PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21810Ball,bearing

Mason Electric Co. Dba Mason Controls · NSN 3110-01-007-7626 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-01-007-7626 — this item is cataloged by the U.S. Government under National Stock Number 3110-01-007-7626. Primary manufacturer part number: 21810.
Features
  • Ball,bearing — FSC 3110
  • Rolling Element Diameter: 0.2500 INCHES NOMINAL IN
  • Style Designator: BALL
  • Material: STEEL COMP 5140 OVERALL
  • 6 verified cross-references
  • Primary manufacturer: Mason Electric Co. Dba Mason Controls
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp 5140 Overall construction
General Description

The Ball,bearing, cataloged under National Stock Number 3110-01-007-7626, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Mason Electric Co. Dba Mason Controls. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-01-007-7626
Primary Part Number21810
Item NameBall,bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerMason Electric Co. Dba Mason Controls
StatusCANCELLED
Rolling Element Diameter0.2500 INCHES NOMINAL IN
Style DesignatorBALL
MaterialSTEEL COMP 5140 OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
6685-00-143-4746PT109 INTERCHANGEABLE
Thermometer,self-Indicating
Sigma Products & Mfg
5325-00-818-252721810 INTERCHANGEABLE
Ring,retaining
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
5985-01-036-6214218-10 INTERCHANGEABLE
Attenuator,fixed
Cinch Connectivity Solutions Inc
5310-01-049-0471NW21810 INTERCHANGEABLE
Nut,plain,wing
Tld Wollard Llc
5961-01-169-6507 INTERCHANGEABLE
Transistor
5950-01-210-106921810 INTERCHANGEABLE
Reactor
Westerbeke Corporation
4720-01-374-413621810 INTERCHANGEABLE
Hose,preformed
Gates Corporation
5945-01-499-851621-810 INTERCHANGEABLE
Relay,hybrid
Te Connectivity Corporation
Cross-Reference Index
Part NumberManufacturer
PM21810 Amphenol Corp Div Amphenol Aerospace Operations (USA)
21810 Amphenol Corp Div Amphenol Aerospace Operations (USA)
PM21810 Unison Industries Llc (USA)
21810 PRIMARY Mason Electric Co. Dba Mason Controls (USA)
PM21810 Mason Electric Co. Dba Mason Controls (USA)
21810 Unison Industries Llc (USA)
Related Parts
6685-00-143-4746INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
PT109
5325-00-818-2527INTERCHANGEABLE
RING,RETAINING
21810
5985-01-036-6214INTERCHANGEABLE
ATTENUATOR,FIXED
218-10
5310-01-049-0471INTERCHANGEABLE
NUT,PLAIN,WING
NW21810
5961-01-169-6507INTERCHANGEABLE
TRANSISTOR
5950-01-210-1069INTERCHANGEABLE
REACTOR
21810
4720-01-374-4136INTERCHANGEABLE
HOSE,PREFORMED
21810
5945-01-499-8516INTERCHANGEABLE
RELAY,HYBRID
21-810

Frequently Asked Questions

What is NSN 3110-01-007-7626?

NSN 3110-01-007-7626 is a Ball,bearing, manufactured by Mason Electric Co. Dba Mason Controls, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-01-007-7626?

NSN 3110-01-007-7626 has 6 cross-referenced part numbers: PM21810 (Amphenol Corp Div Amphenol Aerospace Operations), 21810 (Amphenol Corp Div Amphenol Aerospace Operations), PM21810 (Unison Industries Llc), 21810 (Mason Electric Co. Dba Mason Controls), PM21810 (Mason Electric Co. Dba Mason Controls) and 1 more.

What NSN replaces 3110-01-007-7626?

There are 8 known substitutes for 3110-01-007-7626: 6685-00-143-4746, 5325-00-818-2527, 5985-01-036-6214 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21810?

Key specifications for 21810: Rolling Element Diameter: 0.2500 INCHES NOMINAL IN; Style Designator: BALL; Material: STEEL COMP 5140 OVERALL. 3 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-01-007-7626 still in active supply?

NSN 3110-01-007-7626 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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