PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MSS SP-80Valve,angle

Manufacturers Standardization Society of the Valve and Fittings Industry Inc · NSN 4820-00-276-8953 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-276-8953 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-276-8953. Primary manufacturer part number: MSS SP-80.
Features
  • Valve,angle — FSC 4820
  • Material: COPPER ALLOY OR NICKEL ALLOY SEAT
  • Connection Type: THREADED INTERNAL PIPE ALL ENDS
  • Bonnet Type: INSIDE SCREW
  • Thread Direction: RIGHT-HAND ALL ENDS
  • Features Provided: BONNET PACKING
  • Bonnet Attachment Method: THREADED
  • Media for Which Designed: AIR FIRST RESPONSE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy or Nickel Alloy Seat construction
General Description

The Valve,angle, cataloged under National Stock Number 4820-00-276-8953, 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 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-276-8953
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 OR NICKEL ALLOY SEAT
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Bonnet TypeINSIDE SCREW
Thread DirectionRIGHT-HAND ALL ENDS
Features ProvidedBONNET PACKING
Bonnet Attachment MethodTHREADED
Media for Which DesignedAIR FIRST RESPONSE
Maximum Operating Temp425.0 FAHRENHEIT SINGLE RESPONSE DEGF
MaterialNICKEL ALLOY FLOW CONTROL DEVICE
MaterialCOPPER ALLOY BODY
Thread Series DesignatorNPT ALL ENDS
Style DesignatorANGLE
Nominal Thread Size2.000 INCHES ALL ENDS IN
Nondefinitive Spec/std Data1 TYPE
Media for Which DesignedWATER, FRESH THIRD RESPONSE
Operating Pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Media for Which DesignedSTEAM SECOND RESPONSE
MaterialNICKEL ALLOY STEM
Connection StylePLAIN,OPTIONAL END(PIPE) ALL ENDS
Valve Operation MethodMANUAL
Flow Control DeviceDISK
Renewable Seat Ring TypeTHREADED
Thread Quantity Per Inch11-1/2 ALL ENDS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6625-00-005-1665214C INTERCHANGEABLE
Voltmeter
North Atlantic Industries, Inc. Dba North Atlantic Industries
4820-00-203-8242 INTERCHANGEABLE
Valve,angle
4820-00-266-9488 INTERCHANGEABLE
Valve,angle
4820-00-273-8518BDE1S5101-5ALT2PC45 INTERCHANGEABLE
Valve,angle
Naval Ship Systems Command
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
4820-00-541-0368 INTERCHANGEABLE
Valve,angle
Cross-Reference Index
Part NumberManufacturer
MSS SP-80 Manufacturers Standardization Society of the Valve and Fittings Industry Inc (USA)
803 Jenkins Bros (USA)
214C Crane Co Div Valve Div (USA)
MILV1187 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6625-00-005-1665INTERCHANGEABLE
VOLTMETER
214C
4820-00-203-8242INTERCHANGEABLE
VALVE,ANGLE
4820-00-266-9488INTERCHANGEABLE
VALVE,ANGLE
4820-00-273-8518INTERCHANGEABLE
VALVE,ANGLE
BDE1S5101-5ALT2PC45
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
4820-00-541-0368INTERCHANGEABLE
VALVE,ANGLE
4820-00-541-0369INTERCHANGEABLE
VALVE,GLOBE
4820-00-541-0370INTERCHANGEABLE
VALVE,GLOBE

Frequently Asked Questions

What is NSN 4820-00-276-8953?

NSN 4820-00-276-8953 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 4820-00-276-8953?

NSN 4820-00-276-8953 has 4 cross-referenced part numbers: MSS SP-80 (Manufacturers Standardization Society of the Valve and Fittings Industry Inc), 803 (Jenkins Bros), 214C (Crane Co Div Valve Div), MILV1187 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4820-00-276-8953?

There are 12 known substitutes for 4820-00-276-8953: 6625-00-005-1665, 4820-00-203-8242, 4820-00-266-9488 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 OR NICKEL ALLOY SEAT; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Bonnet Type: INSIDE SCREW; Thread Direction: RIGHT-HAND ALL ENDS. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-276-8953 still in active supply?

NSN 4820-00-276-8953 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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