PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NB31223079Diaphragm,valve,flat

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-122-3513 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-122-3513 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-122-3513. Primary manufacturer part number: NB31223079.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Material Thickness: 0.125 INCHES NOMINAL IN
  • Outside Diameter: 6.000 INCHES NOMINAL IN
  • Center Hole Diameter: 0.438 INCHES NOMINAL IN
  • Hole Diameter: 0.344 INCHES NOMINAL IN
  • Style Designator: FLAT
  • Bolt Circle Diameter: 5.375 INCHES NOMINAL IN
  • Bolt Hole Quantity: 8
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Synthetic construction
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-122-3513, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 1 manufacturer, 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
NSN4820-01-122-3513
Primary Part NumberNB31223079
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Material Thickness0.125 INCHES NOMINAL IN
Outside Diameter6.000 INCHES NOMINAL IN
Center Hole Diameter0.438 INCHES NOMINAL IN
Hole Diameter0.344 INCHES NOMINAL IN
Style DesignatorFLAT
Bolt Circle Diameter5.375 INCHES NOMINAL IN
Bolt Hole Quantity8
MaterialRUBBER SYNTHETIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5306-00-050-1924AGM951924 INTERCHANGEABLE
Bolt,machine
Ace G & M of Texas Inc. Dba Ace G & M of Texas
3020-00-076-438912230 INTERCHANGEABLE
Gear Assembly
Elbitamerica, Inc.
5133-00-189-9275 INTERCHANGEABLE
Drill,twist
5120-00-278-0352 INTERCHANGEABLE
Pliers,slip Joint
3040-00-335-933312230 INTERCHANGEABLE
Lever,remote Control
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5330-00-376-827412230 INTERCHANGEABLE
Packing
Dover Corp Groen Div
3419-00-449-473912230 INTERCHANGEABLE
Cutter,wheel
Curtis-Toledo, Inc.
5999-00-491-9170 INTERCHANGEABLE
Shielding Gasket,electronic
5340-00-808-6699 INTERCHANGEABLE
Handle,bow
3610-00-813-7219 INTERCHANGEABLE
Roller,ink Ductor
Cross-Reference Index
Part NumberManufacturer
12230-79 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
312230-79 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
N31223079 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
N-668 IT 7 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
12230 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
NB31223079 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
5306-00-050-1924INTERCHANGEABLE
BOLT,MACHINE
AGM951924
3020-00-076-4389INTERCHANGEABLE
GEAR ASSEMBLY
12230
5133-00-189-9275INTERCHANGEABLE
DRILL,TWIST
5120-00-278-0352INTERCHANGEABLE
PLIERS,SLIP JOINT
3040-00-335-9333INTERCHANGEABLE
LEVER,REMOTE CONTROL
12230
5330-00-376-8274INTERCHANGEABLE
PACKING
12230
3419-00-449-4739INTERCHANGEABLE
CUTTER,WHEEL
12230
5999-00-491-9170INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
5340-00-808-6699INTERCHANGEABLE
HANDLE,BOW
3610-00-813-7219INTERCHANGEABLE
ROLLER,INK DUCTOR
6250-00-849-9224INTERCHANGEABLE
LAMPHOLDER
12-230
6150-01-148-2738INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
17500

Frequently Asked Questions

What is NSN 4820-01-122-3513?

NSN 4820-01-122-3513 is a Diaphragm,valve,flat, 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 4820-01-122-3513?

NSN 4820-01-122-3513 has 6 cross-referenced part numbers: 12230-79 (Leslie Controls, Inc. Dba Leslie Controls Inc), 312230-79 (Leslie Controls, Inc. Dba Leslie Controls Inc), N31223079 (Leslie Controls, Inc. Dba Leslie Controls Inc), N-668 IT 7 (Leslie Controls, Inc. Dba Leslie Controls Inc), 12230 (Leslie Controls, Inc. Dba Leslie Controls Inc) and 1 more.

What NSN replaces 4820-01-122-3513?

There are 12 known substitutes for 4820-01-122-3513: 5306-00-050-1924, 3020-00-076-4389, 5133-00-189-9275 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NB31223079?

Key specifications for NB31223079: Material Thickness: 0.125 INCHES NOMINAL IN; Outside Diameter: 6.000 INCHES NOMINAL IN; Center Hole Diameter: 0.438 INCHES NOMINAL IN; Hole Diameter: 0.344 INCHES NOMINAL IN. 8 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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