PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

94-191Valve,angle

Johnson Controls Navy Systems, Llc · NSN 4820-00-428-2501 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-428-2501 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-428-2501. Primary manufacturer part number: 94-191.
Features
  • Valve,angle — FSC 4820
  • Bonnet Attachment Method: THREADED
  • Bonnet Type: INSIDE SCREW
  • Valve Operation Method: MANUAL
  • Nominal Thread Size: 0.250 INCHES SECOND END IN
  • Nominal Thread Size: 0.250 INCHES FIRST END IN
  • Thread Direction: RIGHT-HAND FIRST END
  • Style Designator: ANGLE
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 4820-00-428-2501, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Johnson Controls Navy Systems, Llc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-428-2501
Primary Part Number94-191
Item NameValve,angle
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerJohnson Controls Navy Systems, Llc
StatusACTIVE
Bonnet Attachment MethodTHREADED
Bonnet TypeINSIDE SCREW
Valve Operation MethodMANUAL
Nominal Thread Size0.250 INCHES SECOND END IN
Nominal Thread Size0.250 INCHES FIRST END IN
Thread DirectionRIGHT-HAND FIRST END
Style DesignatorANGLE
Connection TypeTHREADED INTERNAL PIPE FIRST END
MaterialSTEEL OVERALL
Connection StylePLAIN (PIPE) SECOND END
Connection StylePLAIN,OPTIONAL END(PIPE) FIRST END
Thread Series DesignatorNPT SECOND END
Thread DirectionRIGHT-HAND SECOND END
Thread Series DesignatorNPT FIRST END
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Features ProvidedBONNET PACKING
Flow Control DeviceDISK
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3455-00-505-023715429 INTERCHANGEABLE
Cutter,milling,end
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
6650-00-525-3446128425-1 INTERCHANGEABLE
Lens,optical Instrument
Sypris Electronics, Llc
5315-01-484-949894191 INTERCHANGEABLE
Pin,straight,headed
Sps Technologies, Llc Dba PB Fasteners
Cross-Reference Index
Part NumberManufacturer
94-191 PRIMARY Johnson Controls Navy Systems, Llc (USA)
8639FH1-4 PRIMARY Johnson Controls Navy Systems, Llc (USA)
Related Parts
3455-00-505-0237INTERCHANGEABLE
CUTTER,MILLING,END
15429
6650-00-525-3446INTERCHANGEABLE
LENS,OPTICAL INSTRUMENT
128425-1
5315-01-484-9498INTERCHANGEABLE
PIN,STRAIGHT,HEADED
94191

Frequently Asked Questions

What is NSN 4820-00-428-2501?

NSN 4820-00-428-2501 is a Valve,angle, manufactured by Johnson Controls Navy Systems, Llc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-428-2501?

NSN 4820-00-428-2501 has 2 cross-referenced part numbers: 94-191 (Johnson Controls Navy Systems, Llc), 8639FH1-4 (Johnson Controls Navy Systems, Llc).

What NSN replaces 4820-00-428-2501?

There are 3 known substitutes for 4820-00-428-2501: 3455-00-505-0237, 6650-00-525-3446, 5315-01-484-9498. Verify interchangeability with system specifications before substitution.

What are the specifications of 94-191?

Key specifications for 94-191: Bonnet Attachment Method: THREADED; Bonnet Type: INSIDE SCREW; Valve Operation Method: MANUAL; Nominal Thread Size: 0.250 INCHES SECOND END IN. 17 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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