PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M17931-C018Bearing,ball,annular

Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation · NSN 3110-00-992-1009 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-992-1009 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-992-1009. Primary manufacturer part number: M17931-C018.
Features
  • Bearing,ball,annular — FSC 3110
  • Seal Quantity: 2
  • Overall Outside Diameter: 5.1179 INCHES MINIMUM AND 5.1181 INCHES MAXIMUM IN
  • Bearing Seal Type: LIPS TURNED OUTWARDLY
  • Retainer Fabrication Method: PRESSED
  • Lubrication Material: GREASE
  • Bore Shape: STRAIGHT
  • Lubrication Material Document and Classification: MIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Retainer construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-992-1009, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-992-1009
Primary Part NumberM17931-C018
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerSchaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation
StatusCANCELLED
Seal Quantity2
Overall Outside Diameter5.1179 INCHES MINIMUM AND 5.1181 INCHES MAXIMUM IN
Bearing Seal TypeLIPS TURNED OUTWARDLY
Retainer Fabrication MethodPRESSED
Lubrication MaterialGREASE
Bore ShapeSTRAIGHT
Lubrication Material Document and ClassificationMIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
Surface FinishGROUND
Load DirectionRADIAL
Internal Clearance0.0007 INCHES MINIMUM RADIAL AND 0.0011 INCHES MAXIMUM RADIAL IN
Internal Fit-Up DesignationTIGHT
MaterialSTEEL RETAINER
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
MaterialRUBBER SYNTHETIC SEAL
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE BALL
MaterialSTEEL COMP E52100 BALL
MaterialSTEEL COMP E52100 INNER RING
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE INNER RING
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OUTER RING
MaterialSTEEL COMP E52100 OUTER RING
Nondefinitive Spec/std Data120 TYPE
Bore Diameter2.3620 INCHES MINIMUM AND 2.3622 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5305-00-330-9282S2883 INTERCHANGEABLE
Screw,pivot
Clark-Reliance Llc Dba Jerguson Gage & Valve
Cross-Reference Index
Part NumberManufacturer
M17931-C018 Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation (USA)
S3612E100 Nsk Corp Bearing Div (USA)
312SZZCNT3 Skf Usa Inc. (USA)
D78-944-27RAPC15 Ward Leonard Ct Llc (USA)
405850-76HH Reliance Electric (USA)
6312DDUCM Nsk Australia Pty Ltd (AUS)
M17931-C018 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M17931-C018 Timken Co Div the Timken Company (USA)
999999K176 Naval Ship Systems Command (USA)
S2883 Stone Safety Corp (USA)
MILB17931 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
405850-59H Reliance Electric (USA)
40580-76HH Reliance Electric (USA)
3110PL1386084 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
5305-00-330-9282INTERCHANGEABLE
SCREW,PIVOT
S2883

Frequently Asked Questions

What is NSN 3110-00-992-1009?

NSN 3110-00-992-1009 is a Bearing,ball,annular, manufactured by Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-992-1009?

NSN 3110-00-992-1009 has 14 cross-referenced part numbers: M17931-C018 (Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation), S3612E100 (Nsk Corp Bearing Div), 312SZZCNT3 (Skf Usa Inc.), D78-944-27RAPC15 (Ward Leonard Ct Llc), 405850-76HH (Reliance Electric) and 9 more.

What NSN replaces 3110-00-992-1009?

There is 1 known substitute for 3110-00-992-1009: 5305-00-330-9282. Verify interchangeability with system specifications before substitution.

What are the specifications of M17931-C018?

Key specifications for M17931-C018: Seal Quantity: 2; Overall Width: 2.1230 INCHES MINIMUM AND 2.1250 INCHES MAXIMUM IN; Overall Outside Diameter: 5.1179 INCHES MINIMUM AND 5.1181 INCHES MAXIMUM IN; Bearing Seal Type: LIPS TURNED OUTWARDLY. 23 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-992-1009 still in active supply?

NSN 3110-00-992-1009 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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