PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

54939 FIND NO 2Valve,ball

Electro Impulse Laboratory Inc Dba Electro Impulse Inc · NSN 4820-01-497-0632 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-497-0632 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-497-0632. Primary manufacturer part number: 54939 FIND NO 2.
Features
  • Valve,ball — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: Electro Impulse Laboratory Inc Dba Electro Impulse Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,ball, cataloged under National Stock Number 4820-01-497-0632, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Electro Impulse Laboratory Inc Dba Electro Impulse Inc. This item has 3 commercial cross-references from 2 manufacturers, 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
NSN4820-01-497-0632
Primary Part Number54939 FIND NO 2
Item NameValve,ball
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerElectro Impulse Laboratory Inc Dba Electro Impulse Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4730-01-031-318554762-16 INTERCHANGEABLE
Nozzle,spray,fluid-Emulsion
DC Fabricators Inc
5340-01-062-4117787AS849 INTERCHANGEABLE
Wheel,solid,nonmetallic
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
4820-01-497-0598UN-3-050-SS-T-1/2 INTERCHANGEABLE
Valve,check
International Valve Corp Dba Check-All Valve Mfg. Co.
4330-01-497-2052RHS-786 INTERCHANGEABLE
Filter Body,fluid
Tinny Corporation the Dba Tinny Corp Div Shelco Filters
5935-01-559-098654939 INTERCHANGEABLE
Connector Assembly,electrical
Aerovironment, Inc. Dba Aerovironment Inc
Cross-Reference Index
Part NumberManufacturer
54939 Electro Impulse Laboratory Inc Dba Electro Impulse Inc (USA)
4467K31 Mcmaster-Carr Supply Company (USA)
54939 FIND NO 2 PRIMARY Electro Impulse Laboratory Inc Dba Electro Impulse Inc (USA)
Related Parts
4730-01-031-3185INTERCHANGEABLE
NOZZLE,SPRAY,FLUID-EMULSION
54762-16
5340-01-062-4117INTERCHANGEABLE
WHEEL,SOLID,NONMETALLIC
787AS849
4820-01-497-0598INTERCHANGEABLE
VALVE,CHECK
UN-3-050-SS-T-1/2
4330-01-497-2052INTERCHANGEABLE
FILTER BODY,FLUID
RHS-786
5935-01-559-0986INTERCHANGEABLE
CONNECTOR ASSEMBLY,ELECTRICAL
54939

Frequently Asked Questions

What is NSN 4820-01-497-0632?

NSN 4820-01-497-0632 is a Valve,ball, manufactured by Electro Impulse Laboratory Inc Dba Electro Impulse Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-497-0632?

NSN 4820-01-497-0632 has 3 cross-referenced part numbers: 54939 (Electro Impulse Laboratory Inc Dba Electro Impulse Inc), 4467K31 (Mcmaster-Carr Supply Company), 54939 FIND NO 2 (Electro Impulse Laboratory Inc Dba Electro Impulse Inc).

What NSN replaces 4820-01-497-0632?

There are 5 known substitutes for 4820-01-497-0632: 4730-01-031-3185, 5340-01-062-4117, 4820-01-497-0598 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 54939 FIND NO 2?

Key specifications for 54939 FIND NO 2: End Item Identification: DEMINERALIZED WATER UNIT. 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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