PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

525Bearing,ball,annular

Struthers Wells Corp · NSN 3110-00-112-5522 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-112-5522 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-112-5522. Primary manufacturer part number: 525.
Features
  • Bearing,ball,annular — FSC 3110
  • Bore Diameter: 1.0000 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN
  • Internal Fit-Up Designation: STANDARD
  • Internal Fit-Up Contact Angular Direction: PRIMARILY RADIAL
  • Material: STEEL OVERALL
  • Style Designator: DOUBLE ROW FOUR-PIECE OUTER RING WITH BAND, SOLID INNER RING, NON-SEPARABLE
  • Load Direction: RADIAL
  • Overall Outside Diameter: 2.0000 INCHES MINIMUM AND 2.0050 INCHES MAXIMUM IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-112-5522, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Struthers Wells Corp. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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: Active.

Technical Specifications
ParameterValue
NSN3110-00-112-5522
Primary Part Number525
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerStruthers Wells Corp
StatusACTIVE
Bore Diameter1.0000 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN
Internal Fit-Up DesignationSTANDARD
Internal Fit-Up Contact Angular DirectionPRIMARILY RADIAL
MaterialSTEEL OVERALL
Style DesignatorDOUBLE ROW FOUR-PIECE OUTER RING WITH BAND, SOLID INNER RING, NON-SEPARABLE
Load DirectionRADIAL
Overall Outside Diameter2.0000 INCHES MINIMUM AND 2.0050 INCHES MAXIMUM IN
Surface FinishUNGROUND
Bore ShapeSTRAIGHT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5310-00-012-1641121641 INTERCHANGEABLE
Washer,finishing
Us Army Aviation and Missile Command
5945-00-067-7917BR7X300D7-26 INTERCHANGEABLE
Relay,electromagnetic
Microsemi Corp.-Power Management Group
1680-00-853-798012164-1 INTERCHANGEABLE
Slip Ring,swivel Un
Breeze-Eastern Llc
1430-00-939-698710105878-23 INTERCHANGEABLE
R0t0r Assembly
Us Army Aviation and Missile Command
5930-01-062-250312-1641-00 INTERCHANGEABLE
Switch,sensitive
Scotsman Industries Inc Div Scotsman Ice Systems
5962-01-383-8303AM-1394 INTERCHANGEABLE
Microcircuit,linear
Adams-Russell Co Inc Anzac Div
9150-01-552-9282DELVAC MX 15W40 INTERCHANGEABLE
Lubricating Oil,engine
Exxon Mobil Corporation Dba Exxonmobil Fuels Marketing Company Div Exxonmobil Fuels Marketing Company
6515-01-606-2241P33-040-003 INTERCHANGEABLE
Hose Assembly,air Breathing
On Site Gas Systems Inc
Cross-Reference Index
Part NumberManufacturer
525 PRIMARY Struthers Wells Corp (USA)
102-244-5PC565 PRIMARY Struthers Wells Corp (USA)
1216-41 PRIMARY Struthers Wells Corp (USA)
1216-41 Skf Industries Inc Nice Bearing Products Div (USA)
1216-41 Skf Usa Inc. (USA)
Related Parts
5310-00-012-1641INTERCHANGEABLE
WASHER,FINISHING
121641
5945-00-067-7917INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
BR7X300D7-26
1680-00-853-7980INTERCHANGEABLE
SLIP RING,SWIVEL UN
12164-1
1430-00-939-6987INTERCHANGEABLE
R0T0R ASSEMBLY
10105878-23
5930-01-062-2503INTERCHANGEABLE
SWITCH,SENSITIVE
12-1641-00
5962-01-383-8303INTERCHANGEABLE
MICROCIRCUIT,LINEAR
AM-1394
9150-01-552-9282INTERCHANGEABLE
LUBRICATING OIL,ENGINE
DELVAC MX 15W40
6515-01-606-2241INTERCHANGEABLE
HOSE ASSEMBLY,AIR BREATHING
P33-040-003

Frequently Asked Questions

What is NSN 3110-00-112-5522?

NSN 3110-00-112-5522 is a Bearing,ball,annular, manufactured by Struthers Wells Corp, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-112-5522?

NSN 3110-00-112-5522 has 5 cross-referenced part numbers: 525 (Struthers Wells Corp), 102-244-5PC565 (Struthers Wells Corp), 1216-41 (Struthers Wells Corp), 1216-41 (Skf Industries Inc Nice Bearing Products Div), 1216-41 (Skf Usa Inc.).

What NSN replaces 3110-00-112-5522?

There are 8 known substitutes for 3110-00-112-5522: 5310-00-012-1641, 5945-00-067-7917, 1680-00-853-7980 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 525?

Key specifications for 525: Bore Diameter: 1.0000 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN; Internal Fit-Up Designation: STANDARD; Internal Fit-Up Contact Angular Direction: PRIMARILY RADIAL; Material: STEEL OVERALL. 10 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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