PartsTable
Technical Data Sheet
PartsTable / MRO / 1540-30
1540-30 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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

TERMINAL JUNCTION BLOCK,SECTIONA. Key specifications include unit_design: DESK TOP, overall_width: 4.750 INCHES NOMINAL IN, interface_type: SCSI, overall_height: 2.000 INCHES NOMINAL IN, overall_length: 8.375 INCHES NOMINAL IN, special_features: 2 INTERFACES-PARALLEL PORT AND USB. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-554-3318, 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→ 1540-30
NSN: 3110-00-554-3318
FSC: 3110
CAGE: 31577 — JAEGER MACHINE CO (USA)
SPECIFICATIONS
unit_designDESK TOP
overall_width4.750 INCHES NOMINAL IN
drive_quantity1
interface_typeSCSI
overall_height2.000 INCHES NOMINAL IN
overall_length8.375 INCHES NOMINAL IN
special_features2 INTERFACES-PARALLEL PORT AND USB
operating_temp_range+41.0 TO 131.0 FAHRENHEIT DEGF
NSN3110-00-554-3318
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1540-30 · 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
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
MATERIAL: STEEL OVERALL
•
BORE SHAPE: STRAIGHT
•
OVERALL OUTSIDE DIAMETER: 85.00 MILLIMETERS NOMINAL MM
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISHGROUND
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
MATERIALSTEEL OVERALL
BORE SHAPESTRAIGHT
OVERALL OUTSIDE DIAMETER85.00 MILLIMETERS NOMINAL MM
STANDARD TOLERANCE DESIGNATIONABEC NO.1
OVERALL WIDTH19.00 MILLIMETERS NOMINAL MM
SPECIAL FEATURESTYPE 111, CLASS 4, GRADE 00
BORE DIAMETER45.00 MILLIMETERS NOMINAL MM
LOAD DIRECTIONRADIAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
D72405Interchangeable
interchangeable cross-reference
interchangeable
72405Interchangeable
interchangeable cross-reference
interchangeable
ST342Interchangeable
interchangeable cross-reference
interchangeable
10092Interchangeable
interchangeable cross-reference
interchangeable
79087-003Interchangeable
interchangeable cross-reference
interchangeable
601Y9Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1540-30?
1540-30 is a TERMINAL JUNCTION BLOCK,SECTIONA. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1540-30?
There are 29 known substitutes for 1540-30: D72405, 72405, ST342 and 26 more. Substitute compatibility should be verified for your specific system.
Is 1540-30 still available?
1540-30 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026