PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

402200-1Valve,relief

Transdigm Inc Div Aero Fluid Products · NSN 4820-00-004-7029 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-004-7029 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-004-7029. Primary manufacturer part number: 402200-1.
Features
  • Valve,relief — FSC 4820
  • 4 verified cross-references
  • Primary manufacturer: Transdigm Inc Div Aero Fluid Products
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,relief, cataloged under National Stock Number 4820-00-004-7029, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Transdigm Inc Div Aero Fluid Products. This item has 4 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,relief
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersTransdigm Inc Div Aero Fluid Products (CAGE 96124); Northrop Grumman Systems Corporation (CAGE 26512); Raytheon Company Dba Raytheon (CAGE 96214); Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems (CAGE 61174)
Technical Specifications
ParameterValue
NSN4820-00-004-7029
Primary Part Number402200-1
Item NameValve,relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTransdigm Inc Div Aero Fluid Products
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6625-01-327-50314022 INTERCHANGEABLE
Sensor,current
Bird Electronic Corporation Div Bird Electronic Corp
Cross-Reference Index
Part NumberManufacturer
402200-1 PRIMARY Transdigm Inc Div Aero Fluid Products (USA)
A51E9101-1 Northrop Grumman Systems Corporation (USA)
402200-1 PRIMARY Raytheon Company Dba Raytheon (USA)
A51E9101-1 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems (USA)
Related Parts
6625-01-327-5031INTERCHANGEABLE
SENSOR,CURRENT
4022

Frequently Asked Questions

What is NSN 4820-00-004-7029?

NSN 4820-00-004-7029 is a Valve,relief, manufactured by Transdigm Inc Div Aero Fluid Products, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-004-7029?

NSN 4820-00-004-7029 has 4 cross-referenced part numbers: 402200-1 (Transdigm Inc Div Aero Fluid Products), A51E9101-1 (Northrop Grumman Systems Corporation), 402200-1 (Raytheon Company Dba Raytheon), A51E9101-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems).

What NSN replaces 4820-00-004-7029?

There is 1 known substitute for 4820-00-004-7029: 6625-01-327-5031. Verify interchangeability with system specifications before substitution.

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