PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

420C-1Valve,check

Kepner Products Co Div Kepner Products Company · NSN 4820-01-363-2094 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-363-2094 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-363-2094. Primary manufacturer part number: 420C-1.
Features
  • Valve,check — FSC 4820
  • Flow Control Device: DISK
  • Nominal Thread Size: 1.250 INCHES ALL ENDS IN
  • Material: STEEL BODY
  • Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS
  • Valve Operation Method: AUTOMATIC
  • Style Designator: STRAIGHT THRU
  • Media for Which Designed: LIQUID SINGLE RESPONSE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Body construction
General Description

The Valve,check, cataloged under National Stock Number 4820-01-363-2094, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Kepner Products Co Div Kepner Products Company. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-363-2094
Primary Part Number420C-1
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerKepner Products Co Div Kepner Products Company
StatusACTIVE
Flow Control DeviceDISK
Nominal Thread Size1.250 INCHES ALL ENDS IN
MaterialSTEEL BODY
Connection StylePLAIN, OPTIONAL END (PIPE) ALL ENDS
Valve Operation MethodAUTOMATIC
Style DesignatorSTRAIGHT THRU
Media for Which DesignedLIQUID SINGLE RESPONSE
Mounting PositionHORIZONTAL
Thread Series DesignatorNPT ALL ENDS
Thread DirectionRIGHT-HAND ALL ENDS
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5940-00-258-193310-507-3 INTERCHANGEABLE
Terminal,feedthru
Concord Electronics, Inc.
Cross-Reference Index
Part NumberManufacturer
420C-1 PRIMARY Kepner Products Co Div Kepner Products Company (USA)
WG210288 Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center (USA)
Related Parts
5940-00-258-1933INTERCHANGEABLE
TERMINAL,FEEDTHRU
10-507-3

Frequently Asked Questions

What is NSN 4820-01-363-2094?

NSN 4820-01-363-2094 is a Valve,check, manufactured by Kepner Products Co Div Kepner Products Company, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-363-2094?

NSN 4820-01-363-2094 has 2 cross-referenced part numbers: 420C-1 (Kepner Products Co Div Kepner Products Company), WG210288 (Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center).

What NSN replaces 4820-01-363-2094?

There is 1 known substitute for 4820-01-363-2094: 5940-00-258-1933. Verify interchangeability with system specifications before substitution.

What are the specifications of 420C-1?

Key specifications for 420C-1: Flow Control Device: DISK; Nominal Thread Size: 1.250 INCHES ALL ENDS IN; Material: STEEL BODY; Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS. 11 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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