PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-B-81793/8Bearing,ball,annular

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 3110-00-073-2640 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-073-2640 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-073-2640. Primary manufacturer part number: MIL-B-81793/8.
Features
  • Bearing,ball,annular — FSC 3110
  • Standard Tolerance Designation: ABEC NO. 7P
  • Bore Diameter: 0.0937 INCHES NOMINAL IN
  • Internal Clearance: 0.0002 INCHES MINIMUM RADIAL AND 0.0005 INCHES MAXIMUM RADIAL IN
  • Bore Shape: STRAIGHT
  • Load Direction: RADIAL
  • Material: STEEL CORROSION RESISTING OVERALL
  • Surface Finish: GROUND
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-073-2640, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 29 commercial cross-references from 16 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-073-2640
Primary Part NumberMIL-B-81793/8
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Standard Tolerance DesignationABEC NO. 7P
Bore Diameter0.0937 INCHES NOMINAL IN
Internal Clearance0.0002 INCHES MINIMUM RADIAL AND 0.0005 INCHES MAXIMUM RADIAL IN
Bore ShapeSTRAIGHT
Load DirectionRADIAL
MaterialSTEEL CORROSION RESISTING OVERALL
Surface FinishGROUND
Outer Ring Outside Diameter0.1875 INCHES NOMINAL IN
Flange Outside Diameter0.2340 INCHES NOMINAL IN
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
Flange Width0.0180 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-053-0912 INTERCHANGEABLE
Valve,safety Relief
5330-00-127-7162 INTERCHANGEABLE
Gasket
6625-00-250-1330MIS-10255 INTERCHANGEABLE
Generator,signal
Us Army Aviation and Missile Command
5325-00-298-9458197083 INTERCHANGEABLE
Ring,retaining
Honeywell International Inc Div Aerospace-South Bend (bendix Dr)
5935-00-353-21477756235 INTERCHANGEABLE
Connector,receptacle,electrical
Ogden Air Logistics Center
3030-00-528-4629 INTERCHANGEABLE
Belt,v
3110-00-679-4154445987 INTERCHANGEABLE
Bearing,ball,annular
Honeywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis
3110-00-724-9068131-0234-017 INTERCHANGEABLE
Bearing,ball,annular
New Hampshire Ball Bearings Inc Div Hitech Division
5935-00-836-285227-10 INTERCHANGEABLE
Connector,receptacle,electrical
Amphenol Corporation Div Amphenol Rf
4820-00-853-1715 INTERCHANGEABLE
Valve,plug
Cross-Reference Index
Part NumberManufacturer
MIL-B-81793/8 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
1788709-1 Honeywell Intl Inc Defense Avionics Systems (USA)
1788709-1 Honeywell International Inc. Dba Honeywell International (USA)
2710 Reed Instrument Bearing Co (USA)
SFR133 S/n Precision Enterprises, Inc. Dba Pacamor /kubar Bearings (USA)
SFR133K25/7 New Hampshire Ball Bearings Inc Div Hitech Division (USA)
S3332FCP35L01 Mpb Corp Div Timken Super Precision (USA)
M81793-DSSSAN01AD71AB1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
534431 Honeywell International, Inc Div Aerospace-Tucson (USA)
M81793-DEEBAN01AC71AB1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
64112029 Moog Inc. Dba Moog Components Group (USA)
S3332FCL0C4 Mpb Corp Div Timken Super Precision (USA)
NM0612ZD5J General Motors Corp Delco Moraine Ndh Div (USA)
400-611-003-2 Recon/optical, Inc. (USA)
M81793-DEEBAN01AC71AA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
553332F Mpb Corp Div Timken Super Precision (USA)
SS332FCP25L04 Mpb Corp Div Timken Super Precision (USA)
SFR133K0-11 Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation (USA)
6013-322 Instrument Systems Corp (USA)
S3332FC Mpb Corp Div Timken Super Precision (USA)
Related Parts
4820-00-053-0912INTERCHANGEABLE
VALVE,SAFETY RELIEF
5330-00-127-7162INTERCHANGEABLE
GASKET
6625-00-250-1330INTERCHANGEABLE
GENERATOR,SIGNAL
MIS-10255
5325-00-298-9458INTERCHANGEABLE
RING,RETAINING
197083
5935-00-353-2147INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
7756235
3030-00-528-4629INTERCHANGEABLE
BELT,V
3110-00-679-4154INTERCHANGEABLE
BEARING,BALL,ANNULAR
445987
3110-00-724-9068INTERCHANGEABLE
BEARING,BALL,ANNULAR
131-0234-017
5935-00-836-2852INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
27-10
4820-00-853-1715INTERCHANGEABLE
VALVE,PLUG
5845-01-087-5302INTERCHANGEABLE
COUNTER ROLLER ASSE
53443-1
4820-01-098-5211INTERCHANGEABLE
STEM,FLUID VALVE
2710

Frequently Asked Questions

What is NSN 3110-00-073-2640?

NSN 3110-00-073-2640 is a Bearing,ball,annular, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-073-2640?

NSN 3110-00-073-2640 has 29 cross-referenced part numbers: MIL-B-81793/8 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 1788709-1 (Honeywell Intl Inc Defense Avionics Systems), 1788709-1 (Honeywell International Inc. Dba Honeywell International), 2710 (Reed Instrument Bearing Co), SFR133 (S/n Precision Enterprises, Inc. Dba Pacamor /kubar Bearings) and 24 more.

What NSN replaces 3110-00-073-2640?

There are 12 known substitutes for 3110-00-073-2640: 4820-00-053-0912, 5330-00-127-7162, 6625-00-250-1330 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-B-81793/8?

Key specifications for MIL-B-81793/8: Standard Tolerance Designation: ABEC NO. 7P; Bore Diameter: 0.0937 INCHES NOMINAL IN; Internal Clearance: 0.0002 INCHES MINIMUM RADIAL AND 0.0005 INCHES MAXIMUM RADIAL IN; Bore Shape: STRAIGHT. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-073-2640 still in active supply?

NSN 3110-00-073-2640 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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