2121724 — GEAR,HELICAL

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

2121724: GEAR,HELICAL.

The GEAR,HELICAL is a the manufacturer industrial component. Key specifications include material: STEEL COMP EZ OVERALL, body_style: PLAIN, SOLID, bore_style: W/ KEYWAY BOTH ENDS, teeth_type: SINGLE HELIX, tooth_form: STANDARD, helix_angle: 7.5000 DEGREES. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-820-6147, 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

2121724

NSN: 3020-00-820-6147
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)

SPECIFICATIONS

material	STEEL COMP EZ OVERALL
body_style	PLAIN, SOLID
bore_style	W/ KEYWAY BOTH ENDS
teeth_type	SINGLE HELIX
tooth_form	STANDARD
helix_angle	7.5000 DEGREES
pitch_diameter	1.5000 INCHES NOMINAL IN
pressure_angle	34.0000 DEGREES
teeth_quantity	10
hardness_rating	90.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 94.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
tooth_direction	LEFT
style_designator	HUBLESS
NSN	3020-00-820-6147

COMPONENT DIAGRAM

KEY FEATURES

•

KEYWAY NOMINAL WIDTH: 0.126 INCHES BOTH ENDS IN

•

BORE NOMINAL DIAMETER: 0.747 INCHES BOTH ENDS IN

•

HELIX ANGLE: 7.5000 DEGREES

•

TEETH QUANTITY: 10

•

BODY STYLE: PLAIN, SOLID

•

TOOTH DIRECTION: LEFT

•

BORE STYLE: W/ KEYWAY BOTH ENDS

•

TEETH TYPE: SINGLE HELIX

TECHNICAL CHARACTERISTICS

KEYWAY NOMINAL WIDTH	0.126 INCHES BOTH ENDS IN
BORE NOMINAL DIAMETER	0.747 INCHES BOTH ENDS IN
HELIX ANGLE	7.5000 DEGREES
TEETH QUANTITY	10
BODY STYLE	PLAIN, SOLID
TOOTH DIRECTION	LEFT
BORE STYLE	W/ KEYWAY BOTH ENDS
TEETH TYPE	SINGLE HELIX
HARDNESS RATING	90.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 94.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
STYLE DESIGNATOR	HUBLESS

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

4320PL0927647Reference document

Same NSN cross-reference

Reference document — Informative reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 2121724?

2121724 is a GEAR,HELICAL.

What parts can replace 2121724?

There is 1 known substitute for 2121724: 4320PL0927647. Substitute compatibility should be verified for your specific system.

What is the NSN for 2121724?

2121724 is cataloged in the U.S. Government catalog under NSN 3020-00-820-6147. This indicates validated use in U.S. government and defense supply chains.

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2121724 — GEAR,HELICAL

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