PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

551919999Valve,safety Relief

Eg and G Rotron Regenerative Blower Opns · NSN 4820-01-564-8498 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-564-8498 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-564-8498. Primary manufacturer part number: 551919999.
Features
  • Valve,safety Relief — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Eg and G Rotron Regenerative Blower Opns
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-564-8498, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Eg and G Rotron Regenerative Blower Opns. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 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)
ManufacturersScienco Fast, Inc. (CAGE 8W173); Eg and G Rotron Regenerative Blower Opns (CAGE 59841)
Technical Specifications
ParameterValue
NSN4820-01-564-8498
Primary Part Number551919999
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEg and G Rotron Regenerative Blower Opns
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4510-01-280-4391B0201 INTERCHANGEABLE
Faucet,double
T and S Brass and Bronze Works Inc
8305-01-545-98747-SPECTRA 1000 NAT INTERCHANGEABLE
Cloth,impregnated
Fabric Development Inc Dba Fabric Development Inc
Cross-Reference Index
Part NumberManufacturer
B0201 Scienco Fast, Inc. (USA)
551919999 PRIMARY Eg and G Rotron Regenerative Blower Opns (USA)
Related Parts
4510-01-280-4391INTERCHANGEABLE
FAUCET,DOUBLE
B0201
8305-01-545-9874INTERCHANGEABLE
CLOTH,IMPREGNATED
7-SPECTRA 1000 NAT

Frequently Asked Questions

What is NSN 4820-01-564-8498?

NSN 4820-01-564-8498 is a Valve,safety Relief, manufactured by Eg and G Rotron Regenerative Blower Opns, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-564-8498?

NSN 4820-01-564-8498 has 2 cross-referenced part numbers: B0201 (Scienco Fast, Inc.), 551919999 (Eg and G Rotron Regenerative Blower Opns).

What NSN replaces 4820-01-564-8498?

There are 2 known substitutes for 4820-01-564-8498: 4510-01-280-4391, 8305-01-545-9874. Verify interchangeability with system specifications before substitution.

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