PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILV1187Valve,angle

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4820-00-541-0362 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-541-0362 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-541-0362. Primary manufacturer part number: MILV1187.
Features
  • Valve,angle — FSC 4820
  • Media for Which Designed: WATER-OIL-GAS SECOND RESPONSE
  • Material Document and Classification: ASTMA276 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
  • Bonnet Type: INSIDE SCREW
  • Valve Operation Method: MANUAL
  • Maximum Operating Temp: 100.0 FAHRENHEIT SECOND RESPONSE DEGF
  • Bonnet Attachment Method: UNION
  • Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Seat construction
General Description

The Valve,angle, cataloged under National Stock Number 4820-00-541-0362, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN4820-00-541-0362
Primary Part NumberMILV1187
Item NameValve,angle
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Media for Which DesignedWATER-OIL-GAS SECOND RESPONSE
Material Document and ClassificationASTMA276 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
Bonnet TypeINSIDE SCREW
Valve Operation MethodMANUAL
Maximum Operating Temp100.0 FAHRENHEIT SECOND RESPONSE DEGF
Bonnet Attachment MethodUNION
Connection StylePLAIN,OPTIONAL END(PIPE) ALL ENDS
MaterialSTEEL CORROSION RESISTING SEAT
Renewable Seat Ring TypeTHREADED
MaterialCOPPER ALLOY 922 BODY
Material Document and ClassificationQQ-C-390,ALLOYD4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
MaterialCOPPER ALLOY STEM
Nondefinitive Spec/std Data1 TYPE AND 1 STYLE AND 300 CLASS AND 1/2 SIZE
Media for Which DesignedSTEAM FIRST RESPONSE
Nominal Thread Size0.500 INCHES ALL ENDS IN
Operating Pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
Operating Pressure600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
Thread Series DesignatorNPT ALL ENDS
Style DesignatorANGLE
Flow Control DeviceCONE
Maximum Operating Temp550.0 FAHRENHEIT FIRST RESPONSE DEGF
Thread DirectionRIGHT-HAND ALL ENDS
MaterialSTEEL FLOW CONTROL DEVICE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-266-9488 INTERCHANGEABLE
Valve,angle
4820-00-276-8953 INTERCHANGEABLE
Valve,angle
5325-00-424-22794592 INTERCHANGEABLE
Eyelet
Lockheed Martin Corporation Div Rms - Mitchel Field
4820-00-541-036155 INTERCHANGEABLE
Valve,angle
Precision Speed Manufacturing, Llc
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
4820-00-541-0369 INTERCHANGEABLE
Valve,globe
4820-00-541-0370 INTERCHANGEABLE
Valve,globe
Cross-Reference Index
Part NumberManufacturer
MILV1187 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
4592 Ashcroft Inc Dba Heise (USA)
Related Parts
4820-00-266-9488INTERCHANGEABLE
VALVE,ANGLE
4820-00-276-8953INTERCHANGEABLE
VALVE,ANGLE
5325-00-424-2279INTERCHANGEABLE
EYELET
4592
4820-00-541-0361INTERCHANGEABLE
VALVE,ANGLE
55
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
4820-00-541-0371INTERCHANGEABLE
VALVE,GLOBE
TYPE 1/CLASS 300/SIZE 3/4 IN.
4820-00-541-0372INTERCHANGEABLE
VALVE,GLOBE

Frequently Asked Questions

What is NSN 4820-00-541-0362?

NSN 4820-00-541-0362 is a Valve,angle, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-541-0362?

NSN 4820-00-541-0362 has 2 cross-referenced part numbers: MILV1187 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 4592 (Ashcroft Inc Dba Heise).

What NSN replaces 4820-00-541-0362?

There are 12 known substitutes for 4820-00-541-0362: 4820-00-266-9488, 4820-00-276-8953, 5325-00-424-2279 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILV1187?

Key specifications for MILV1187: Media for Which Designed: WATER-OIL-GAS SECOND RESPONSE; Material Document and Classification: ASTMA276 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE; Bonnet Type: INSIDE SCREW; Valve Operation Method: MANUAL. 25 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-541-0362 still in active supply?

NSN 4820-00-541-0362 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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