PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MSS-SP-80Valve,angle

Manufacturers Standardization Society of the Valve and Fittings Industry Inc · NSN 4820-00-541-0368 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-541-0368 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-541-0368. Primary manufacturer part number: MSS-SP-80.
Features
  • Valve,angle — FSC 4820
  • Material: COPPER ALLOY STEM
  • Specification/standard Data: 59646-MSS-SP-80 MANUFACTURERS STANDARD
  • Material: STEEL FLOW CONTROL DEVICE
  • Material Document and Classification: ASTMA276 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
  • Valve Operation Method: MANUAL
  • Operating Pressure: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Material Document and Classification: QQ-C-390,ALLOYD4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Stem construction
General Description

The Valve,angle, cataloged under National Stock Number 4820-00-541-0368, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Manufacturers Standardization Society of the Valve and Fittings Industry Inc. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-541-0368
Primary Part NumberMSS-SP-80
Item NameValve,angle
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerManufacturers Standardization Society of the Valve and Fittings Industry Inc
StatusCANCELLED
MaterialCOPPER ALLOY STEM
Specification/standard Data59646-MSS-SP-80 MANUFACTURERS STANDARD
MaterialSTEEL FLOW CONTROL DEVICE
Material Document and ClassificationASTMA276 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
Valve Operation MethodMANUAL
Operating Pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Material Document and ClassificationQQ-C-390,ALLOYD4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY
Bonnet Attachment MethodUNION
Media for Which DesignedAIR FIRST RESPONSE
Renewable Seat Ring TypeTHREADED
Thread Series DesignatorNPT ALL ENDS
Connection StylePLAIN,OPTIONAL END(PIPE) ALL ENDS
Bonnet TypeINSIDE SCREW
Maximum Operating Temp425.0 FAHRENHEIT SINGLE RESPONSE DEGF
MaterialCOPPER ALLOY SEAT
Nominal Thread Size1.000 INCHES ALL ENDS IN
Nondefinitive Spec/std Data300 CLASS AND NPT END AND 1.000 SIZE AND 1 TYPE
Test Data Document81349-MIL-V-1187 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Style DesignatorANGLE
MaterialCOPPER ALLOY 922 BODY
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Flow Control DeviceDISK
Thread DirectionRIGHT-HAND ALL ENDS
Media for Which DesignedSTEAM SECOND RESPONSE
Media for Which DesignedWATER, FRESH THIRD RESPONSE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-266-9488 INTERCHANGEABLE
Valve,angle
4820-00-276-8953 INTERCHANGEABLE
Valve,angle
4820-00-541-036155 INTERCHANGEABLE
Valve,angle
Precision Speed Manufacturing, Llc
4820-00-541-0362 INTERCHANGEABLE
Valve,angle
4820-00-541-0363MSS SP-80 TYP3,CL 300,SZ 1/4IN INTERCHANGEABLE
Valve,globe
Manufacturers Standardization Society of the Valve and Fittings Industry Inc
4820-00-541-0366TY1,CL300,SZ1.5IN INTERCHANGEABLE
Valve,angle
Manufacturers Standardization Society of the Valve and Fittings Industry Inc
4820-00-541-0367 INTERCHANGEABLE
Valve,angle
4820-00-541-0369 INTERCHANGEABLE
Valve,globe
4820-00-541-0370 INTERCHANGEABLE
Valve,globe
4820-00-541-0371TYPE 1/CLASS 300/SIZE 3/4 IN. INTERCHANGEABLE
Valve,globe
Manufacturers Standardization Society of the Valve and Fittings Industry Inc
Cross-Reference Index
Part NumberManufacturer
MSS-SP-80 Manufacturers Standardization Society of the Valve and Fittings Industry Inc (USA)
MILV1187 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-V-1187TYPEB Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
4820-00-266-9488INTERCHANGEABLE
VALVE,ANGLE
4820-00-276-8953INTERCHANGEABLE
VALVE,ANGLE
4820-00-541-0361INTERCHANGEABLE
VALVE,ANGLE
55
4820-00-541-0362INTERCHANGEABLE
VALVE,ANGLE
4820-00-541-0363INTERCHANGEABLE
VALVE,GLOBE
MSS SP-80 TYP3,CL 300,SZ 1/4IN
4820-00-541-0366INTERCHANGEABLE
VALVE,ANGLE
TY1,CL300,SZ1.5IN
4820-00-541-0367INTERCHANGEABLE
VALVE,ANGLE
4820-00-541-0369INTERCHANGEABLE
VALVE,GLOBE
4820-00-541-0370INTERCHANGEABLE
VALVE,GLOBE
4820-00-541-0371INTERCHANGEABLE
VALVE,GLOBE
TYPE 1/CLASS 300/SIZE 3/4 IN.
4820-00-541-0372INTERCHANGEABLE
VALVE,GLOBE
4820-00-541-0373INTERCHANGEABLE
VALVE,GLOBE

Frequently Asked Questions

What is NSN 4820-00-541-0368?

NSN 4820-00-541-0368 is a Valve,angle, manufactured by Manufacturers Standardization Society of the Valve and Fittings Industry Inc, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-541-0368?

NSN 4820-00-541-0368 has 3 cross-referenced part numbers: MSS-SP-80 (Manufacturers Standardization Society of the Valve and Fittings Industry Inc), MILV1187 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-V-1187TYPEB (Naval Inventory Control Point Mechanicsburg).

What NSN replaces 4820-00-541-0368?

There are 12 known substitutes for 4820-00-541-0368: 4820-00-266-9488, 4820-00-276-8953, 4820-00-541-0361 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MSS-SP-80?

Key specifications for MSS-SP-80: Material: COPPER ALLOY STEM; Specification/standard Data: 59646-MSS-SP-80 MANUFACTURERS STANDARD; Material: STEEL FLOW CONTROL DEVICE; Material Document and Classification: ASTMA276 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE. 26 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-541-0368 still in active supply?

NSN 4820-00-541-0368 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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