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432777 — CUP,TAPERED ROLLER BEARING

✓ Government record, cited
Braun · TAPERED BEARING
PRODUCT OVERVIEW

432777: CUP,TAPERED ROLLER BEARING.

The CUP,TAPERED ROLLER BEARING is a Braun tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include thread_series_designator: UNS. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-100-0545, 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
432777
NSN: 3110-00-100-0545
NIINs: 001000545, 012783403
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
thread_series_designatorUNS
NSN3110-00-100-0545
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 432777 · Braun ⚠ 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
•
STYLE DESIGNATOR: NORMAL ANGLE
•
OUTSIDE DIAMETER: 3.2700 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.1250 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
MATERIAL: STEEL OVERALL
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORNORMAL ANGLE
OVERALL WIDTH0.7500 INCHES NOMINAL IN
OUTSIDE DIAMETER3.2700 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.1250 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 8
ST977Reference document
Same NSN cross-reference
Reference document — Secondary reference
AA59649-270BSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
AA59649Reference document
Same NSN cross-reference
Reference document — Identification reference
BT25521Reference document
Same NSN cross-reference
Reference document — Secondary reference
706851Reference document
Same NSN cross-reference
Reference document — Secondary reference
1300194Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 432777?
432777 is a CUP,TAPERED ROLLER BEARING manufactured by Braun.
What parts can replace 432777?
There are 8 known substitutes for 432777: ST977, AA59649-270B, AA59649 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 432777?
432777 is cataloged in the U.S. Government catalog under NSN 3110-00-100-0545. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.