PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21205Valve,angle

Haskel International, Llc Dba Haskel International, Llc · NSN 4820-00-813-3959 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-813-3959 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-813-3959. Primary manufacturer part number: 21205.
Features
  • Valve,angle — FSC 4820
  • Connection Style: GASKET SEAL(BOSS) FIRST END
  • Thread Class: 3B ALL ENDS
  • Valve Operation Method: MANUAL
  • Bonnet Type: INSIDE SCREW
  • Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE
  • Thread Series Designator: UNF ALL ENDS
  • Flow Control Device: NEEDLE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Valve,angle, cataloged under National Stock Number 4820-00-813-3959, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Haskel International, Llc Dba Haskel International, Llc. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-813-3959
Primary Part Number21205
Item NameValve,angle
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHaskel International, Llc Dba Haskel International, Llc
StatusACTIVE
Connection StyleGASKET SEAL(BOSS) FIRST END
Thread Class3B ALL ENDS
Valve Operation MethodMANUAL
Bonnet TypeINSIDE SCREW
Media for Which DesignedWATER-OIL-GAS SINGLE RESPONSE
Thread Series DesignatorUNF ALL ENDS
Flow Control DeviceNEEDLE
Thread DirectionLEFT-HAND FIRST END
Connection TypeTHREADED INTERNAL BOSS ALL ENDS
Nominal Outside Diameter Tube Accommodated0.375 INCHES ALL ENDS IN
Thread DirectionLEFT-HAND ALL ENDS
Features ProvidedBONNET PACKING
Operating Pressure20000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Surface TreatmentPASSIVATE
Style DesignatorANGLE
Nominal Thread Size0.562 INCHES ALL ENDS IN
Bonnet Attachment MethodTHREADED
MaterialSTEEL CORROSION RESISTING OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5935-00-257-7049SM-C-208815-4 INTERCHANGEABLE
Connector,receptacle,electrical
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5935-00-303-0729SE93-084B-4N INTERCHANGEABLE
Backshell,electrical Connector
Joslyn Sunbank Company, Llc Dba Joslyn Sunbank Co Llc
4820-00-734-082023018524 INTERCHANGEABLE
Valve Assembly,cont
Allison Transmission Inc Dba Allison Transmission, Inc
4330-00-779-5741 INTERCHANGEABLE
Filter Element,fluid
3120-01-095-309021205 INTERCHANGEABLE
Bearing Cap,actuato
Moog Inc. Dba Ampac-Isp Corp
2530-01-160-35572-X-81 INTERCHANGEABLE
Spindle,wheel,driving-Nondriving
Pdi Ground Support Systems, Inc.
5342-01-164-080421205 INTERCHANGEABLE
Bracket
L3 Technologies, Inc. Div Communication Systems-West
3040-01-206-8247 INTERCHANGEABLE
Cylinder,actuating,linear
Cross-Reference Index
Part NumberManufacturer
21205 Haskel International, Llc Dba Haskel International, Llc (USA)
Related Parts
5935-00-257-7049INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
SM-C-208815-4
5935-00-303-0729INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
SE93-084B-4N
4820-00-734-0820INTERCHANGEABLE
VALVE ASSEMBLY,CONT
23018524
4330-00-779-5741INTERCHANGEABLE
FILTER ELEMENT,FLUID
3120-01-095-3090INTERCHANGEABLE
BEARING CAP,ACTUATO
21205
2530-01-160-3557INTERCHANGEABLE
SPINDLE,WHEEL,DRIVING-NONDRIVING
2-X-81
5342-01-164-0804INTERCHANGEABLE
BRACKET
21205
3040-01-206-8247INTERCHANGEABLE
CYLINDER,ACTUATING,LINEAR

Frequently Asked Questions

What is NSN 4820-00-813-3959?

NSN 4820-00-813-3959 is a Valve,angle, manufactured by Haskel International, Llc Dba Haskel International, Llc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-813-3959?

NSN 4820-00-813-3959 has 1 cross-referenced part number: 21205 (Haskel International, Llc Dba Haskel International, Llc).

What NSN replaces 4820-00-813-3959?

There are 8 known substitutes for 4820-00-813-3959: 5935-00-257-7049, 5935-00-303-0729, 4820-00-734-0820 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21205?

Key specifications for 21205: Connection Style: GASKET SEAL(BOSS) FIRST END; Thread Class: 3B ALL ENDS; Valve Operation Method: MANUAL; Bonnet Type: INSIDE SCREW. 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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