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Technical Data Sheet
PartsTable / COMPONENT / TT1001-2
TT1001-2 ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The BEARING,WASHER,THRUST is a the manufacturer industrial component. Key specifications include diameter: 0.5100 INCHES NOMINAL IN, material: OIL LUBRICATING LUBRICATION, corner_shape: SQUARE ALL CORNERS, outside_diameter: 1.0000 INCHES NOMINAL IN, style_designator: ROUND, overall_thickness: 0.0930 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-052-1746, 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
TT1001-2
NSN: 3120-00-052-1746
FSC: 3120
CAGE: 12204 — CHRYSLER REALTY COMPANY LLC DBA DAIMLER CHRYSLER (USA)
SPECIFICATIONS
diameter0.5100 INCHES NOMINAL IN
materialOIL LUBRICATING LUBRICATION
corner_shapeSQUARE ALL CORNERS
outside_diameter1.0000 INCHES NOMINAL IN
style_designatorROUND
overall_thickness0.0930 INCHES NOMINAL IN
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
nondefinitive_spec/std_data1 TYPE AND A COMPOSITION
material_document_and_classificationMIL-L-15016, SYMBOL 2190 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
NSN3120-00-052-1746
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: TT1001-2 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STYLE DESIGNATOR: ROUND
•
MATERIAL: OIL LUBRICATING LUBRICATION
•
CORNER SHAPE: SQUARE ALL CORNERS
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-5687,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OVERALL THICKNESS: 0.0930 INCHES NOMINAL IN
•
DIAMETER: 0.5100 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND A COMPOSITION
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORROUND
MATERIALOIL LUBRICATING LUBRICATION
CORNER SHAPESQUARE ALL CORNERS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-5687,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY OVERALL
OVERALL THICKNESS0.0930 INCHES NOMINAL IN
DIAMETER0.5100 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA1 TYPE AND A COMPOSITION
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OUTSIDE DIAMETER1.0000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
T100 1-2Interchangeable
interchangeable cross-reference
interchangeable
1794AS1024Interchangeable
interchangeable cross-reference
interchangeable
100C0375-1Interchangeable
interchangeable cross-reference
interchangeable
274-3017Interchangeable
interchangeable cross-reference
interchangeable
MILB5687Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TT1001-2?
TT1001-2 is a BEARING,WASHER,THRUST.
What parts can replace TT1001-2?
There are 5 known substitutes for TT1001-2: T100 1-2, 1794AS1024, 100C0375-1 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for TT1001-2?
TT1001-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-052-1746. 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