PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5903Valve,angle

Dragon Valves Inc · NSN 4820-00-249-4203 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-249-4203 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-249-4203. Primary manufacturer part number: 5903.
Features
  • Valve,angle — FSC 4820
  • Connection Style: PLAIN (PIPE) SECOND END
  • Bonnet Attachment Method: THREADED
  • Valve Operation Method: MANUAL
  • Connection Type: THREADED INTERNAL PIPE FIRST END
  • Flow Control Device: NEEDLE
  • Thread Direction: RIGHT-HAND ALL ENDS
  • Bonnet Type: INSIDE SCREW
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Overall construction
General Description

The Valve,angle, cataloged under National Stock Number 4820-00-249-4203, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Dragon Valves Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 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
NSN4820-00-249-4203
Primary Part Number5903
Item NameValve,angle
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDragon Valves Inc
StatusACTIVE
Connection StylePLAIN (PIPE) SECOND END
Bonnet Attachment MethodTHREADED
Valve Operation MethodMANUAL
Connection TypeTHREADED INTERNAL PIPE FIRST END
Flow Control DeviceNEEDLE
Thread DirectionRIGHT-HAND ALL ENDS
Bonnet TypeINSIDE SCREW
Nominal Thread Size0.250 INCHES ALL ENDS IN
Connection StylePLAIN,OPTIONAL END(PIPE) FIRST END
Test Data Document97403-13211E7842 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
MaterialSTEEL OVERALL
Style DesignatorANGLE
Thread Series DesignatorNPTF ALL ENDS
Nominal Pipe Size Accommodated0.250 INCHES ALL ENDS IN
Operating Pressure3500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Media for Which DesignedWATER-OIL-GAS SINGLE RESPONSE
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-154-836324226 INTERCHANGEABLE
Seal,plain Encased
Dressta North America Ltd
3040-00-364-6834005903 INTERCHANGEABLE
Shaft,straight
Caterpillar Inc Div Caterpillar Defense
2530-00-450-9292 INTERCHANGEABLE
Kingpin Set
5330-00-496-006675G13517-100 INTERCHANGEABLE
Gasket
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5960-00-548-8905 INTERCHANGEABLE
Electron Tube
6685-00-851-45772050W-BT INTERCHANGEABLE
Thermometer,self-Indicating
Kessler Thermometer Corp Dba Kessler Thermometers Corp
5970-01-004-33777100005956 INTERCHANGEABLE
Termination Kit
3m Company
5960-01-022-5288 INTERCHANGEABLE
Electron Tube
5305-01-183-5689590-3 INTERCHANGEABLE
Screw,instrument
Ashcroft Inc Dba Heise
6505-01-560-1571 INTERCHANGEABLE
Sodium Chloride Injection
Cross-Reference Index
Part NumberManufacturer
D7884-58-26 Outboard Marine Corp Johnson Motors Div (USA)
D7884-58-26 Evinrude Motors Product Group of Outboard Marine Corp (USA)
5903 PRIMARY Dragon Valves Inc (USA)
D7884-58-26 Marathon Steel Co Sub of Marathon Mfg Co (USA)
13211E7842 PRIMARY Cecom Lr Center (USA)
Related Parts
5330-00-154-8363INTERCHANGEABLE
SEAL,PLAIN ENCASED
24226
3040-00-364-6834INTERCHANGEABLE
SHAFT,STRAIGHT
005903
2530-00-450-9292INTERCHANGEABLE
KINGPIN SET
5330-00-496-0066INTERCHANGEABLE
GASKET
75G13517-100
5960-00-548-8905INTERCHANGEABLE
ELECTRON TUBE
6685-00-851-4577INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
2050W-BT
5970-01-004-3377INTERCHANGEABLE
TERMINATION KIT
7100005956
5960-01-022-5288INTERCHANGEABLE
ELECTRON TUBE
5305-01-183-5689INTERCHANGEABLE
SCREW,INSTRUMENT
590-3
6505-01-560-1571INTERCHANGEABLE
SODIUM CHLORIDE INJECTION
5640-01-662-5600INTERCHANGEABLE
INSULATION TAPE,THERMAL
2530-01-727-2862INTERCHANGEABLE
HUB,WHEEL,VEHICULAR
590-3

Frequently Asked Questions

What is NSN 4820-00-249-4203?

NSN 4820-00-249-4203 is a Valve,angle, manufactured by Dragon Valves Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-249-4203?

NSN 4820-00-249-4203 has 5 cross-referenced part numbers: D7884-58-26 (Outboard Marine Corp Johnson Motors Div), D7884-58-26 (Evinrude Motors Product Group of Outboard Marine Corp), 5903 (Dragon Valves Inc), D7884-58-26 (Marathon Steel Co Sub of Marathon Mfg Co), 13211E7842 (Cecom Lr Center).

What NSN replaces 4820-00-249-4203?

There are 12 known substitutes for 4820-00-249-4203: 5330-00-154-8363, 3040-00-364-6834, 2530-00-450-9292 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5903?

Key specifications for 5903: Connection Style: PLAIN (PIPE) SECOND END; Bonnet Attachment Method: THREADED; Valve Operation Method: MANUAL; Connection Type: THREADED INTERNAL PIPE FIRST END. 17 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com