PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

14590Valve,relief,pressure and Temper

Environmental Technology Inc · NSN 4820-01-472-1961 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-472-1961 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-472-1961. Primary manufacturer part number: 14590.
Features
  • Valve,relief,pressure and Temper — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Environmental Technology Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-472-1961, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Environmental Technology Inc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-472-1961
Primary Part Number14590
Item NameValve,relief,pressure and Temper
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEnvironmental Technology Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5935-00-259-33236A052 INTERCHANGEABLE
Connector,receptacle,electrical
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
6610-01-232-441914590 INTERCHANGEABLE
Wheel Assembly,hair
Aerosonic Llc
6240-01-344-481945PAR/NSP/H/120V INTERCHANGEABLE
Lamp,incandescent
General Electric Company Dba Ge
4931-01-687-645514590 INTERCHANGEABLE
Test Set,fire Control System
Imeco Inc
5905-01-708-291714590 INTERCHANGEABLE
Resistor,fixed,wire Wound
Fireaway Llc Dba Stat-X
Cross-Reference Index
Part NumberManufacturer
14590 Environmental Technology Inc (USA)
16500-06012 L3 Technologies, Inc. Dba Narda Satellite Networks Div Narda Satellite Networks (USA)
Related Parts
5935-00-259-3323INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
6A052
6610-01-232-4419INTERCHANGEABLE
WHEEL ASSEMBLY,HAIR
14590
6240-01-344-4819INTERCHANGEABLE
LAMP,INCANDESCENT
45PAR/NSP/H/120V
4931-01-687-6455INTERCHANGEABLE
TEST SET,FIRE CONTROL SYSTEM
14590
5905-01-708-2917INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
14590

Frequently Asked Questions

What is NSN 4820-01-472-1961?

NSN 4820-01-472-1961 is a Valve,relief,pressure and Temper, manufactured by Environmental Technology Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-472-1961?

NSN 4820-01-472-1961 has 2 cross-referenced part numbers: 14590 (Environmental Technology Inc), 16500-06012 (L3 Technologies, Inc. Dba Narda Satellite Networks Div Narda Satellite Networks).

What NSN replaces 4820-01-472-1961?

There are 5 known substitutes for 4820-01-472-1961: 5935-00-259-3323, 6610-01-232-4419, 6240-01-344-4819 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 14590?

Key specifications for 14590: Special Features: LOW PRESSURE; End Item Identification: USED ON ADH-3 COM AUTOMATIC AIR DEHYDRATOR; PART NUMBER: RACK MOUNTED 17479; WALL MOUNTED 17845. 2 total characteristics are documented in the Federal Logistics Information System.

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