PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

300945Valve,safety Relief

Mega Corp. · NSN 4820-01-589-7162 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-589-7162 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-589-7162. Primary manufacturer part number: 300945.
Features
  • Valve,safety Relief — FSC 4820
  • Media for Which Designed: AIR SINGLE RESPONSE
  • Mounting Facility: PANEL
  • Material: BRONZE BODY
  • Style Designator: STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.
  • 1 verified cross-reference
  • Primary manufacturer: Mega Corp.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Bronze Body construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-589-7162, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Mega Corp.. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-589-7162
Primary Part Number300945
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMega Corp.
StatusACTIVE
Media for Which DesignedAIR SINGLE RESPONSE
Mounting FacilityPANEL
MaterialBRONZE BODY
Style DesignatorSTRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5330-00-383-6233D16089 INTERCHANGEABLE
Seal Ring,metal
Crane Co Div Valve Div
5945-01-149-5114 INTERCHANGEABLE
Relay,reed
5962-01-390-6600300945 INTERCHANGEABLE
Microcircuit,memory
Northrop Grumman Systems Corporation
Cross-Reference Index
Part NumberManufacturer
300945 PRIMARY Mega Corp. (USA)
Related Parts
5330-00-383-6233INTERCHANGEABLE
SEAL RING,METAL
D16089
5945-01-149-5114INTERCHANGEABLE
RELAY,REED
5962-01-390-6600INTERCHANGEABLE
MICROCIRCUIT,MEMORY
300945

Frequently Asked Questions

What is NSN 4820-01-589-7162?

NSN 4820-01-589-7162 is a Valve,safety Relief, manufactured by Mega Corp., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-589-7162?

NSN 4820-01-589-7162 has 1 cross-referenced part number: 300945 (Mega Corp.).

What NSN replaces 4820-01-589-7162?

There are 3 known substitutes for 4820-01-589-7162: 5330-00-383-6233, 5945-01-149-5114, 5962-01-390-6600. Verify interchangeability with system specifications before substitution.

What are the specifications of 300945?

Key specifications for 300945: Media for Which Designed: AIR SINGLE RESPONSE; Mounting Facility: PANEL; Part Name Assigned by Controlling Agency: VALVE PRESSURE PROTECTION; End Item Identification: PNEUMATIC SOLENOID BOX. 6 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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