PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1446-2Seat,valve

Lawler Manufacturing Company, Inc. · NSN 4820-01-465-5683 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-465-5683 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-465-5683. Primary manufacturer part number: 1446-2.
Features
  • Seat,valve — FSC 4820
  • Body Inside Diameter: 2.500 INCHES NOMINAL IN
  • Seating Surface Shape: FLAT
  • Material: COPPER ALLOY SEAT
  • Style Designator: THREADED FLANGED
  • Flange Seat to Disk End Height: 0.750 INCHES NOMINAL IN
  • Under Flange Height: 0.187 INCHES NOMINAL IN
  • Flange Diameter: 2.781 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Seat construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-465-5683, 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 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-465-5683
Primary Part Number1446-2
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLawler Manufacturing Company, Inc.
StatusACTIVE
Body Inside Diameter2.500 INCHES NOMINAL IN
Seating Surface ShapeFLAT
MaterialCOPPER ALLOY SEAT
Style DesignatorTHREADED FLANGED
Flange Seat to Disk End Height0.750 INCHES NOMINAL IN
Under Flange Height0.187 INCHES NOMINAL IN
Flange Diameter2.781 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
6220-00-562-1957L14462000 INTERCHANGEABLE
Light,dome
Luminator Holding L.p Dba Luminator Technology Group
6685-01-338-49071327D INTERCHANGEABLE
Tester,pressure Gage
High Vacuum Equipment Corp
6760-01-376-3870 INTERCHANGEABLE
Lens,camera,general Photographic
4820-01-465-55193698 INTERCHANGEABLE
Stem,fluid Valve
Lawler Manufacturing Company, Inc.
4820-01-465-55341446-1 INTERCHANGEABLE
Seat,valve
Lawler Manufacturing Company, Inc.
4820-01-465-5542S2 1-2-50T90-15FT INTERCHANGEABLE
Valve,regulating,fluid Pressure
Lawler Manufacturing Company, Inc.
4820-01-465-56391321 INTERCHANGEABLE
Disk,valve
Lawler Manufacturing Company, Inc.
6515-01-580-1645188291100001 INTERCHANGEABLE
Tourniquet,pneumatic
Owens & Minor Distribution Inc
5985-01-668-23631446-2 INTERCHANGEABLE
Dummy Load,electrical
Spectrum Control Inc Div Weinschel
Cross-Reference Index
Part NumberManufacturer
1446-2 PRIMARY Lawler Manufacturing Company, Inc. (USA)
1327-D Lawler Manufacturing Company, Inc. (USA)
Related Parts
6220-00-562-1957INTERCHANGEABLE
LIGHT,DOME
L14462000
6685-01-338-4907INTERCHANGEABLE
TESTER,PRESSURE GAGE
1327D
6760-01-376-3870INTERCHANGEABLE
LENS,CAMERA,GENERAL PHOTOGRAPHIC
4820-01-465-5519INTERCHANGEABLE
STEM,FLUID VALVE
3698
4820-01-465-5534INTERCHANGEABLE
SEAT,VALVE
1446-1
4820-01-465-5542INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
S2 1-2-50T90-15FT
4820-01-465-5639INTERCHANGEABLE
DISK,VALVE
1321
6515-01-580-1645INTERCHANGEABLE
TOURNIQUET,PNEUMATIC
188291100001
5985-01-668-2363INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
1446-2

Frequently Asked Questions

What is NSN 4820-01-465-5683?

NSN 4820-01-465-5683 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 4820-01-465-5683?

NSN 4820-01-465-5683 has 2 cross-referenced part numbers: 1446-2 (Lawler Manufacturing Company, Inc.), 1327-D (Lawler Manufacturing Company, Inc.).

What NSN replaces 4820-01-465-5683?

There are 9 known substitutes for 4820-01-465-5683: 6220-00-562-1957, 6685-01-338-4907, 6760-01-376-3870 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1446-2?

Key specifications for 1446-2: Body Inside Diameter: 2.500 INCHES NOMINAL IN; Special Features: NHA VALVE; Seating Surface Shape: FLAT; Material: COPPER ALLOY SEAT. 9 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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