PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

73C36Valve,plug

Auto-Valve, Inc · NSN 4820-01-139-1898 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-139-1898 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-139-1898. Primary manufacturer part number: 73C36.
Features
  • Valve,plug — FSC 4820
  • 5 verified cross-references
  • Primary manufacturer: Auto-Valve, Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,plug, cataloged under National Stock Number 4820-01-139-1898, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Auto-Valve, Inc. This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,plug
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersThe Boeing Company Div Defense (CAGE 76301); Auto-Valve, Inc (CAGE 91511); Circor Aerospace, Inc. Dba Circor Aerospace Inc (CAGE 91816); Nimikkeistokeskus Ncb Finland (CAGE A486G)
Technical Specifications
ParameterValue
NSN4820-01-139-1898
Primary Part Number73C36
Item NameValve,plug
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAuto-Valve, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
2930-01-010-493110110496 INTERCHANGEABLE
Pump,cooling System,engine
General Motors Llc Dba General Motors Llc
Cross-Reference Index
Part NumberManufacturer
ST7M473-1 The Boeing Company Div Defense (USA)
ST7M473 The Boeing Company Div Defense (USA)
73C36 PRIMARY Auto-Valve, Inc (USA)
P138-395 PRIMARY Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
10124624 Nimikkeistokeskus Ncb Finland (FIN)
Related Parts
2930-01-010-4931INTERCHANGEABLE
PUMP,COOLING SYSTEM,ENGINE
10110496

Frequently Asked Questions

What is NSN 4820-01-139-1898?

NSN 4820-01-139-1898 is a Valve,plug, manufactured by Auto-Valve, Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-139-1898?

NSN 4820-01-139-1898 has 5 cross-referenced part numbers: ST7M473-1 (The Boeing Company Div Defense), ST7M473 (The Boeing Company Div Defense), 73C36 (Auto-Valve, Inc), P138-395 (Circor Aerospace, Inc. Dba Circor Aerospace Inc), 10124624 (Nimikkeistokeskus Ncb Finland).

What NSN replaces 4820-01-139-1898?

There is 1 known substitute for 4820-01-139-1898: 2930-01-010-4931. Verify interchangeability with system specifications before substitution.

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