PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

434927Valve,check

Outboard Marine Corp · NSN 4820-01-423-4327 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-423-4327 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-423-4327. Primary manufacturer part number: 434927.
Features
  • Valve,check — FSC 4820
  • Valve Operation Method: AUTOMATIC
  • 4 verified cross-references
  • Primary manufacturer: Outboard Marine Corp
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,check, cataloged under National Stock Number 4820-01-423-4327, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Outboard Marine Corp. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN4820-01-423-4327
Primary Part Number434927
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerOutboard Marine Corp
StatusACTIVE
Valve Operation MethodAUTOMATIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
2840-00-859-1096355098 INTERCHANGEABLE
Seal,metallic,aircraft Gas Turbi
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Cross-Reference Index
Part NumberManufacturer
434927 Outboard Marine Corp (USA)
434927 Brp Us Inc (USA)
434927 Outboard Marine Corp Johnson Motors Div (USA)
434927 Evinrude Motors Product Group of Outboard Marine Corp (USA)
Related Parts
2840-00-859-1096INTERCHANGEABLE
SEAL,METALLIC,AIRCRAFT GAS TURBI
355098

Frequently Asked Questions

What is NSN 4820-01-423-4327?

NSN 4820-01-423-4327 is a Valve,check, manufactured by Outboard Marine Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-423-4327?

NSN 4820-01-423-4327 has 4 cross-referenced part numbers: 434927 (Outboard Marine Corp), 434927 (Brp Us Inc), 434927 (Outboard Marine Corp Johnson Motors Div), 434927 (Evinrude Motors Product Group of Outboard Marine Corp).

What NSN replaces 4820-01-423-4327?

There is 1 known substitute for 4820-01-423-4327: 2840-00-859-1096. Verify interchangeability with system specifications before substitution.

What are the specifications of 434927?

Key specifications for 434927: End Item Identification: PROPULSION SYSTEMS; Valve Operation Method: AUTOMATIC. 2 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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