PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20-0029Piston,valve

Lexair Inc · NSN 4820-01-312-5679 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-312-5679 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-312-5679. Primary manufacturer part number: 20-0029.
Features
  • Piston,valve — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Lexair Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Piston,valve, cataloged under National Stock Number 4820-01-312-5679, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Lexair Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePiston,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersLexair Inc (CAGE 56607)
Technical Specifications
ParameterValue
NSN4820-01-312-5679
Primary Part Number20-0029
Item NamePiston,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLexair Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5365-00-141-4937 INTERCHANGEABLE
Bushing,flexible Shaft
5310-00-189-84331-1225 INTERCHANGEABLE
Nut,plain,hexagon
Terex Usa, Llc Dba Terex Equipment Services
5305-00-359-8470 INTERCHANGEABLE
Screw
5962-00-372-0476 INTERCHANGEABLE
Microcircuit,digital
5310-00-523-8182200029 INTERCHANGEABLE
Nut,plain,hexagon
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
2825-01-379-9228200029-001 INTERCHANGEABLE
Deflector,dirt and Liquid
Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
6545-01-537-313820-0029 INTERCHANGEABLE
Triage Management System
North American Rescue, Llc
5999-01-649-457220-0029 INTERCHANGEABLE
Magnet,permanent
Brantner and Associates, Inc. Dba Te Connectivity Mog
Cross-Reference Index
Part NumberManufacturer
20-0029 PRIMARY Lexair Inc (USA)
Related Parts
5365-00-141-4937INTERCHANGEABLE
BUSHING,FLEXIBLE SHAFT
5310-00-189-8433INTERCHANGEABLE
NUT,PLAIN,HEXAGON
1-1225
5305-00-359-8470INTERCHANGEABLE
SCREW
5962-00-372-0476INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5310-00-523-8182INTERCHANGEABLE
NUT,PLAIN,HEXAGON
200029
2825-01-379-9228INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
200029-001
6545-01-537-3138INTERCHANGEABLE
TRIAGE MANAGEMENT SYSTEM
20-0029
5999-01-649-4572INTERCHANGEABLE
MAGNET,PERMANENT
20-0029

Frequently Asked Questions

What is NSN 4820-01-312-5679?

NSN 4820-01-312-5679 is a Piston,valve, manufactured by Lexair Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-312-5679?

NSN 4820-01-312-5679 has 1 cross-referenced part number: 20-0029 (Lexair Inc).

What NSN replaces 4820-01-312-5679?

There are 8 known substitutes for 4820-01-312-5679: 5365-00-141-4937, 5310-00-189-8433, 5305-00-359-8470 and 5 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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