PartsTable
Technical Data Sheet
170720-5 ✓ 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 GEAR,ANTIBACKLASH,SPUR is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, tooth_form: STANDARD, pitch_diameter: 2.3433 INCHES NOMINAL IN, pressure_angle: 20.0000 DEGREES, teeth_quantity: 120, style_designator: PROTRUDING HUB. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-478-9339, 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
170720-5
NSN: 3120-00-478-9339
FSC: 3120
CAGE: 13002 — GOODRICH CORPORATION DIV ADVANCED STRUCTURES LANDING SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
tooth_formSTANDARD
pitch_diameter2.3433 INCHES NOMINAL IN
pressure_angle20.0000 DEGREES
teeth_quantity120
style_designatorPROTRUDING HUB
surface_treatmentPASSIVATE OVERALL
face_nominal_width0.104 INCHES IN
backlash_designationGRADE C
hub_nominal_diameter0.500 INCHES FIRST END IN
bore_nominal_diameter0.250 INCHES BOTH ENDS IN
nominal_overall_length0.385 INCHES IN
NSN3120-00-478-9339
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 170720-5 · 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
BODY OUTSIDE DIAMETER: 2.2485 INCHES MINIMUM AND 2.2495 INCHES MAXIMUM IN
HARDNESS RATING: 35.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
SURFACE FINISH: 125.0 MICROINCHES INTERMEDIATE LAYER
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
MATERIAL: STEEL COMP 630 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
BODY INSIDE DIAMETER: 2.0000 INCHES MINIMUM AND 2.0010 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
BODY OUTSIDE DIAMETER2.2485 INCHES MINIMUM AND 2.2495 INCHES MAXIMUM IN
HARDNESS RATING35.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
SURFACE FINISH125.0 MICROINCHES INTERMEDIATE LAYER
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
MATERIALSTEEL COMP 630 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
BODY INSIDE DIAMETER2.0000 INCHES MINIMUM AND 2.0010 INCHES MAXIMUM IN
OVERALL LENGTH2.7780 INCHES MINIMUM AND 2.7790 INCHES MAXIMUM IN
CORNER SHAPESQUARE ALL CORNERS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
170720-5Interchangeable
interchangeable cross-reference
interchangeable
170720Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 170720-5?
170720-5 is a GEAR,ANTIBACKLASH,SPUR.
What parts can replace 170720-5?
There are 2 known substitutes for 170720-5: 170720-5, 170720. Substitute compatibility should be verified for your specific system.
What is the NSN for 170720-5?
170720-5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-478-9339. This indicates validated use in U.S. government and defense supply chains.
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