PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CYLB51643Valve,check

Ge Aviation Systems Llc Dba Ge Aviation Systems Llc · NSN 4820-01-338-3547 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-338-3547 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-338-3547. Primary manufacturer part number: CYLB51643.
Features
  • Valve,check — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Ge Aviation Systems Llc Dba Ge Aviation Systems Llc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,check, cataloged under National Stock Number 4820-01-338-3547, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Ge Aviation Systems Llc Dba Ge Aviation Systems Llc. This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN4820-01-338-3547
Primary Part NumberCYLB51643
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGe Aviation Systems Llc Dba Ge Aviation Systems Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4820-01-339-21214201-2 INTERCHANGEABLE
Valve,check
Tat Technologies Ltd Div Tat Israel
Cross-Reference Index
Part NumberManufacturer
CYLB51643 PRIMARY Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (USA)
Related Parts
4820-01-339-2121INTERCHANGEABLE
VALVE,CHECK
4201-2

Frequently Asked Questions

What is NSN 4820-01-338-3547?

NSN 4820-01-338-3547 is a Valve,check, manufactured by Ge Aviation Systems Llc Dba Ge Aviation Systems Llc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-338-3547?

NSN 4820-01-338-3547 has 1 cross-referenced part number: CYLB51643 (Ge Aviation Systems Llc Dba Ge Aviation Systems Llc).

What NSN replaces 4820-01-338-3547?

There is 1 known substitute for 4820-01-338-3547: 4820-01-339-2121. Verify interchangeability with system specifications before substitution.

What are the specifications of CYLB51643?

Key specifications for CYLB51643: End Item Identification: ACFT,TYPE F-16A,B,C,D A. 1 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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