PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1/CL. 300/SIZE 1/4 IN.Valve,angle

Manufacturers Standardization Society of the Valve and Fittings Industry Inc · NSN 4820-00-541-0375 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-541-0375 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-541-0375. Primary manufacturer part number: 1/CL. 300/SIZE 1/4 IN..
Features
  • Valve,angle — FSC 4820
  • Flow Control Device: DISK
  • Material Document and Classification: QQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY
  • Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS
  • Material: COPPER ALLOY 922 BODY
  • Bonnet Attachment Method: UNION
  • Valve Operation Method: MANUAL
  • Thread Direction: RIGHT-HAND ALL ENDS
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy 922 Body construction
General Description

The Valve,angle, cataloged under National Stock Number 4820-00-541-0375, 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 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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
NSN4820-00-541-0375
Primary Part Number1/CL. 300/SIZE 1/4 IN.
Item NameValve,angle
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerManufacturers Standardization Society of the Valve and Fittings Industry Inc
StatusCANCELLED
Flow Control DeviceDISK
Material Document and ClassificationQQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY
Connection StylePLAIN,OPTIONAL END(PIPE) ALL ENDS
MaterialCOPPER ALLOY 922 BODY
Bonnet Attachment MethodUNION
Valve Operation MethodMANUAL
Thread DirectionRIGHT-HAND ALL ENDS
MaterialSTEEL FLOW CONTROL DEVICE
Renewable Seat Ring TypeTHREADED
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Style DesignatorANGLE
Nominal Thread Size0.250 INCHES ALL ENDS IN
Thread Series DesignatorNPT ALL ENDS
Material Document and ClassificationASTMA276 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
Specification/standard Data59646-MSS SP-80 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Media for Which DesignedSTEAM SINGLE RESPONSE
MaterialSTEEL CORROSION RESISTING SEAT
Nondefinitive Spec/std Data300PSI CLASS AND 1 TYPE AND A END AND 0.250 SIZE
Maximum Operating Temp425.0 FAHRENHEIT SINGLE RESPONSE DEGF
MaterialCOPPER ALLOY STEM
Bonnet TypeINSIDE SCREW
Operating Pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
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
4820-00-276-8953 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
Cross-Reference Index
Part NumberManufacturer
214C Crane Co Div Valve Div (USA)
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
1/CL. 300/SIZE 1/4 IN. PRIMARY Manufacturers Standardization Society of the Valve and Fittings Industry Inc (USA)
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
4820-00-276-8953INTERCHANGEABLE
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
4820-00-541-0368INTERCHANGEABLE
VALVE,ANGLE
4820-00-541-0369INTERCHANGEABLE
VALVE,GLOBE

Frequently Asked Questions

What is NSN 4820-00-541-0375?

NSN 4820-00-541-0375 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 4820-00-541-0375?

NSN 4820-00-541-0375 has 4 cross-referenced part numbers: 214C (Crane Co Div Valve Div), 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), 1/CL. 300/SIZE 1/4 IN. (Manufacturers Standardization Society of the Valve and Fittings Industry Inc).

What NSN replaces 4820-00-541-0375?

There are 12 known substitutes for 4820-00-541-0375: 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 1/CL. 300/SIZE 1/4 IN.?

Key specifications for 1/CL. 300/SIZE 1/4 IN.: Flow Control Device: DISK; Material Document and Classification: QQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY; Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS; Material: COPPER ALLOY 922 BODY. 23 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-541-0375 still in active supply?

NSN 4820-00-541-0375 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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