PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

563 1 INCHCock,plug

The Walworth Company · NSN 4820-00-494-4103 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-494-4103 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-494-4103. Primary manufacturer part number: 563 1 INCH.
Features
  • Cock,plug — FSC 4820
  • Nominal Thread Size: 1.000 INCHES ALL ENDS1.000 INCHES ALL ENDS IN
  • Flow Style: THREE-WAY THREE PORT 90 DEGREE PLUG TURNTHREE-WAY THREE PORT 90 DEGREE PLUG TURN
  • Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDSPLAIN, OPTIONAL END (PIPE) ALL ENDS
  • Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE
  • Thread Direction: RIGHT-HAND ALL ENDSRIGHT-HAND ALL ENDS
  • Thread Series Designator: NPT ALL ENDS
  • Valve Operation Method: MANUALMANUAL
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Cock,plug, cataloged under National Stock Number 4820-00-494-4103, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is The Walworth Company. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 6 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
NSN4820-00-494-4103
Primary Part Number563 1 INCH
Item NameCock,plug
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerThe Walworth Company
StatusCANCELLED
Nominal Thread Size1.000 INCHES ALL ENDS1.000 INCHES ALL ENDS IN
Flow StyleTHREE-WAY THREE PORT 90 DEGREE PLUG TURNTHREE-WAY THREE PORT 90 DEGREE PLUG TURN
Connection StylePLAIN, OPTIONAL END (PIPE) ALL ENDSPLAIN, OPTIONAL END (PIPE) ALL ENDS
Media for Which DesignedWATER-OIL-GAS SINGLE RESPONSE
Thread DirectionRIGHT-HAND ALL ENDSRIGHT-HAND ALL ENDS
Thread Series DesignatorNPT ALL ENDS
Valve Operation MethodMANUALMANUAL
Connection TypeTHREADED INTERNAL PIPE ALL ENDSTHREADED INTERNAL PIPE ALL ENDS
MaterialCOPPER ALLOY OVERALL
Features ProvidedNONADJUSTABLE ROTATIONNONADJUSTABLE ROTATION
Operating Pressure125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-155-6198 INTERCHANGEABLE
Bearing,ball,annular
3110-00-156-542805095AB INTERCHANGEABLE
Bearing,ball,annular
Cnh Industrial America Llc Dba Cnh America
6685-00-229-73507605 INTERCHANGEABLE
Gage,compound Pressure-Vacuum,di
Hydraulic Technology, Inc
5930-00-315-83687605 INTERCHANGEABLE
Cover,electrical Switch
Te Connectivity Corporation
4730-00-391-85577605 INTERCHANGEABLE
Plug,spring
Machine Shop Inc the
5935-00-813-4851391RED INTERCHANGEABLE
Jack,tip
Birnbach Co Inc
3040-01-139-9884 INTERCHANGEABLE
Pawl
5998-01-153-1179 INTERCHANGEABLE
Circuit Card Assembly
4320-01-305-87317605 INTERCHANGEABLE
Bellows,turbine Pump
Coffin Turbo Pump Inc
6515-01-327-06857605 INTERCHANGEABLE
Surgical Pack,disposable
Devon Industries Inc
Cross-Reference Index
Part NumberManufacturer
563 1 INCH PRIMARY The Walworth Company (USA)
563 The Walworth Company (USA)
01278 Uniflite Inc (USA)
13216E6865 Cecom Lr Center (USA)
9711 1 INCH PRIMARY Mc Donald a Y Mfg Co (USA)
7605 Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
268 1 INCH PRIMARY Crane Co Div Valve Div (USA)
9711-1IN Mc Donald a Y Mfg Co (USA)
7605 1 INCH PRIMARY Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
Related Parts
3110-00-155-6198INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-156-5428INTERCHANGEABLE
BEARING,BALL,ANNULAR
05095AB
6685-00-229-7350INTERCHANGEABLE
GAGE,COMPOUND PRESSURE-VACUUM,DI
7605
5930-00-315-8368INTERCHANGEABLE
COVER,ELECTRICAL SWITCH
7605
4730-00-391-8557INTERCHANGEABLE
PLUG,SPRING
7605
5935-00-813-4851INTERCHANGEABLE
JACK,TIP
391RED
3040-01-139-9884INTERCHANGEABLE
PAWL
5998-01-153-1179INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
4320-01-305-8731INTERCHANGEABLE
BELLOWS,TURBINE PUMP
7605
6515-01-327-0685INTERCHANGEABLE
SURGICAL PACK,DISPOSABLE
7605
7240-01-367-7372INTERCHANGEABLE
FUNNEL
7605
5962-01-395-9763INTERCHANGEABLE
MICROCIRCUIT,DIGITAL

Frequently Asked Questions

What is NSN 4820-00-494-4103?

NSN 4820-00-494-4103 is a Cock,plug, manufactured by The Walworth Company, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-494-4103?

NSN 4820-00-494-4103 has 9 cross-referenced part numbers: 563 1 INCH (The Walworth Company), 563 (The Walworth Company), 01278 (Uniflite Inc), 13216E6865 (Cecom Lr Center), 9711 1 INCH (Mc Donald a Y Mfg Co) and 4 more.

What NSN replaces 4820-00-494-4103?

There are 12 known substitutes for 4820-00-494-4103: 3110-00-155-6198, 3110-00-156-5428, 6685-00-229-7350 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 563 1 INCH?

Key specifications for 563 1 INCH: Nominal Thread Size: 1.000 INCHES ALL ENDS1.000 INCHES ALL ENDS IN; Flow Style: THREE-WAY THREE PORT 90 DEGREE PLUG TURNTHREE-WAY THREE PORT 90 DEGREE PLUG TURN; Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDSPLAIN, OPTIONAL END (PIPE) ALL ENDS; Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-494-4103 still in active supply?

NSN 4820-00-494-4103 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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