PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M17931-A032Bearing,ball,duplex

Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation · NSN 3110-00-992-1015 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-992-1015 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-992-1015. Primary manufacturer part number: M17931-A032.
Features
  • Bearing,ball,duplex — FSC 3110
  • Overall Outside Diameter: 6.2990 INCHES MINIMUM AND 6.2992 INCHES MAXIMUM IN
  • Departure From Cited Document: ANNUAL BALL BEARING FOR QUIET OPERATION APPLICATION TO SUBMARINE USAGE
  • Nondefinitive Spec/std Data: 134 TYPE AND 1 CLASS
  • Material: GREASE LUBRICATION
  • Style Designator: UNIVERSAL GROUND FACES, COUNTERBORED OUTER RING, NON-SEPARABLE
  • Material: STEEL OVERALL
  • Internal Fit-Up Designation: TIGHT
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Grease Lubrication construction
General Description

The Bearing,ball,duplex, cataloged under National Stock Number 3110-00-992-1015, 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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 17 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-992-1015
Primary Part NumberM17931-A032
Item NameBearing,ball,duplex
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerSchaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation
StatusACTIVE
Overall Outside Diameter6.2990 INCHES MINIMUM AND 6.2992 INCHES MAXIMUM IN
Departure From Cited DocumentANNUAL BALL BEARING FOR QUIET OPERATION APPLICATION TO SUBMARINE USAGE
Nondefinitive Spec/std Data134 TYPE AND 1 CLASS
MaterialGREASE LUBRICATION
Style DesignatorUNIVERSAL GROUND FACES, COUNTERBORED OUTER RING, NON-SEPARABLE
MaterialSTEEL OVERALL
Internal Fit-Up DesignationTIGHT
Surface FinishGROUND
Load DirectionANGULAR
Criticality Code JustificationZZZW
Retainer Fabrication MethodPRESSED
Lubrication Material Document and ClassificationMIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
Bore Diameter2.9526 INCHES MINIMUM AND 2.9528 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3110-00-987-3735313SNT3 INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
2530-01-694-7391A13121.0.01 INTERCHANGEABLE
Tank,pressure
Vse Corporation
Cross-Reference Index
Part NumberManufacturer
M17931-A032 Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation (USA)
3NPS1NT Naval Inventory Control Point Mechanicsburg (USA)
7315DSXX00X015B13DG655B Skf Usa Inc. (USA)
MIL-B-17931NT Naval Inventory Control Point Mechanicsburg (USA)
79999009 Electric Boat Corp Dba Electro Dynamic (USA)
Q30315DTLS7088V4 General Motors Corp Delco Moraine Ndh Div (USA)
M17931-A032NT Naval Inventory Control Point Mechanicsburg (USA)
A13121.0.01NT Naval Inventory Control Point Mechanicsburg (USA)
D364-4GP1PC14 Electric Boat Corp Dba Electro Dynamic (USA)
MIL-B-17931 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M17931-A032 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
134-07503-8887 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
999999K182 Naval Ship Systems Command (USA)
30315DTL7077 General Motors Corp (USA)
3NPS1 Rbc Aircraft Products, Inc. (USA)
M17931-A032 Timken Co Div the Timken Company (USA)
A13121.0.01 Vse Corporation (USA)
Related Parts
3110-00-987-3735INTERCHANGEABLE
BEARING,BALL,ANNULAR
313SNT3
2530-01-694-7391INTERCHANGEABLE
TANK,PRESSURE
A13121.0.01

Frequently Asked Questions

What is NSN 3110-00-992-1015?

NSN 3110-00-992-1015 is a Bearing,ball,duplex, manufactured by Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-992-1015?

NSN 3110-00-992-1015 has 17 cross-referenced part numbers: M17931-A032 (Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation), 3NPS1NT (Naval Inventory Control Point Mechanicsburg), 7315DSXX00X015B13DG655B (Skf Usa Inc.), MIL-B-17931NT (Naval Inventory Control Point Mechanicsburg), 79999009 (Electric Boat Corp Dba Electro Dynamic) and 12 more.

What NSN replaces 3110-00-992-1015?

There are 2 known substitutes for 3110-00-992-1015: 3110-00-987-3735, 2530-01-694-7391. Verify interchangeability with system specifications before substitution.

What are the specifications of M17931-A032?

Key specifications for M17931-A032: Overall Outside Diameter: 6.2990 INCHES MINIMUM AND 6.2992 INCHES MAXIMUM IN; Departure From Cited Document: ANNUAL BALL BEARING FOR QUIET OPERATION APPLICATION TO SUBMARINE USAGE; Nondefinitive Spec/std Data: 134 TYPE AND 1 CLASS; Material: GREASE LUBRICATION. 14 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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