PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BACB10A649ABearing,ball,airframe

Timken Co Div the Timken Company · NSN 3110-00-930-7256 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-930-7256 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-930-7256. Primary manufacturer part number: BACB10A649A.
Features
  • Bearing,ball,airframe — FSC 3110
  • Outer Ring Width: 0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
  • Bore Diameter: 0.3745 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
  • Inner Ring Width: 0.3080 INCHES MINIMUM AND 0.3130 INCHES MAXIMUM IN
  • Style Designator: SINGLE ROW INNER RING EXTENDED BOTH SIDES
  • Surface Treatment: CADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES
  • Overall Outside Diameter: 0.8745 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
  • 8 verified cross-references
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing,ball,airframe, cataloged under National Stock Number 3110-00-930-7256, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Timken Co Div the Timken Company. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-930-7256
Primary Part NumberBACB10A649A
Item NameBearing,ball,airframe
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerTimken Co Div the Timken Company
StatusACTIVE
Outer Ring Width0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
Bore Diameter0.3745 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
Inner Ring Width0.3080 INCHES MINIMUM AND 0.3130 INCHES MAXIMUM IN
Style DesignatorSINGLE ROW INNER RING EXTENDED BOTH SIDES
Surface TreatmentCADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES
Overall Outside Diameter0.8745 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3040-00-445-84515832 INTERCHANGEABLE
Connecting Link,rigid
Goodrich Aerospace Canada Ltd
2805-00-448-348858-32 INTERCHANGEABLE
Guide,valve Stem
Dresser Industries Inc Leroi Div
6105-01-361-54045N811 INTERCHANGEABLE
Motor,alternating Current
W.w. Grainger, Inc. Div Government Sales Division
6515-01-387-54615832 INTERCHANGEABLE
Splint,wrist and Thumb
Alimed, Inc. Dba Alimed Inc
5305-01-479-28125832 INTERCHANGEABLE
Screw,cap,hexagon Head
Independent Rough Terrain Center Llc
6515-01-559-5855GC-2000 INTERCHANGEABLE
Support,pelvic
Pelvicbinder, Inc Dba Pelvic Binder Inc Div Pelvic Binder
5965-01-645-77765832 INTERCHANGEABLE
Mouthpiece,microphone
Teledyne Flir Unmanned Ground Systems, Inc
Cross-Reference Index
Part NumberManufacturer
BACB10A649A PRIMARY Timken Co Div the Timken Company (USA)
BACB10A649A PRIMARY New Hampshire Ball Bearings Inc Div Hitech Division (USA)
BACB10A649A PRIMARY Mpb Corp Div Timken Super Precision (USA)
5832 Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings (USA)
BACB10A649A The Boeing Company Div Defense (USA)
BACB10A649A PRIMARY New Hampshire Ball Bearings Inc Div Precision Division (USA)
BACB10A649A PRIMARY Rbc Aircraft Products, Inc. (USA)
AKP6AE8510 Timken Co Div the Timken Company (USA)
Related Parts
3040-00-445-8451INTERCHANGEABLE
CONNECTING LINK,RIGID
5832
2805-00-448-3488INTERCHANGEABLE
GUIDE,VALVE STEM
58-32
6105-01-361-5404INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
5N811
6515-01-387-5461INTERCHANGEABLE
SPLINT,WRIST AND THUMB
5832
5305-01-479-2812INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5832
6515-01-559-5855INTERCHANGEABLE
SUPPORT,PELVIC
GC-2000
5965-01-645-7776INTERCHANGEABLE
MOUTHPIECE,MICROPHONE
5832

Frequently Asked Questions

What is NSN 3110-00-930-7256?

NSN 3110-00-930-7256 is a Bearing,ball,airframe, manufactured by Timken Co Div the Timken Company, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-930-7256?

NSN 3110-00-930-7256 has 8 cross-referenced part numbers: BACB10A649A (Timken Co Div the Timken Company), BACB10A649A (New Hampshire Ball Bearings Inc Div Hitech Division), BACB10A649A (Mpb Corp Div Timken Super Precision), 5832 (Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings), BACB10A649A (The Boeing Company Div Defense) and 3 more.

What NSN replaces 3110-00-930-7256?

There are 7 known substitutes for 3110-00-930-7256: 3040-00-445-8451, 2805-00-448-3488, 6105-01-361-5404 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of BACB10A649A?

Key specifications for BACB10A649A: Outer Ring Width: 0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN; Bore Diameter: 0.3745 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN; Inner Ring Width: 0.3080 INCHES MINIMUM AND 0.3130 INCHES MAXIMUM IN; Style Designator: SINGLE ROW INNER RING EXTENDED BOTH SIDES. 6 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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