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Technical Data Sheet
11B8557 ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
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Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The GEAR,BEVEL is a the manufacturer industrial component. Key specifications include material: COPPER OVERALL, body_style: PLAIN, SOLID, bore_style: PLAIN BOTH ENDS, teeth_type: STRAIGHT, pitch_diameter: 2.4540 INCHES NOMINAL IN, pressure_angle: 20.0000 DEGREES. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-561-9495, 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
11B8557
NSN: 3020-00-561-9495
FSC: 3020
CAGE: 95201 — NAPCO INTERNATIONAL LLC DBA NAPCO INTERNATIONAL INC (USA)
SPECIFICATIONS
materialCOPPER OVERALL
body_stylePLAIN, SOLID
bore_stylePLAIN BOTH ENDS
teeth_typeSTRAIGHT
pitch_diameter2.4540 INCHES NOMINAL IN
pressure_angle20.0000 DEGREES
teeth_quantity11
hardness_rating57.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM OVERALL
face_nominal_width0.969 INCHES IN
bore_nominal_diameter0.926 INCHES BOTH ENDS IN
nominal_overall_length1.338 INCHES IN
nominal_outside_diameter2.9375 INCHES IN
NSN3020-00-561-9495
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR,BEVEL TITLE COMPONENT PN 11B8557 MFR GEAR,BEVEL
KEY FEATURES
BORE STYLE: PLAIN BOTH ENDS
TEETH TYPE: STRAIGHT
FACE NOMINAL WIDTH: 0.969 INCHES IN
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END: 0.188 INCHES SECOND END IN
HARDNESS RATING: 57.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE E434H ASSN STD SINGLE MATERIAL RESPONSE OVERALL
PITCH DIAMETER: 2.4540 INCHES NOMINAL IN
MATERIAL: COPPER OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
BORE STYLEPLAIN BOTH ENDS
TEETH TYPESTRAIGHT
FACE NOMINAL WIDTH0.969 INCHES IN
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.188 INCHES SECOND END IN
HARDNESS RATING57.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE E434H ASSN STD SINGLE MATERIAL RESPONSE OVERALL
PITCH DIAMETER2.4540 INCHES NOMINAL IN
MATERIALCOPPER OVERALL
NOMINAL OVERALL LENGTH1.338 INCHES IN
PRESSURE ANGLE20.0000 DEGREES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
10785Interchangeable
interchangeable cross-reference
interchangeable
7214Interchangeable
interchangeable cross-reference
interchangeable
907214Interchangeable
interchangeable cross-reference
interchangeable
506Interchangeable
interchangeable cross-reference
interchangeable
GGG-C-313 TY4CL1Interchangeable
interchangeable cross-reference
interchangeable
32505Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 11B8557?
11B8557 is a GEAR,BEVEL.
What parts can replace 11B8557?
There are 18 known substitutes for 11B8557: 10785, 7214, 907214 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 11B8557?
11B8557 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-561-9495. This indicates validated use in U.S. government and defense supply chains.
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