PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

22173Plate,diaphragm

Liquid Level Lectronics Inc · NSN 4820-01-203-5518 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-203-5518 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-203-5518. Primary manufacturer part number: 22173.
Features
  • Plate,diaphragm — FSC 4820
  • General Characteristics Item Description: CRES,304
  • 1 verified cross-reference
  • Primary manufacturer: Liquid Level Lectronics Inc
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Plate,diaphragm, cataloged under National Stock Number 4820-01-203-5518, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Liquid Level Lectronics Inc. Government technical data includes 1 verified specification, 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-203-5518
Primary Part Number22173
Item NamePlate,diaphragm
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLiquid Level Lectronics Inc
StatusACTIVE
General Characteristics Item DescriptionCRES,304
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6625-00-445-2221 INTERCHANGEABLE
Board,register
5310-00-708-94462-2173 INTERCHANGEABLE
Nut,plain,slotted,hexagon
Porta Drill Inc
4820-01-141-8660460641 INTERCHANGEABLE
Stem,fluid Valve
Daniel Measurement & Control, Inc.
Cross-Reference Index
Part NumberManufacturer
22173 Liquid Level Lectronics Inc (USA)
Related Parts
6625-00-445-2221INTERCHANGEABLE
BOARD,REGISTER
5310-00-708-9446INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
2-2173
4820-01-141-8660INTERCHANGEABLE
STEM,FLUID VALVE
460641

Frequently Asked Questions

What is NSN 4820-01-203-5518?

NSN 4820-01-203-5518 is a Plate,diaphragm, manufactured by Liquid Level Lectronics Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-203-5518?

NSN 4820-01-203-5518 has 1 cross-referenced part number: 22173 (Liquid Level Lectronics Inc).

What NSN replaces 4820-01-203-5518?

There are 3 known substitutes for 4820-01-203-5518: 6625-00-445-2221, 5310-00-708-9446, 4820-01-141-8660. Verify interchangeability with system specifications before substitution.

What are the specifications of 22173?

Key specifications for 22173: General Characteristics Item Description: CRES,304. 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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