181885-1 — GEAR,SPUR

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

181885-1: GEAR,SPUR.

The GEAR,SPUR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_style: PLAIN, SOLID, bore_style: PLAIN BOTH ENDS, tooth_form: SPECIAL, pitch_diameter: 0.5625 INCHES NOMINAL IN, pressure_angle: 25.0000 DEGREES. This part is cataloged in the U.S.

Government catalog under NSN 3020-01-128-1690, 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

181885-1

NSN: 3020-01-128-1690
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 71791 — CURTISS-WRIGHT CONTROLS, INC. DBA CURTISS WRIGHT DIV ACTUATION DIVISION (USA)

SPECIFICATIONS

material	STEEL OVERALL
body_style	PLAIN, SOLID
bore_style	PLAIN BOTH ENDS
tooth_form	SPECIAL
pitch_diameter	0.5625 INCHES NOMINAL IN
pressure_angle	25.0000 DEGREES
teeth_quantity	27
style_designator	HUBLESS
surface_treatment	CADMIUM OVERALL
face_nominal_width	0.255 INCHES IN
bore_nominal_diameter	0.278 INCHES BOTH ENDS IN
nominal_outside_diameter	0.616 INCHES IN
NSN	3020-01-128-1690

COMPONENT DIAGRAM

KEY FEATURES

•

BORE NOMINAL DIAMETER: 0.278 INCHES BOTH ENDS IN

•

TEETH QUANTITY: 27

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-8837,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL

•

BODY STYLE: PLAIN, SOLID

•

BORE STYLE: PLAIN BOTH ENDS

•

STYLE DESIGNATOR: HUBLESS

•

MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-8848,CLASS 3,COND E 300M MIL SPEC SINGLE MATERIAL RESPONSE OVERALL

•

PITCH DIAMETER: 0.5625 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

BORE NOMINAL DIAMETER	0.278 INCHES BOTH ENDS IN
TEETH QUANTITY	27
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-C-8837,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
BODY STYLE	PLAIN, SOLID
BORE STYLE	PLAIN BOTH ENDS
STYLE DESIGNATOR	HUBLESS
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-8848,CLASS 3,COND E 300M MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
PITCH DIAMETER	0.5625 INCHES NOMINAL IN
TOOTH FORM	SPECIAL
NOMINAL OUTSIDE DIAMETER	0.616 INCHES IN

SUBSTITUTES & CROSS-REFERENCES 2

10153940Reference document

Same NSN cross-reference

Reference document — Informative reference only

181885Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

Demilitarization required — critical (Q)

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FREQUENTLY ASKED QUESTIONS

What is 181885-1?

181885-1 is a GEAR,SPUR.

What parts can replace 181885-1?

There are 2 known substitutes for 181885-1: 10153940, 181885. Substitute compatibility should be verified for your specific system.

What is the NSN for 181885-1?

181885-1 is cataloged in the U.S. Government catalog under NSN 3020-01-128-1690. This indicates validated use in U.S. government and defense supply chains.

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181885-1 — GEAR,SPUR

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