PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N09448Seat,valve

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-00-217-2771 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-217-2771 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-217-2771. Primary manufacturer part number: N09448.
Features
  • Seat,valve — FSC 4820
  • Flange Diameter: 3.188 INCHES NOMINAL IN
  • Material: STEEL CORROSION RESISTING OVERALL
  • Body Inside Diameter: 2.249 INCHES MINIMUM AND 2.255 INCHES MAXIMUM IN
  • Seating Surface Shape: ANGULAR
  • Seat Angle in Deg: 45.000 NOMINAL
  • Under Flange Height: 0.562 INCHES NOMINAL IN
  • Thread Length: 0.562 INCHES NOMINAL SINGLE THREADED PORTION IN
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 4820-00-217-2771, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-217-2771
Primary Part NumberN09448
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Flange Diameter3.188 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING OVERALL
Body Inside Diameter2.249 INCHES MINIMUM AND 2.255 INCHES MAXIMUM IN
Seating Surface ShapeANGULAR
Seat Angle in Deg45.000 NOMINAL
Under Flange Height0.562 INCHES NOMINAL IN
Thread Length0.562 INCHES NOMINAL SINGLE THREADED PORTION IN
Style DesignatorTHREADED FLANGED
Flange Seat to Disk End Height0.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5998-00-535-613809448 INTERCHANGEABLE
Circuit Card Assembly
L3harris Mas Inc Div L3harris Mas Inc.
5945-00-624-26889448 INTERCHANGEABLE
Relay,electromagnetic
Leach International Corp Div Leach International Corporation
4730-00-908-6292 INTERCHANGEABLE
Clamp,hose
7045-01-196-097676204026 INTERCHANGEABLE
Disk Cartridge,magnetic
Control Data Systems Inc Contracts Dept
2920-01-231-41339448 INTERCHANGEABLE
Lead Set,ignition,engine
Standard Motor Products
6530-01-485-87379448 INTERCHANGEABLE
Drape,neurological
Cardinal Health 200, Llc
5998-01-486-7452 INTERCHANGEABLE
Circuit Card Assembly
3120-01-624-07869448 INTERCHANGEABLE
Bearing Assembly,stern Tube
Teledyne Flir Unmanned Ground Systems, Inc
Cross-Reference Index
Part NumberManufacturer
N09448 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
4824-3203027REVAPC20 Naval Ship Systems Command (USA)
8759NREVAPC20 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
9448 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
N08760NSH1REVAPC9448 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
09448 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
571-4500-1444719SHIREVAPC9448 Naval Ship Systems Command (USA)
Related Parts
5998-00-535-6138INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
09448
5945-00-624-2688INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
9448
4730-00-908-6292INTERCHANGEABLE
CLAMP,HOSE
7045-01-196-0976INTERCHANGEABLE
DISK CARTRIDGE,MAGNETIC
76204026
2920-01-231-4133INTERCHANGEABLE
LEAD SET,IGNITION,ENGINE
9448
6530-01-485-8737INTERCHANGEABLE
DRAPE,NEUROLOGICAL
9448
5998-01-486-7452INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
3120-01-624-0786INTERCHANGEABLE
BEARING ASSEMBLY,STERN TUBE
9448

Frequently Asked Questions

What is NSN 4820-00-217-2771?

NSN 4820-00-217-2771 is a Seat,valve, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-217-2771?

NSN 4820-00-217-2771 has 7 cross-referenced part numbers: N09448 (Leslie Controls, Inc. Dba Leslie Controls Inc), 4824-3203027REVAPC20 (Naval Ship Systems Command), 8759NREVAPC20 (Leslie Controls, Inc. Dba Leslie Controls Inc), 9448 (Leslie Controls, Inc. Dba Leslie Controls Inc), N08760NSH1REVAPC9448 (Leslie Controls, Inc. Dba Leslie Controls Inc) and 2 more.

What NSN replaces 4820-00-217-2771?

There are 8 known substitutes for 4820-00-217-2771: 5998-00-535-6138, 5945-00-624-2688, 4730-00-908-6292 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of N09448?

Key specifications for N09448: Flange Diameter: 3.188 INCHES NOMINAL IN; Material: STEEL CORROSION RESISTING OVERALL; Body Inside Diameter: 2.249 INCHES MINIMUM AND 2.255 INCHES MAXIMUM IN; Seating Surface Shape: ANGULAR. 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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