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1439 — BEARING,ROLLER,TAPERED

✓ Government record, cited
BOHLT · MRO · MRO_GENERAL
PRODUCT OVERVIEW

1439: BEARING,ROLLER,TAPERED.

Unisex large saddle, compatible with the URBAN. Key specifications include width: 5.000 INCHES NOMINAL AND 6.250 INCHES NOMINAL IN, length: 9.750 INCHES NOMINAL IN, material: STEEL OVERALL, cup_width: 0.9688 INCHES NOMINAL IN, body_style: COAXIAL TYPE, cone_width: 1.1406 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-100-5356, 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
MRO→ MRO_GENERAL→ 1439
NSN: 3110-00-100-5356
NIINs: 001005356, 002080042, 004929809, 005083266, 006186903, 008042758, 008440692, 009454234, 010627501, 011788842, 012564612, 014394162, 016520335, 016812119
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 13841 — TIFFIN PARTS, L.L.C. DIV SUBSIDIARY OF PETTIBONE CORP. (USA)
SPECIFICATIONS
width5.000 INCHES NOMINAL AND 6.250 INCHES NOMINAL IN
length9.750 INCHES NOMINAL IN
materialSTEEL OVERALL
cup_width0.9688 INCHES NOMINAL IN
body_styleCOAXIAL TYPE
cone_width1.1406 INCHES NOMINAL IN
head_styleHEXAGON
head_height0.250 INCHES NOMINAL IN
point_styleCHAMFER DOG
control_typeREMOTE
overall_gain10000.0 VOLTS
point_length0.250 INCHES NOMINAL IN
NSN3110-00-100-5356
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1439 · BOHLT ⚠ 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
•
CUP WIDTH: 0.9688 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT BORE, NORMAL ANGLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE CUP
•
OVERALL OUTSIDE DIAMETER: 5.8750 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.1300 INCHES NOMINAL IN
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
CUP WIDTH0.9688 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT BORE, NORMAL ANGLE
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE CUP
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE ROLLER
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE CONE
OVERALL WIDTH1.2500 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER5.8750 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.1300 INCHES NOMINAL IN
CONE CORNER RADIUS0.1200 INCHES NOMINAL IN
STANDOUT WIDTH0.2812 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 8
FF-B-187 REV BReference document
Same NSN cross-reference
Reference document — Secondary reference
316-572B3-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
42350-42587Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS19081Reference document
Same NSN cross-reference
Reference document — Secondary reference
2E3-71 PIECE 47Reference document
Same NSN cross-reference
Reference document — Secondary reference
14561-384Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1439?
1439 is a BEARING,ROLLER,TAPERED manufactured by BOHLT. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1439?
There are 8 known substitutes for 1439: FF-B-187 REV B, 316-572B3-4, 42350-42587 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1439?
1439 is cataloged in the U.S. Government catalog under NSN 3110-00-100-5356. 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.