PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

62273Valve,safety Relief

Eaton Corporation Dba Eaton Inoac · NSN 4820-01-581-3647 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-581-3647 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-581-3647. Primary manufacturer part number: 62273.
Features
  • Valve,safety Relief — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Eaton Corporation Dba Eaton Inoac
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-581-3647, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Eaton Corporation Dba Eaton Inoac. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,safety Relief
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersEaton Corporation Dba Eaton Inoac (CAGE 0DT23)
Technical Specifications
ParameterValue
NSN4820-01-581-3647
Primary Part Number62273
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEaton Corporation Dba Eaton Inoac
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5331-00-248-383300506G INTERCHANGEABLE
O-Ring
Griswold Industries Dba Cla-Val Co
5930-00-410-814762273 INTERCHANGEABLE
Switch,pressure
Cadillac Gage Textron Inc.
5330-00-446-2639 INTERCHANGEABLE
Packing,preformed
4210-00-555-1283290511 INTERCHANGEABLE
Bracket,fire Extinguisher
Kidde-Fenwal, Llc
5330-00-741-06527410652 INTERCHANGEABLE
Packing,preformed
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
62273 PRIMARY Eaton Corporation Dba Eaton Inoac (USA)
Related Parts
5331-00-248-3833INTERCHANGEABLE
O-RING
00506G
5930-00-410-8147INTERCHANGEABLE
SWITCH,PRESSURE
62273
5330-00-446-2639INTERCHANGEABLE
PACKING,PREFORMED
4210-00-555-1283INTERCHANGEABLE
BRACKET,FIRE EXTINGUISHER
290511
5330-00-741-0652INTERCHANGEABLE
PACKING,PREFORMED
7410652

Frequently Asked Questions

What is NSN 4820-01-581-3647?

NSN 4820-01-581-3647 is a Valve,safety Relief, manufactured by Eaton Corporation Dba Eaton Inoac, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-581-3647?

NSN 4820-01-581-3647 has 1 cross-referenced part number: 62273 (Eaton Corporation Dba Eaton Inoac).

What NSN replaces 4820-01-581-3647?

There are 5 known substitutes for 4820-01-581-3647: 5331-00-248-3833, 5930-00-410-8147, 5330-00-446-2639 and 2 more. Verify interchangeability with system specifications before substitution.

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