A168-2-1 — GEAR,ANTIBACKLASH,SPUR

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

A168-2-1: GEAR,ANTIBACKLASH,SPUR.

The GEAR,ANTIBACKLASH,SPUR is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 HUB, bore_style: PLAIN BOTH ENDS, pitch_diameter: 4.1250 INCHES NOMINAL IN, pressure_angle: 20.0000 DEGREES, teeth_quantity: 33, style_designator: PROTRUDING HUB. This part is cataloged in the U.S.

Government catalog under NSN 3020-01-425-8211, 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

A168-2-1

NSN: 3020-01-425-8211
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 26420 — ASTRO GEAR AND INSTRUMENT CO INC (USA)

SPECIFICATIONS

material	STEEL COMP 303 HUB
bore_style	PLAIN BOTH ENDS
pitch_diameter	4.1250 INCHES NOMINAL IN
pressure_angle	20.0000 DEGREES
teeth_quantity	33
style_designator	PROTRUDING HUB
attachment_method	SLOT
surface_treatment	PASSIVATE OVERALL
face_nominal_width	0.250 INCHES IN
hub_nominal_diameter	0.248 INCHES SECOND END IN
hub_style_designator	SPLIT SECOND END
bore_nominal_diameter	0.187 INCHES BOTH ENDS IN
NSN	3020-01-425-8211

COMPONENT DIAGRAM

KEY FEATURES

•

BORE NOMINAL DIAMETER: 0.187 INCHES BOTH ENDS IN

•

HUB NOMINAL DIAMETER: 0.248 INCHES SECOND END IN

•

TEETH QUANTITY: 33

•

CLAMPING SURFACE NOMINAL LENGTH: 0.250 INCHES SECOND END IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-STD-171 MIL STD SINGLE TREATMENT RESPONSE OVERALL

•

BORE STYLE: PLAIN BOTH ENDS

•

NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END: 0.310 INCHES SECOND END IN

•

PRECISION CLASSIFICATION: QUALITY NUMBER 10

TECHNICAL CHARACTERISTICS

BORE NOMINAL DIAMETER	0.187 INCHES BOTH ENDS IN
HUB NOMINAL DIAMETER	0.248 INCHES SECOND END IN
TEETH QUANTITY	33
CLAMPING SURFACE NOMINAL LENGTH	0.250 INCHES SECOND END IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-STD-171 MIL STD SINGLE TREATMENT RESPONSE OVERALL
BORE STYLE	PLAIN BOTH ENDS
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END	0.310 INCHES SECOND END IN
PRECISION CLASSIFICATION	QUALITY NUMBER 10
STYLE DESIGNATOR	PROTRUDING HUB
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM-A313 ASSN STD SINGLE MATERIAL RESPONSE SPRING

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

12373388Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 A168-2-1?

A168-2-1 is a GEAR,ANTIBACKLASH,SPUR.

What parts can replace A168-2-1?

There is 1 known substitute for A168-2-1: 12373388. Substitute compatibility should be verified for your specific system.

What is the NSN for A168-2-1?

A168-2-1 is cataloged in the U.S. Government catalog under NSN 3020-01-425-8211. This indicates validated use in U.S. government and defense supply chains.

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A168-2-1 — GEAR,ANTIBACKLASH,SPUR

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