PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

54370-27Valve,safety Relief

Eaton Aerospace Llc Dba Eaton Aerospace Jackson · NSN 4820-01-167-9839 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-167-9839 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-167-9839. Primary manufacturer part number: 54370-27.
Features
  • Valve,safety Relief — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-167-9839, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Eaton Aerospace Llc Dba Eaton Aerospace Jackson. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 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 Aerospace Llc Dba Eaton Aerospace Jackson (CAGE 99643)
Technical Specifications
ParameterValue
NSN4820-01-167-9839
Primary Part Number54370-27
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Eaton Aerospace Jackson
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5985-00-063-4426 INTERCHANGEABLE
Switch,waveguide
5120-00-223-95591204-4 INTERCHANGEABLE
Extractor,stuffing Box and Pump
C. S. Osborne and Company Dba Cs Osborne & Co
5310-00-595-7064 INTERCHANGEABLE
Washer,spring Tension
5360-00-954-600558330 INTERCHANGEABLE
Spring,helical,compression
Hydro-Aire Aerospace Corp
5330-01-067-330558330 INTERCHANGEABLE
Gasket
Mcculloch Corp
4330-01-132-751636763 INTERCHANGEABLE
Filter,fluid
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Cross-Reference Index
Part NumberManufacturer
54370-27 PRIMARY Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
58330 Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
Related Parts
5985-00-063-4426INTERCHANGEABLE
SWITCH,WAVEGUIDE
5120-00-223-9559INTERCHANGEABLE
EXTRACTOR,STUFFING BOX AND PUMP
1204-4
5310-00-595-7064INTERCHANGEABLE
WASHER,SPRING TENSION
5360-00-954-6005INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
58330
5330-01-067-3305INTERCHANGEABLE
GASKET
58330
4330-01-132-7516INTERCHANGEABLE
FILTER,FLUID
36763

Frequently Asked Questions

What is NSN 4820-01-167-9839?

NSN 4820-01-167-9839 is a Valve,safety Relief, manufactured by Eaton Aerospace Llc Dba Eaton Aerospace Jackson, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-167-9839?

NSN 4820-01-167-9839 has 2 cross-referenced part numbers: 54370-27 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson), 58330 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).

What NSN replaces 4820-01-167-9839?

There are 6 known substitutes for 4820-01-167-9839: 5985-00-063-4426, 5120-00-223-9559, 5310-00-595-7064 and 3 more. Verify interchangeability with system specifications before substitution.

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