PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

P80433-1Seat,valve

Lexair Inc · NSN 4820-00-713-2879 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-713-2879 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-713-2879. Primary manufacturer part number: P80433-1.
Features
  • Seat,valve — FSC 4820
  • Thread Class: 2A SINGLE THREADED PORTION A
  • Style Designator: PLAIN THREADED
  • Thread Length: 0.562 INCHES NOMINAL SINGLE THREADED PORTION IN
  • Seating Surface Shape: FLAT
  • Body Inside Diameter: 0.625 INCHES NOMINAL IN
  • Nominal Thread Size: 1.375 INCHES SINGLE THREADED PORTION IN
  • Thread Quantity Per Inch: 16 SINGLE THREADED PORTION
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-713-2879, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Lexair Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-713-2879
Primary Part NumberP80433-1
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLexair Inc
StatusACTIVE
Thread Class2A SINGLE THREADED PORTION A
Style DesignatorPLAIN THREADED
Thread Length0.562 INCHES NOMINAL SINGLE THREADED PORTION IN
Seating Surface ShapeFLAT
Body Inside Diameter0.625 INCHES NOMINAL IN
Nominal Thread Size1.375 INCHES SINGLE THREADED PORTION IN
Thread Quantity Per Inch16 SINGLE THREADED PORTION
Thread Series DesignatorUN SINGLE THREADED PORTION
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6760-00-303-9713 INTERCHANGEABLE
Holder,filter
2925-00-814-0429FHE231A INTERCHANGEABLE
Igniter,spark,gas Turbine Engine
Champion Aerospace Llc
5998-01-129-41920307-0223 INTERCHANGEABLE
Circuit Card Assembly
Rogerson Kratos
5935-01-175-83181-583718-1 INTERCHANGEABLE
Connector Body,receptacle,electr
Te Connectivity Corporation
8145-01-229-250015644 INTERCHANGEABLE
Shipping and Storage Container,e
Naval Inventory Control Point
7490-01-509-132215644 INTERCHANGEABLE
Shredding Machine,paper
Hsm of America Llc
Cross-Reference Index
Part NumberManufacturer
P80433-1 PRIMARY Lexair Inc (USA)
156/44 Wellman Group (GBR)
156 ITEM 44 Wellman Group (GBR)
X5008/12/156/44 Wellman Group (GBR)
X5008/12/156 ITEM 44 Wellman Group (GBR)
Related Parts
6760-00-303-9713INTERCHANGEABLE
HOLDER,FILTER
2925-00-814-0429INTERCHANGEABLE
IGNITER,SPARK,GAS TURBINE ENGINE
FHE231A
5998-01-129-4192INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
0307-0223
5935-01-175-8318INTERCHANGEABLE
CONNECTOR BODY,RECEPTACLE,ELECTR
1-583718-1
8145-01-229-2500INTERCHANGEABLE
SHIPPING AND STORAGE CONTAINER,E
15644
7490-01-509-1322INTERCHANGEABLE
SHREDDING MACHINE,PAPER
15644

Frequently Asked Questions

What is NSN 4820-00-713-2879?

NSN 4820-00-713-2879 is a Seat,valve, manufactured by Lexair Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-713-2879?

NSN 4820-00-713-2879 has 5 cross-referenced part numbers: P80433-1 (Lexair Inc), 156/44 (Wellman Group), 156 ITEM 44 (Wellman Group), X5008/12/156/44 (Wellman Group), X5008/12/156 ITEM 44 (Wellman Group).

What NSN replaces 4820-00-713-2879?

There are 6 known substitutes for 4820-00-713-2879: 6760-00-303-9713, 2925-00-814-0429, 5998-01-129-4192 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of P80433-1?

Key specifications for P80433-1: Thread Class: 2A SINGLE THREADED PORTION A; Special Features: W/FOUR 0.375 IN. DIA HOLES ON OUTER PERIPHERY AND 0.750 IN. FROM UNTHD END TO HOLE CENTER SPACED 90 DEG APART IN; Style Designator: PLAIN THREADED; Thread Length: 0.562 INCHES NOMINAL SINGLE THREADED PORTION IN. 11 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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