PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4561-1Stem,needle Valve

Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives · NSN 4820-00-788-7593 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-788-7593 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-788-7593. Primary manufacturer part number: 4561-1.
Features
  • Stem,needle Valve — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Stem,needle Valve, cataloged under National Stock Number 4820-00-788-7593, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-788-7593
Primary Part Number4561-1
Item NameStem,needle Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSiemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5925-00-175-2580 INTERCHANGEABLE
Circuit Breaker
5110-00-221-1074 INTERCHANGEABLE
Chisel,blacksmith's
5930-00-410-7755 INTERCHANGEABLE
Switch,rotary
4730-00-493-841245611 INTERCHANGEABLE
Strainer Element,sediment
Allianz Sweeper Company
5365-01-375-132745611 INTERCHANGEABLE
Spacer,plate
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
1730-01-384-2193819 INTERCHANGEABLE
Trailer,lift,ground Handling
Pdi Ground Support Systems, Inc.
2925-01-439-445146734 INTERCHANGEABLE
Lead,ignition,engine
Unison Industries Llc
5133-01-443-631045611 INTERCHANGEABLE
Drill,twist
Precision Twist Drill Co
5940-01-624-4888 INTERCHANGEABLE
Terminal,lug
Cross-Reference Index
Part NumberManufacturer
8880-22PC28 Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA)
4561-1 Siemens Moore Process Automation (GBR)
4561-1 PRIMARY Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA)
Related Parts
5925-00-175-2580INTERCHANGEABLE
CIRCUIT BREAKER
5110-00-221-1074INTERCHANGEABLE
CHISEL,BLACKSMITH'S
5930-00-410-7755INTERCHANGEABLE
SWITCH,ROTARY
4730-00-493-8412INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
45611
5365-01-375-1327INTERCHANGEABLE
SPACER,PLATE
45611
1730-01-384-2193INTERCHANGEABLE
TRAILER,LIFT,GROUND HANDLING
819
2925-01-439-4451INTERCHANGEABLE
LEAD,IGNITION,ENGINE
46734
5133-01-443-6310INTERCHANGEABLE
DRILL,TWIST
45611
5940-01-624-4888INTERCHANGEABLE
TERMINAL,LUG

Frequently Asked Questions

What is NSN 4820-00-788-7593?

NSN 4820-00-788-7593 is a Stem,needle Valve, manufactured by Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-788-7593?

NSN 4820-00-788-7593 has 3 cross-referenced part numbers: 8880-22PC28 (Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives), 4561-1 (Siemens Moore Process Automation), 4561-1 (Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives).

What NSN replaces 4820-00-788-7593?

There are 9 known substitutes for 4820-00-788-7593: 5925-00-175-2580, 5110-00-221-1074, 5930-00-410-7755 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4561-1?

Key specifications for 4561-1: Special Features: ONE 4505-10-G PIVOT LINK,ONE 4505-11-G ZERO SCREW,ONE 4320-11-G ZERO ADJ. KNOB,ONE 4505-4-G VALVE STEM. 1 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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