PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

450CValve,safety Relief

Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions · NSN 4820-01-544-5248 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-544-5248 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-544-5248. Primary manufacturer part number: 450C.
Features
  • Valve,safety Relief — FSC 4820
  • 7 verified cross-references
  • Primary manufacturer: Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-544-5248, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions. This item has 7 commercial cross-references from 3 manufacturers, 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
NSN4820-01-544-5248
Primary Part Number450C
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5961-00-862-978510519150 INTERCHANGEABLE
Semiconductor Device,diode
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
4820-01-499-5988453036R2 INTERCHANGEABLE
Valve,safety Relief
Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
4820-01-544-5234 INTERCHANGEABLE
Valve,check
Cross-Reference Index
Part NumberManufacturer
450C Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA)
PL12498531 Siemens Energy, Inc. Dba Dresser-Rand (USA)
PL12498531PC329 Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
PL12498531PC329 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA)
450C Siemens Energy, Inc. Dba Dresser-Rand (USA)
PL12498531PC329 Siemens Energy, Inc. Dba Dresser-Rand (USA)
450C PRIMARY Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
Related Parts
5961-00-862-9785INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
10519150
4820-01-499-5988INTERCHANGEABLE
VALVE,SAFETY RELIEF
453036R2
4820-01-544-5234INTERCHANGEABLE
VALVE,CHECK

Frequently Asked Questions

What is NSN 4820-01-544-5248?

NSN 4820-01-544-5248 is a Valve,safety Relief, manufactured by Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-544-5248?

NSN 4820-01-544-5248 has 7 cross-referenced part numbers: 450C (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), PL12498531 (Siemens Energy, Inc. Dba Dresser-Rand), PL12498531PC329 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), PL12498531PC329 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), 450C (Siemens Energy, Inc. Dba Dresser-Rand) and 2 more.

What NSN replaces 4820-01-544-5248?

There are 3 known substitutes for 4820-01-544-5248: 5961-00-862-9785, 4820-01-499-5988, 4820-01-544-5234. Verify interchangeability with system specifications before substitution.

What are the specifications of 450C?

Key specifications for 450C: End Item Identification: AIR COMPRESSOR FOR SHALLOW WATER INFLUENCE MINE SYSTEM; Part Name Assigned by Controlling Agency: VALVE, BLOWOFF COMP.. 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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