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B566-281 — GEAR,INTERNAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

B566-281: GEAR,INTERNAL.

The GEAR,INTERNAL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, body_style: PLAIN, SOLID, teeth_type: SPUR, tooth_form: STANDARD, pitch_diameter: 5.0938 INCHES NOMINAL IN, pressure_angle: 20.0000 DEGREES. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-896-6767, 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
B566-281
NSN: 3020-00-896-6767
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 34228 — L3 TECHNOLOGIES, INC. DIV L3 KEO (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
body_stylePLAIN, SOLID
teeth_typeSPUR
tooth_formSTANDARD
pitch_diameter5.0938 INCHES NOMINAL IN
pressure_angle20.0000 DEGREES
teeth_quantity163
style_designatorPLAIN RING
surface_treatmentPASSIVATE OVERALL
face_nominal_width0.2500 INCHES IN
nominal_outside_diameter6.2497 INCHES IN
precision_classificationQUALITY NUMBER 10
NSN3020-00-896-6767
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR,INTERNAL TITLE COMPONENT PN B566-281 MFR GEAR,INTERNAL
KEY FEATURES
•
TEETH QUANTITY: 163
•
BODY STYLE: PLAIN, SOLID
•
PRECISION CLASSIFICATION: QUALITY NUMBER 10
•
TEETH TYPE: SPUR
•
STYLE DESIGNATOR: PLAIN RING
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
PITCH DIAMETER: 5.0938 INCHES NOMINAL IN
•
TOOTH FORM: STANDARD
TECHNICAL CHARACTERISTICS
TEETH QUANTITY163
BODY STYLEPLAIN, SOLID
PRECISION CLASSIFICATIONQUALITY NUMBER 10
TEETH TYPESPUR
STYLE DESIGNATORPLAIN RING
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
PITCH DIAMETER5.0938 INCHES NOMINAL IN
TOOTH FORMSTANDARD
NOMINAL OUTSIDE DIAMETER6.2497 INCHES IN
SURFACE TREATMENTPASSIVATE OVERALL
OTHER ITEMS IN FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3020-00-000-0091 3020-00-001-0027 3020-00-001-0028 3020-00-001-0063 3020-00-001-0064 3020-00-001-0066 3020-00-001-0071 3020-00-001-0072
SUBSTITUTES & CROSS-REFERENCES 1
566B004916Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is B566-281?
B566-281 is a GEAR,INTERNAL.
What parts can replace B566-281?
There is 1 known substitute for B566-281: 566B004916. Substitute compatibility should be verified for your specific system.
What is the NSN for B566-281?
B566-281 is cataloged in the U.S. Government catalog under NSN 3020-00-896-6767. 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.