PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1C1787-10Valve,angle

General Electric Company · NSN 4820-00-541-0933 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-541-0933 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-541-0933. Primary manufacturer part number: 1C1787-10.
Features
  • Valve,angle — FSC 4820
  • Flow Control Device: DISK
  • Thread Direction: RIGHT-HAND FIRST END
  • Connection Type: THREADED INTERNAL PIPE FIRST END
  • Valve Operation Method: MANUAL
  • Features Provided: BONNET PACKING
  • Bonnet Attachment Method: THREADED
  • Thread Quantity Per Inch: 4-1/2 FIRST END
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 4820-00-541-0933, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is General Electric Company. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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: Active.

Technical Specifications
ParameterValue
NSN4820-00-541-0933
Primary Part Number1C1787-10
Item NameValve,angle
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGeneral Electric Company
StatusACTIVE
Flow Control DeviceDISK
Thread DirectionRIGHT-HAND FIRST END
Connection TypeTHREADED INTERNAL PIPE FIRST END
Valve Operation MethodMANUAL
Features ProvidedBONNET PACKING
Bonnet Attachment MethodTHREADED
Thread Quantity Per Inch4-1/2 FIRST END
Nominal Thread Size2.000 INCHES FIRST END IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) FIRST END
Style DesignatorANGLE
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Bonnet TypeINSIDE SCREW
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY PACS ACLG AND ACLJ
Renewable Seat Ring TypeTHREADED
MaterialCOPPER ALLOY OVERALL
Connection StylePLAIN,OPTIONAL END(PIPE) FIRST END
Nominal Pipe Size Accommodated2.000 INCHES FIRST END IN
Maximum Operating Temp358.0 FAHRENHEIT SINGLE RESPONSE DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6630-00-074-0394 INTERCHANGEABLE
Test Set,chromate
6515-00-104-8714 INTERCHANGEABLE
Surgical Pack,disposable
5305-00-146-57014430 INTERCHANGEABLE
Screw,shoulder
Roller Bearing Co of America, Inc Div Pic Design
2640-00-242-76184430 INTERCHANGEABLE
Valve Extension,tire
Schrader-Bridgeport International Inc Dba Schrader Automotive
6115-00-659-27864430 INTERCHANGEABLE
Converter,frequency,meter
Precision Electronics, Inc
6240-00-752-2424 INTERCHANGEABLE
Lamp,incandescent
4820-00-801-1706 INTERCHANGEABLE
Valve,angle
4820-00-809-1709 INTERCHANGEABLE
Valve,angle
5905-00-843-92934430 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
5935-00-846-8665MS3108R14S7S INTERCHANGEABLE
Connector,plug,electrical
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
1C1787-10 General Electric Company (USA)
4430 Ashcroft Inc Dba Heise (USA)
1C1787-10 General Electric Company (USA)
Related Parts
6630-00-074-0394INTERCHANGEABLE
TEST SET,CHROMATE
6515-00-104-8714INTERCHANGEABLE
SURGICAL PACK,DISPOSABLE
5305-00-146-5701INTERCHANGEABLE
SCREW,SHOULDER
4430
2640-00-242-7618INTERCHANGEABLE
VALVE EXTENSION,TIRE
4430
6115-00-659-2786INTERCHANGEABLE
CONVERTER,FREQUENCY,METER
4430
6240-00-752-2424INTERCHANGEABLE
LAMP,INCANDESCENT
4820-00-801-1706INTERCHANGEABLE
VALVE,ANGLE
4820-00-809-1709INTERCHANGEABLE
VALVE,ANGLE
5905-00-843-9293INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
4430
5935-00-846-8665INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
MS3108R14S7S
5905-00-936-6061INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
6625-00-964-9696INTERCHANGEABLE
AMMETER
4430

Frequently Asked Questions

What is NSN 4820-00-541-0933?

NSN 4820-00-541-0933 is a Valve,angle, manufactured by General Electric Company, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-541-0933?

NSN 4820-00-541-0933 has 3 cross-referenced part numbers: 1C1787-10 (General Electric Company), 4430 (Ashcroft Inc Dba Heise), 1C1787-10 (General Electric Company).

What NSN replaces 4820-00-541-0933?

There are 12 known substitutes for 4820-00-541-0933: 6630-00-074-0394, 6515-00-104-8714, 5305-00-146-5701 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1C1787-10?

Key specifications for 1C1787-10: Flow Control Device: DISK; Thread Direction: RIGHT-HAND FIRST END; Connection Type: THREADED INTERNAL PIPE FIRST END; Valve Operation Method: MANUAL. 18 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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