PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

243618PC21Bearing Unit,ball

Insinger Machine Co · NSN 3130-00-108-0579 · FSC 3130 · No Item Name Available
Verified by PartsTable
NSN 3130-00-108-0579 — this item is cataloged by the U.S. Government under National Stock Number 3130-00-108-0579. Primary manufacturer part number: 243618PC21.
Features
  • Bearing Unit,ball — FSC 3130
  • Load Capability Type: RADIAL
  • Assembly Overall Length: 1.7500 INCHES NOMINAL IN
  • Lubrication Fitting Type: HYDRAULIC
  • Lubrication Material: GREASE
  • Material: IRON CAST HOUSING
  • Style Designator: FLANGE BLOCK
  • Bore Diameter: 1.4375 INCHES NOMINAL IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Iron Cast Housing construction
General Description

The Bearing Unit,ball, cataloged under National Stock Number 3130-00-108-0579, is classified within Federal Supply Class 3130 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Insinger Machine Co. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3130-00-108-0579
Primary Part Number243618PC21
Item NameBearing Unit,ball
FSC / FSG3130 / 31 — No Item Name Available
ManufacturerInsinger Machine Co
StatusCANCELLED
Load Capability TypeRADIAL
Assembly Overall Length1.7500 INCHES NOMINAL IN
Lubrication Fitting TypeHYDRAULIC
Lubrication MaterialGREASE
MaterialIRON CAST HOUSING
Style DesignatorFLANGE BLOCK
Bore Diameter1.4375 INCHES NOMINAL IN
Rolling Element Groove Quantity1
MaterialSTEEL AND WOOL SEAL
Internal Fit-Up DesignationSTANDARD
Alignment TypeSELF-ALIGNING
Housing Width4.6250 INCHES NOMINAL IN
Features ProvidedGROUND ROLLING ELEMENT GROOVE
Rotating Element Locking MethodDIRECT
Seal LocationBOTH ENDS
Seal TypeLABYRINTH
Mounting Hole Diameter0.5156 INCHES NOMINAL IN
Bolt Circle Diameter3.6250 INCHES NOMINAL IN
Lubrication Fitting Angle From Horizontal Centerline90.0 DEGREES NOMINAL
Flange Thickness0.5625 INCHES NOMINAL IN
Housing Length1.3438 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
3110-00-155-8988 INTERCHANGEABLE
Bearing,ball,annular
5330-00-292-16104365282 INTERCHANGEABLE
Seal,plain Encased
Agco Corp Parts Opn
3130-00-585-1420RCJ1 7/16 INTERCHANGEABLE
Bearing Unit,ball
Timken Co Div the Timken Company
3120-00-916-3021L36 INTERCHANGEABLE
Bearing,sleeve
Circor Naval Solutions Llc Dba Warren Pumps
5340-01-081-6457L3-6 INTERCHANGEABLE
Clamp,synchro
Roller Bearing Co of America, Inc Div Pic Design
3020-01-375-7791 INTERCHANGEABLE
Gear,internal
6230-01-420-5474L36 INTERCHANGEABLE
Spotlight
Laser Products
5120-01-426-5782175-10 INTERCHANGEABLE
Hammer,hand
Vaughan & Bushnell Manufacturing Company
5340-01-447-3863 INTERCHANGEABLE
Handle,door
Cross-Reference Index
Part NumberManufacturer
SF23 Stephens-Adamson Inc a Sub of Allis-Chalmers Corp (USA)
243618PC21 PRIMARY Insinger Machine Co (USA)
L36 PRIMARY Insinger Machine Co (USA)
L24-40PC22 PRIMARY Insinger Machine Co (USA)
Related Parts
3110-00-155-8988INTERCHANGEABLE
BEARING,BALL,ANNULAR
5330-00-292-1610INTERCHANGEABLE
SEAL,PLAIN ENCASED
4365282
3130-00-585-1420INTERCHANGEABLE
BEARING UNIT,BALL
RCJ1 7/16
3120-00-916-3021INTERCHANGEABLE
BEARING,SLEEVE
L36
5340-01-081-6457INTERCHANGEABLE
CLAMP,SYNCHRO
L3-6
3020-01-375-7791INTERCHANGEABLE
GEAR,INTERNAL
6230-01-420-5474INTERCHANGEABLE
SPOTLIGHT
L36
5120-01-426-5782INTERCHANGEABLE
HAMMER,HAND
175-10
5340-01-447-3863INTERCHANGEABLE
HANDLE,DOOR

Frequently Asked Questions

What is NSN 3130-00-108-0579?

NSN 3130-00-108-0579 is a Bearing Unit,ball, manufactured by Insinger Machine Co, classified under FSC 3130 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3130-00-108-0579?

NSN 3130-00-108-0579 has 4 cross-referenced part numbers: SF23 (Stephens-Adamson Inc a Sub of Allis-Chalmers Corp), 243618PC21 (Insinger Machine Co), L36 (Insinger Machine Co), L24-40PC22 (Insinger Machine Co).

What NSN replaces 3130-00-108-0579?

There are 9 known substitutes for 3130-00-108-0579: 3110-00-155-8988, 5330-00-292-1610, 3130-00-585-1420 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 243618PC21?

Key specifications for 243618PC21: Load Capability Type: RADIAL; Assembly Overall Length: 1.7500 INCHES NOMINAL IN; Lubrication Fitting Type: HYDRAULIC; Lubrication Material: GREASE. 22 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3130-00-108-0579 still in active supply?

NSN 3130-00-108-0579 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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