PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12524Seat,valve

Leroi International Inc Dba Compair Leroi · NSN 4820-01-045-7791 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-045-7791 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-045-7791. Primary manufacturer part number: 12524.
Features
  • Seat,valve — FSC 4820
  • Seat Angle in Deg: 15.000 NOMINAL
  • Thread Series Designator: UNS SINGLE THREADED PORTION
  • Style Designator: PLAIN THREADED
  • Material: STEEL OVERALL
  • Body Inside Diameter: 0.281 INCHES MINIMUM AND 0.283 INCHES MAXIMUM IN
  • Thread Quantity Per Inch: 24 SINGLE THREADED PORTION
  • Seating Surface Shape: ANGULAR
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 4820-01-045-7791, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Leroi International Inc Dba Compair Leroi. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 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
NSN4820-01-045-7791
Primary Part Number12524
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeroi International Inc Dba Compair Leroi
StatusACTIVE
Seat Angle in Deg15.000 NOMINAL
Thread Series DesignatorUNS SINGLE THREADED PORTION
Style DesignatorPLAIN THREADED
MaterialSTEEL OVERALL
Body Inside Diameter0.281 INCHES MINIMUM AND 0.283 INCHES MAXIMUM IN
Thread Quantity Per Inch24 SINGLE THREADED PORTION
Seating Surface ShapeANGULAR
Nominal Thread Size1.125 INCHES SINGLE THREADED PORTION IN
Thread Class3A SINGLE THREADED PORTION A
Thread Length0.179 INCHES NOMINAL SINGLE THREADED PORTION IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-003-928050141S INTERCHANGEABLE
Seal,plain Encased
Federal-Mogul Corp Government Sales Dept
5950-00-255-350412524 INTERCHANGEABLE
Transformer,pulse
Freed Transformer Co
4310-00-431-16481F4516 INTERCHANGEABLE
Retainer
Caterpillar Inc Div Caterpillar Defense
5330-00-588-026812-524 INTERCHANGEABLE
Gasket
Vacco Industries
5950-00-716-744612524 INTERCHANGEABLE
Reactor
Robert M. Hadley Company, Inc.
5970-01-215-69791252400 INTERCHANGEABLE
Insulator,spacer
Phoenix Products Llc Dba Phoenix Lighting Products Llc
5305-01-273-498212524 INTERCHANGEABLE
Screw,cap,socket Head
Sps Technologies, Llc Dba PB Fasteners
2510-01-345-401812524 INTERCHANGEABLE
Frame Section,structural,vehicul
DP Manufacturing Inc.
4510-01-470-412112524 INTERCHANGEABLE
Closet Bolt Package
Thetford Corp
4820-01-498-6316 INTERCHANGEABLE
Valve,ball
Cross-Reference Index
Part NumberManufacturer
12524 Compair Kellogg Div of Robertshaw Controls Co (USA)
12524 PRIMARY Leroi International Inc Dba Compair Leroi (USA)
Related Parts
5330-00-003-9280INTERCHANGEABLE
SEAL,PLAIN ENCASED
50141S
5950-00-255-3504INTERCHANGEABLE
TRANSFORMER,PULSE
12524
4310-00-431-1648INTERCHANGEABLE
RETAINER
1F4516
5330-00-588-0268INTERCHANGEABLE
GASKET
12-524
5950-00-716-7446INTERCHANGEABLE
REACTOR
12524
5970-01-215-6979INTERCHANGEABLE
INSULATOR,SPACER
1252400
5305-01-273-4982INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
12524
2510-01-345-4018INTERCHANGEABLE
FRAME SECTION,STRUCTURAL,VEHICUL
12524
4510-01-470-4121INTERCHANGEABLE
CLOSET BOLT PACKAGE
12524
4820-01-498-6316INTERCHANGEABLE
VALVE,BALL
5340-01-628-6076INTERCHANGEABLE
LOCK,FLUSH
12524
1730-01-654-2940INTERCHANGEABLE
GROOVED PIN A00
12524

Frequently Asked Questions

What is NSN 4820-01-045-7791?

NSN 4820-01-045-7791 is a Seat,valve, manufactured by Leroi International Inc Dba Compair Leroi, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-045-7791?

NSN 4820-01-045-7791 has 2 cross-referenced part numbers: 12524 (Compair Kellogg Div of Robertshaw Controls Co), 12524 (Leroi International Inc Dba Compair Leroi).

What NSN replaces 4820-01-045-7791?

There are 12 known substitutes for 4820-01-045-7791: 5330-00-003-9280, 5950-00-255-3504, 4310-00-431-1648 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12524?

Key specifications for 12524: Seat Angle in Deg: 15.000 NOMINAL; Thread Series Designator: UNS SINGLE THREADED PORTION; Style Designator: PLAIN THREADED; Material: STEEL OVERALL. 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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