PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

862DPC16Seat,valve

Lawler Manufacturing Company, Inc. · NSN 4820-00-075-0433 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-075-0433 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-075-0433. Primary manufacturer part number: 862DPC16.
Features
  • Seat,valve — FSC 4820
  • Thread Length: 0.500 INCHES NOMINAL SINGLE THREADED PORTION IN
  • Body Inside Diameter: 1.250 INCHES NOMINAL IN
  • Flange Diameter: 1.906 INCHES NOMINAL IN
  • Flange Seat to Disk End Height: 0.281 INCHES NOMINAL IN
  • Nominal Thread Size: 1.625 INCHES SINGLE THREADED PORTION IN
  • Seating Surface Shape: ANGULAR
  • Material: STEEL CORROSION RESISTING OVERALL
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-075-0433, 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 12 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
NSN4820-00-075-0433
Primary Part Number862DPC16
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLawler Manufacturing Company, Inc.
StatusACTIVE
Thread Length0.500 INCHES NOMINAL SINGLE THREADED PORTION IN
Body Inside Diameter1.250 INCHES NOMINAL IN
Flange Diameter1.906 INCHES NOMINAL IN
Flange Seat to Disk End Height0.281 INCHES NOMINAL IN
Nominal Thread Size1.625 INCHES SINGLE THREADED PORTION IN
Seating Surface ShapeANGULAR
MaterialSTEEL CORROSION RESISTING OVERALL
Thread Class2A SINGLE THREADED PORTION A
Under Flange Height0.625 INCHES NOMINAL IN
Seat Angle in Deg45.000 NOMINAL
Style DesignatorTHREADED FLANGED
Thread Series DesignatorUNEF SINGLE THREADED PORTION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5920-00-059-35252830 INTERCHANGEABLE
Fuseholder,block
Cooper Bussmann, Llc Dba Cooper Industries
5935-00-259-25827703729P11 INTERCHANGEABLE
Backshell,electrical Connector
Lockheed Martin Corporation Div Rms
2825-00-388-68202830 INTERCHANGEABLE
Seal Assembly,beari
Westinghouse Electric Corp
5950-00-647-5193774582 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5110-00-782-5712 INTERCHANGEABLE
Broach,jeweler's
4220-00-910-08514435-30 INTERCHANGEABLE
Snorkle,divers
Dacor Corp
5985-00-951-05332830 INTERCHANGEABLE
Antenna
Drs Signal Solutions, Inc.
6520-01-005-7556 INTERCHANGEABLE
Silver Alloy Pellet,dental
6625-01-031-5758 INTERCHANGEABLE
Indicator,digital Display
3655-01-074-19302830 INTERCHANGEABLE
Cell,sample
Panametrics Llc
Cross-Reference Index
Part NumberManufacturer
862DPC16 Lawler Manufacturing Company, Inc. (USA)
381 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
2830 Lawler Manufacturing Company, Inc. (USA)
861DPC16 Lawler Manufacturing Company, Inc. (USA)
Related Parts
5920-00-059-3525INTERCHANGEABLE
FUSEHOLDER,BLOCK
2830
5935-00-259-2582INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
7703729P11
2825-00-388-6820INTERCHANGEABLE
SEAL ASSEMBLY,BEARI
2830
5950-00-647-5193INTERCHANGEABLE
TRANSFORMER,POWER
774582
5110-00-782-5712INTERCHANGEABLE
BROACH,JEWELER'S
4220-00-910-0851INTERCHANGEABLE
SNORKLE,DIVERS
4435-30
5985-00-951-0533INTERCHANGEABLE
ANTENNA
2830
6520-01-005-7556INTERCHANGEABLE
SILVER ALLOY PELLET,DENTAL
6625-01-031-5758INTERCHANGEABLE
INDICATOR,DIGITAL DISPLAY
3655-01-074-1930INTERCHANGEABLE
CELL,SAMPLE
2830
4910-01-118-6175INTERCHANGEABLE
ADAPTER,CYLINDER COMPRESSION TES
M3540A
5342-01-138-4199INTERCHANGEABLE
LATCH
R35-1105-XC

Frequently Asked Questions

What is NSN 4820-00-075-0433?

NSN 4820-00-075-0433 is a Seat,valve, manufactured by Lawler Manufacturing Company, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-075-0433?

NSN 4820-00-075-0433 has 4 cross-referenced part numbers: 862DPC16 (Lawler Manufacturing Company, Inc.), 381 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 2830 (Lawler Manufacturing Company, Inc.), 861DPC16 (Lawler Manufacturing Company, Inc.).

What NSN replaces 4820-00-075-0433?

There are 12 known substitutes for 4820-00-075-0433: 5920-00-059-3525, 5935-00-259-2582, 2825-00-388-6820 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 862DPC16?

Key specifications for 862DPC16: Thread Length: 0.500 INCHES NOMINAL SINGLE THREADED PORTION IN; Body Inside Diameter: 1.250 INCHES NOMINAL IN; Flange Diameter: 1.906 INCHES NOMINAL IN; Flange Seat to Disk End Height: 0.281 INCHES NOMINAL IN. 12 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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