PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

863DPC35Disk,valve

Lawler Manufacturing Company, Inc. · NSN 4820-00-075-0434 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-075-0434 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-075-0434. Primary manufacturer part number: 863DPC35.
Features
  • Disk,valve — FSC 4820
  • Outside Diameter: 2.500 INCHES NOMINAL IN
  • Thread Series Designator: UNF
  • Seat Angle: 60.0 DEGREES NOMINAL
  • Style Designator: PLUG
  • Nominal Thread Size: 0.750 INCHES IN
  • Material: NICKEL ALLOY
  • Thread Class: 2B
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-00-075-0434, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Lawler Manufacturing Company, Inc.. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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
NSN4820-00-075-0434
Primary Part Number863DPC35
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLawler Manufacturing Company, Inc.
StatusACTIVE
Outside Diameter2.500 INCHES NOMINAL IN
Thread Series DesignatorUNF
Seat Angle60.0 DEGREES NOMINAL
Style DesignatorPLUG
Nominal Thread Size0.750 INCHES IN
MaterialNICKEL ALLOY
Thread Class2B
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5360-00-312-5342 INTERCHANGEABLE
Spring,helical,extension
6210-00-336-5867SYMBOL 2815.1 INTERCHANGEABLE
Light,indicator
Brantner and Associates, Inc.
9905-00-367-36342815 INTERCHANGEABLE
Plate,instruction
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
1650-00-397-5488 INTERCHANGEABLE
End Cap
5935-00-515-69642815 INTERCHANGEABLE
Connector,receptacle,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
4730-00-686-1436 INTERCHANGEABLE
Coupling Half,quick Disconnect
6515-01-125-322800-2815-000-00 INTERCHANGEABLE
Spreader,bone,pediatric
Zimmer, Inc. Dba Z Hotel
2030-01-176-77502815 INTERCHANGEABLE
Plate,transm
Datamarine Intl Inc
5935-01-186-3796 INTERCHANGEABLE
Connector,receptacle,electrical
5342-01-304-5386281-5 INTERCHANGEABLE
Clip,securing,bolt
V I J Corp Div National Utilities Company
Cross-Reference Index
Part NumberManufacturer
863DPC35 Lawler Manufacturing Company, Inc. (USA)
864DPC35 Lawler Manufacturing Company, Inc. (USA)
310 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
2815 Lawler Manufacturing Company, Inc. (USA)
Related Parts
5360-00-312-5342INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
6210-00-336-5867INTERCHANGEABLE
LIGHT,INDICATOR
SYMBOL 2815.1
9905-00-367-3634INTERCHANGEABLE
PLATE,INSTRUCTION
2815
1650-00-397-5488INTERCHANGEABLE
END CAP
5935-00-515-6964INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
2815
4730-00-686-1436INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
6515-01-125-3228INTERCHANGEABLE
SPREADER,BONE,PEDIATRIC
00-2815-000-00
2030-01-176-7750INTERCHANGEABLE
PLATE,TRANSM
2815
5935-01-186-3796INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5342-01-304-5386INTERCHANGEABLE
CLIP,SECURING,BOLT
281-5
4320-01-358-8563INTERCHANGEABLE
PUMP,CENTRIFUGAL
2815
4320-01-358-9585INTERCHANGEABLE
SEAL ASSEMBLY,SHAFT,SPRING LOADE
A-2155

Frequently Asked Questions

What is NSN 4820-00-075-0434?

NSN 4820-00-075-0434 is a Disk,valve, manufactured by Lawler Manufacturing Company, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-075-0434?

NSN 4820-00-075-0434 has 4 cross-referenced part numbers: 863DPC35 (Lawler Manufacturing Company, Inc.), 864DPC35 (Lawler Manufacturing Company, Inc.), 310 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 2815 (Lawler Manufacturing Company, Inc.).

What NSN replaces 4820-00-075-0434?

There are 12 known substitutes for 4820-00-075-0434: 5360-00-312-5342, 6210-00-336-5867, 9905-00-367-3634 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 863DPC35?

Key specifications for 863DPC35: Outside Diameter: 2.500 INCHES NOMINAL IN; Overall Height: 2.312 INCHES NOMINAL IN; Thread Series Designator: UNF; Seat Angle: 60.0 DEGREES NOMINAL. 8 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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