PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

990013-831Bearing,ball,annular

Watkins-Johnson Co · NSN 3110-00-001-8158 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-001-8158 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-001-8158. Primary manufacturer part number: 990013-831.
Features
  • Bearing,ball,annular — FSC 3110
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OUTER RING
  • Load Direction: RADIAL
  • Internal Fit-Up Designation: STANDARD
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE INNER RING
  • Material: STEEL COMP 440C BALL
  • Material: STEEL COMP 440C INNER RING
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE BALL
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp 440c Ball construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-001-8158, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Watkins-Johnson Co. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-001-8158
Primary Part Number990013-831
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerWatkins-Johnson Co
StatusCANCELLED
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OUTER RING
Load DirectionRADIAL
Internal Fit-Up DesignationSTANDARD
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE INNER RING
MaterialSTEEL COMP 440C BALL
MaterialSTEEL COMP 440C INNER RING
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE BALL
Surface FinishGROUND
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
MaterialSTEEL CORROSION RESISTING RETAINER
MaterialRUBBER SYNTHETIC SEAL
Bore ShapeSTRAIGHT
Bearing Seal TypeCONTACT
Lubrication Material Document and ClassificationMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
Seal Quantity2
Lubrication MaterialGREASE
MaterialSTEEL COMP 440C OUTER RING
Standard Tolerance DesignationABEC NO.5
Bore Diameter0.6250 INCHES NOMINAL IN
Overall Outside Diameter1.3750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
3110-00-242-4866125C3781-2 INTERCHANGEABLE
Bearing,ball,annular
Fag Bearings Corporation
3110-00-710-4936 INTERCHANGEABLE
Bearing,ball,annular
3110-01-406-1870SSRI-2258DDRA1P28LG68 INTERCHANGEABLE
Bearing,ball,annular
New Hampshire Ball Bearings Inc Div Hitech Division
7690-01-535-4919101-4080-1 INTERCHANGEABLE
Decal
Textron Aviation Inc
Cross-Reference Index
Part NumberManufacturer
990013-831 Watkins-Johnson Co (USA)
3110PL0961315 Jednolity Indeks Materialowy - Uniform Material Index (POL)
SSZ99R10 General Motors Corp Delco Moraine Ndh Div (USA)
125C3781 General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (USA)
101408-01 General Dynamics Land Systems Inc. Div Gdls Global Llc (USA)
M81793/03-NB1H2N1E1 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
101408-01 General Dynamics Land Systems Inc. (USA)
3153601-19 Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div (USA)
SSZ99R10XR5CJ General Motors Corp Delco Moraine Ndh Div (USA)
AS7PP Timken Co Div the Timken Company (USA)
R10ZZST Skf Usa Inc. (USA)
Related Parts
3110-00-242-4866INTERCHANGEABLE
BEARING,BALL,ANNULAR
125C3781-2
3110-00-710-4936INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-01-406-1870INTERCHANGEABLE
BEARING,BALL,ANNULAR
SSRI-2258DDRA1P28LG68
7690-01-535-4919INTERCHANGEABLE
DECAL
101-4080-1

Frequently Asked Questions

What is NSN 3110-00-001-8158?

NSN 3110-00-001-8158 is a Bearing,ball,annular, manufactured by Watkins-Johnson Co, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-001-8158?

NSN 3110-00-001-8158 has 11 cross-referenced part numbers: 990013-831 (Watkins-Johnson Co), 3110PL0961315 (Jednolity Indeks Materialowy - Uniform Material Index), SSZ99R10 (General Motors Corp Delco Moraine Ndh Div), 125C3781 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems), 101408-01 (General Dynamics Land Systems Inc. Div Gdls Global Llc) and 6 more.

What NSN replaces 3110-00-001-8158?

There are 4 known substitutes for 3110-00-001-8158: 3110-00-242-4866, 3110-00-710-4936, 3110-01-406-1870 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 990013-831?

Key specifications for 990013-831: Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OUTER RING; Load Direction: RADIAL; Internal Fit-Up Designation: STANDARD; Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE INNER RING. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-001-8158 still in active supply?

NSN 3110-00-001-8158 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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