PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

38368Disk,valve

The Walworth Company · NSN 4820-00-491-4998 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-491-4998 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-491-4998. Primary manufacturer part number: 38368.
Features
  • Disk,valve — FSC 4820
  • Inside Diameter: 0.218 INCHES NOMINAL IN
  • Material: PLASTIC
  • Style Designator: PLAIN
  • Outside Diameter: 0.718 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: The Walworth Company
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Plastic construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-00-491-4998, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is The Walworth Company. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-491-4998
Primary Part Number38368
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerThe Walworth Company
StatusACTIVE
Inside Diameter0.218 INCHES NOMINAL IN
MaterialPLASTIC
Style DesignatorPLAIN
Outside Diameter0.718 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5305-00-147-24625305L20-004 INTERCHANGEABLE
Screw,machine
Us Army Aviation and Missile Command
5305-00-282-3861 INTERCHANGEABLE
Screw,machine
5330-00-430-834680102B INTERCHANGEABLE
Gasket
Brinkley Technology Group Llc Dba Hercules Manufacturing
5365-01-416-544538368 INTERCHANGEABLE
Ring,externally Threaded
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Cross-Reference Index
Part NumberManufacturer
38368 PRIMARY The Walworth Company (USA)
Related Parts
5305-00-147-2462INTERCHANGEABLE
SCREW,MACHINE
5305L20-004
5305-00-282-3861INTERCHANGEABLE
SCREW,MACHINE
5330-00-430-8346INTERCHANGEABLE
GASKET
80102B
5365-01-416-5445INTERCHANGEABLE
RING,EXTERNALLY THREADED
38368

Frequently Asked Questions

What is NSN 4820-00-491-4998?

NSN 4820-00-491-4998 is a Disk,valve, manufactured by The Walworth Company, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-491-4998?

NSN 4820-00-491-4998 has 1 cross-referenced part number: 38368 (The Walworth Company).

What NSN replaces 4820-00-491-4998?

There are 4 known substitutes for 4820-00-491-4998: 5305-00-147-2462, 5305-00-282-3861, 5330-00-430-8346 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 38368?

Key specifications for 38368: Inside Diameter: 0.218 INCHES NOMINAL IN; Material: PLASTIC; Overall Height: 0.218 INCHES NOMINAL IN; Style Designator: PLAIN. 5 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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