IN
  • Seating Surface Shape: ANGULAR
  • Material: COPPER ALLOY OVERALL
  • Style Designator: PLAIN
  • Body Outside Diameter: 0.742 INCHES MINIMUM AND 0.743 INCHES MAXIMUM IN
  • Seat Angle in Deg: 45.000 NOMINAL
  • 3 verified cross-references
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-430-3710, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Cashco Inc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-430-3710
Primary Part Number918-80-4-09798-00
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCashco Inc
StatusACTIVE
Body Inside Diameter0.500 INCHES NOMINAL IN
Seating Surface ShapeANGULAR
MaterialCOPPER ALLOY OVERALL
Style DesignatorPLAIN
Body Outside Diameter0.742 INCHES MINIMUM AND 0.743 INCHES MAXIMUM IN
Seat Angle in Deg45.000 NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
1630-00-130-917597-98 INTERCHANGEABLE
Weight,wheel Balancing
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
5340-01-036-8908 INTERCHANGEABLE
Catch,magnetic
4730-01-241-6617 INTERCHANGEABLE
Coupling Half,self-Sealing
6105-01-345-97039798 INTERCHANGEABLE
Motor,alternating Current
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
5340-01-538-20069798 INTERCHANGEABLE
Hook,latch,aircraft
Avibank Mfg., Inc. Dba Avibank Manufacturing Inc
6515-01-599-2297 INTERCHANGEABLE
Filter,oxygen Delivery System
Cross-Reference Index
Part NumberManufacturer
9798 Cashco Inc (USA)
918-80-4-09798-00 PRIMARY Cashco Inc (USA)
IOM-123-0.50IN Cashco Inc (USA)
Related Parts
1630-00-130-9175INTERCHANGEABLE
WEIGHT,WHEEL BALANCING
97-98
5340-01-036-8908INTERCHANGEABLE
CATCH,MAGNETIC
4730-01-241-6617INTERCHANGEABLE
COUPLING HALF,SELF-SEALING
6105-01-345-9703INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
9798
5340-01-538-2006INTERCHANGEABLE
HOOK,LATCH,AIRCRAFT
9798
6515-01-599-2297INTERCHANGEABLE
FILTER,OXYGEN DELIVERY SYSTEM

Frequently Asked Questions

What is NSN 4820-00-430-3710?

NSN 4820-00-430-3710 is a Seat,valve, manufactured by Cashco Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-430-3710?

NSN 4820-00-430-3710 has 3 cross-referenced part numbers: 9798 (Cashco Inc), 918-80-4-09798-00 (Cashco Inc), IOM-123-0.50IN (Cashco Inc).

What NSN replaces 4820-00-430-3710?

There are 6 known substitutes for 4820-00-430-3710: 1630-00-130-9175, 5340-01-036-8908, 4730-01-241-6617 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 918-80-4-09798-00?

Key specifications for 918-80-4-09798-00: Body Inside Diameter: 0.500 INCHES NOMINAL IN; Overall Height: 0.500 INCHES NOMINAL IN; Seating Surface Shape: ANGULAR; Material: COPPER ALLOY OVERALL. 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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