1988857 — GEAR,SPUR

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

1988857: GEAR,SPUR.

The GEAR,SPUR is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, body_style: PLAIN, SOLID, bore_style: PLAIN BOTH ENDS, tooth_form: STANDARD, pitch_diameter: 3.1250 INCHES NOMINAL IN, pressure_angle: 20.0000 DEGREES. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-684-3078, 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

1988857

NSN: 3020-00-684-3078
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	ALUMINUM ALLOY 6061 OVERALL
body_style	PLAIN, SOLID
bore_style	PLAIN BOTH ENDS
tooth_form	STANDARD
pitch_diameter	3.1250 INCHES NOMINAL IN
pressure_angle	20.0000 DEGREES
teeth_quantity	150
style_designator	HUBLESS
attachment_method	MOUNTING HOLE
surface_treatment	OXIDE FILM BODY
face_nominal_width	0.125 INCHES IN
bore_nominal_diameter	0.241 INCHES BOTH ENDS IN
NSN	3020-00-684-3078

COMPONENT DIAGRAM

KEY FEATURES

•

BORE NOMINAL DIAMETER: 0.241 INCHES BOTH ENDS IN

•

TEETH QUANTITY: 150

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE BODY

•

BODY STYLE: PLAIN, SOLID

•

BORE STYLE: PLAIN BOTH ENDS

•

MOUNTING HOLE TYPE AND QUANTITY: 3 COUNTERSUNK AXIALLY THROUGH BODY FIRST END

•

MOUNTING HOLE NOMINAL DIAMETER: 0.104 INCHES AXIALLY THROUGH BODY FIRST END IN

•

STYLE DESIGNATOR: HUBLESS

TECHNICAL CHARACTERISTICS

BORE NOMINAL DIAMETER	0.241 INCHES BOTH ENDS IN
TEETH QUANTITY	150
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE BODY
BODY STYLE	PLAIN, SOLID
BORE STYLE	PLAIN BOTH ENDS
MOUNTING HOLE TYPE AND QUANTITY	3 COUNTERSUNK AXIALLY THROUGH BODY FIRST END
MOUNTING HOLE NOMINAL DIAMETER	0.104 INCHES AXIALLY THROUGH BODY FIRST END IN
STYLE DESIGNATOR	HUBLESS
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-250/11,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
PITCH DIAMETER	3.1250 INCHES NOMINAL IN

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.

3020-00-001-2090 3020-00-001-4468 3020-00-007-2779 3020-00-009-4033 3020-00-031-2269 3020-00-146-4181 3020-00-146-4222 3020-00-425-7115

SUBSTITUTES & CROSS-REFERENCES 1

1988857REVBReference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — stock exhausted; no further procurementDemilitarization required — mutilation

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FREQUENTLY ASKED QUESTIONS

What is 1988857?

1988857 is a GEAR,SPUR.

What parts can replace 1988857?

There is 1 known substitute for 1988857: 1988857REVB. Substitute compatibility should be verified for your specific system.

What is the NSN for 1988857?

1988857 is cataloged in the U.S. Government catalog under NSN 3020-00-684-3078. This indicates validated use in U.S. government and defense supply chains.

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1988857 — GEAR,SPUR

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