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Technical Data Sheet
PartsTable / COMPONENT / G27
G27 ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

CAPACITOR,FIXED,GLASS DIELECTRIC. Key specifications include swivel: NOT INCLUDED, material: STEEL, dial_size: 2-1/2 IN. DIA IN, head_type: STRAIGHT, bezel_type: THREAD, ring_style: CONCENTRIC.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-1769, indicating validated use in U.S. government and defense logistics supply chains.

Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
G27
NSN: 3110-00-156-1769
FSC: 3110
CAGE: 00658 — ABC ACQUISITION COMPANY DBA AETNA BEARING COMPANY (USA)
SPECIFICATIONS
swivelNOT INCLUDED
materialSTEEL
dial_size2-1/2 IN. DIA IN
head_typeSTRAIGHT
bezel_typeTHREAD
ring_styleCONCENTRIC
scale_namePRESSURE
scale_typeSINGLE
design_typeSTRAIGHT
joint_styleDIAGONAL JOINT
scale_range+0.0 TO 4000.0 POUNDS PRESSURE PER SQUARE INCH LBS
pointer_typeINDICATING
NSN3110-00-156-1769
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: G27 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OVERALL OUTSIDE DIAMETER: 3.3125 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP E51100 OR STEEL COMP E52100 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR THRUST BEARINGS
•
STYLE DESIGNATOR: GROOVED RACE SURFACE
•
BORE SMALLEST DIAMETER: 2.1250 INCHES NOMINAL IN
•
ALIGNMENT TYPE: RIGID
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER3.3125 INCHES NOMINAL IN
MATERIALSTEEL COMP E51100 OR STEEL COMP E52100 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR THRUST BEARINGS
OVERALL HEIGHT0.8750 INCHES NOMINAL IN
STYLE DESIGNATORGROOVED RACE SURFACE
BORE SMALLEST DIAMETER2.1250 INCHES NOMINAL IN
ALIGNMENT TYPERIGID
THRUST DIRECTIONAL CAPABILITY DESIGNATIONSINGLE
SURFACE FINISHGROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
4427Interchangeable
interchangeable cross-reference
interchangeable
AN280-406Interchangeable
interchangeable cross-reference
interchangeable
P113Interchangeable
interchangeable cross-reference
interchangeable
AN6H7AInterchangeable
interchangeable cross-reference
interchangeable
BS4-1903PC12Interchangeable
interchangeable cross-reference
interchangeable
BS4-1897PC12Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is G27?
G27 is a CAPACITOR,FIXED,GLASS DIELECTRIC.
What parts can replace G27?
There are 26 known substitutes for G27: 4427, AN280-406, P113 and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for G27?
G27 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-1769. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026