PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55400-5900-871189ALT4PC6412Valve,angle

Naval Sea Systems Command · NSN 4820-00-473-4879 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-473-4879 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-473-4879. Primary manufacturer part number: 55400-5900-871189ALT4PC6412.
Features
  • Valve,angle — FSC 4820
  • Connection Style: SOCKET ALL ENDSSOCKET ALL ENDS
  • Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Valve Operation Method: MANUALMANUAL
  • Style Designator: ANGLE
  • Media for Which Designed: AIR SINGLE RESPONSE
  • Bonnet Attachment Method: THREADEDTHREADED
  • Bonnet Type: INSIDE SCREWINSIDE SCREW
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Overall construction
General Description

The Valve,angle, cataloged under National Stock Number 4820-00-473-4879, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 19 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-473-4879
Primary Part Number55400-5900-871189ALT4PC6412
Item NameValve,angle
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Connection StyleSOCKET ALL ENDSSOCKET ALL ENDS
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Valve Operation MethodMANUALMANUAL
Style DesignatorANGLE
Media for Which DesignedAIR SINGLE RESPONSE
Bonnet Attachment MethodTHREADEDTHREADED
Bonnet TypeINSIDE SCREWINSIDE SCREW
MaterialCOPPER ALLOY OVERALL
Connection TypeUNTHREADED INTERNAL PIPE FIRST ENDUNTHREADED INTERNAL PIPE FIRST END
Flow Control DeviceDISKDISK
Nominal Pipe Size Accommodated0.375 INCHES ALL ENDS0.375 INCHES ALL ENDS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2590-00-045-37976412 INTERCHANGEABLE
Parts Kit,horn Button Switch
Eaton Corporation Div Eaton Fluid Power
3110-00-144-8556 INTERCHANGEABLE
Bearing,ball,annular
5999-00-222-014813182 INTERCHANGEABLE
Cap,electrical
Roanwell, Llc
5910-00-243-631360-0725-20003-902 INTERCHANGEABLE
Capacitor,variable,air Dielectri
Tronser, Inc Dba Tronser Inc
5365-00-270-21415A7044 INTERCHANGEABLE
Spacer,ring
Napco International Llc Dba Napco International Inc
5310-00-333-73278329336 INTERCHANGEABLE
Nut
U S Army Tank Automotive Command Amsta-Im-Mm
5915-00-488-33172921066-2 INTERCHANGEABLE
Filter,band Pass
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5985-00-880-2134641-2 INTERCHANGEABLE
Waveguide Assembly
Waveline Inc
5305-01-044-83436412 INTERCHANGEABLE
Screw,machine
Unity Manufacturing Co
5945-01-084-5032641-2 INTERCHANGEABLE
Relay,solid State
Teledyne Defense Electronics, Llc Dba Teledyne Relays Div Https://www.teledyne.com/what-We-Do/
Cross-Reference Index
Part NumberManufacturer
SK5031NBPC421 Henry Technologies, Inc. (USA)
SK5031NAPC421 Henry Technologies, Inc. (USA)
6412 Henry Technologies, Inc. (USA)
55400-5900-871189ALT4PC6412 PRIMARY Naval Sea Systems Command (USA)
253-59-038PC421 PRIMARY Naval Sea Systems Command (USA)
228-59-05PC421 Naval Ship Systems Command (USA)
55400-5900-871189ALT4PC6412 Naval Ship Systems Command (USA)
228-59-05PC421 PRIMARY Naval Sea Systems Command (USA)
253-59-038PC421 Naval Ship Systems Command (USA)
SK5058NALT4PC6412 Henry Technologies, Inc. (USA)
478-5901-72417ALT1PCV35 PRIMARY Naval Sea Systems Command (USA)
478-5901-72417ALT1PCV35 Naval Ship Systems Command (USA)
SK5031NCPC421 Henry Technologies, Inc. (USA)
214-5901-799290REV3PCV2 PRIMARY Naval Sea Systems Command (USA)
214-5901-799290REV3PCV2 Naval Ship Systems Command (USA)
50716-478PCV35 PRIMARY Portsmouth Naval Shipyard (USA)
212-59-038PC421 PRIMARY Naval Sea Systems Command (USA)
212-59-038PC421 Naval Ship Systems Command (USA)
SK500-2 Henry Technologies, Inc. (USA)
Related Parts
2590-00-045-3797INTERCHANGEABLE
PARTS KIT,HORN BUTTON SWITCH
6412
3110-00-144-8556INTERCHANGEABLE
BEARING,BALL,ANNULAR
5999-00-222-0148INTERCHANGEABLE
CAP,ELECTRICAL
13182
5910-00-243-6313INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
60-0725-20003-902
5365-00-270-2141INTERCHANGEABLE
SPACER,RING
5A7044
5310-00-333-7327INTERCHANGEABLE
NUT
8329336
5915-00-488-3317INTERCHANGEABLE
FILTER,BAND PASS
2921066-2
5985-00-880-2134INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
641-2
5305-01-044-8343INTERCHANGEABLE
SCREW,MACHINE
6412
5945-01-084-5032INTERCHANGEABLE
RELAY,SOLID STATE
641-2
4730-01-242-6381INTERCHANGEABLE
FLANGE,PIPE
6515-01-325-8767INTERCHANGEABLE
INTRAVENOUS INJECTION SET
6412

Frequently Asked Questions

What is NSN 4820-00-473-4879?

NSN 4820-00-473-4879 is a Valve,angle, manufactured by Naval Sea Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-473-4879?

NSN 4820-00-473-4879 has 19 cross-referenced part numbers: SK5031NBPC421 (Henry Technologies, Inc.), SK5031NAPC421 (Henry Technologies, Inc.), 6412 (Henry Technologies, Inc.), 55400-5900-871189ALT4PC6412 (Naval Sea Systems Command), 253-59-038PC421 (Naval Sea Systems Command) and 14 more.

What NSN replaces 4820-00-473-4879?

There are 12 known substitutes for 4820-00-473-4879: 2590-00-045-3797, 3110-00-144-8556, 5999-00-222-0148 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 55400-5900-871189ALT4PC6412?

Key specifications for 55400-5900-871189ALT4PC6412: Connection Style: SOCKET ALL ENDSSOCKET ALL ENDS; Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Valve Operation Method: MANUALMANUAL; Style Designator: ANGLE. 11 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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