PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2620-931X2 ASSY B 1 1/2IN PC4Flange,pipe,blind

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4730-01-183-2345 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-183-2345 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-183-2345. Primary manufacturer part number: 2620-931X2 ASSY B 1 1/2IN PC4.
Features
  • Flange,pipe,blind — FSC 4730
  • Bolt Hole Quantity: 6
  • Style Designator: ROUND, ONE BOLT HOLE CIRCLE
  • Bolt Circle Diameter: 1.924 INCHES NOMINAL IN
  • Nominal Pipe Size for Which Designed: 1.500 INCHES IN
  • Face Seating Surface Condition: MACHINED
  • Recess Diameter: 1.924 INCHES NOMINAL IN
  • Thickness: 0.688 INCHES NOMINAL IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Comp 1020 construction
General Description

The Flange,pipe,blind, cataloged under National Stock Number 4730-01-183-2345, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-183-2345
Primary Part Number2620-931X2 ASSY B 1 1/2IN PC4
Item NameFlange,pipe,blind
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Bolt Hole Quantity6
Style DesignatorROUND, ONE BOLT HOLE CIRCLE
Bolt Circle Diameter1.924 INCHES NOMINAL IN
Nominal Pipe Size for Which Designed1.500 INCHES IN
Face Seating Surface ConditionMACHINED
Recess Diameter1.924 INCHES NOMINAL IN
Thickness0.688 INCHES NOMINAL IN
Bolt Hole Diameter0.563 INCHES NOMINAL IN
Raised Face Diameter3.087 INCHES NOMINAL IN
MaterialSTEEL COMP 1020
Raised Face Height0.340 INCHES NOMINAL IN
Flange Section StyleTONGUED FACE (BLIND)
Flange Diameter5.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4730-00-517-785314-02-1301 ITEM 17400 INTERCHANGEABLE
Strainer Element,sediment
Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
Part NumberManufacturer
2620-931X2 ASSY B 1 1/2IN PC 4 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
2620-931X2 ASSY B 1 1/2IN PC4 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
845-1889564 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
Related Parts
4730-00-517-7853INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
14-02-1301 ITEM 17400

Frequently Asked Questions

What is NSN 4730-01-183-2345?

NSN 4730-01-183-2345 is a Flange,pipe,blind, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-183-2345?

NSN 4730-01-183-2345 has 3 cross-referenced part numbers: 2620-931X2 ASSY B 1 1/2IN PC 4 (Electric Boat Corporation Div General Dynamics Electric Boat), 2620-931X2 ASSY B 1 1/2IN PC4 (Leslie Controls, Inc. Dba Leslie Controls Inc), 845-1889564 (Electric Boat Corporation Div General Dynamics Electric Boat).

What NSN replaces 4730-01-183-2345?

There is 1 known substitute for 4730-01-183-2345: 4730-00-517-7853. Verify interchangeability with system specifications before substitution.

What are the specifications of 2620-931X2 ASSY B 1 1/2IN PC4?

Key specifications for 2620-931X2 ASSY B 1 1/2IN PC4: Bolt Hole Quantity: 6; Style Designator: ROUND, ONE BOLT HOLE CIRCLE; Bolt Circle Diameter: 1.924 INCHES NOMINAL IN; Nominal Pipe Size for Which Designed: 1.500 INCHES IN. 13 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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