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2D3-978 ITEM 13 — GEAR,SPUR

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

2D3-978 ITEM 13: GEAR,SPUR.

The GEAR,SPUR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_style: W/ 2 KEYWAYS BOTH ENDS, tooth_form: STANDARD, teeth_quantity: 86, style_designator: PROTRUDING HUB, face_nominal_width: 2.000 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 3020-01-271-1977, 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
2D3-978 ITEM 13
NSN: 3020-01-271-1977
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 34712 — LAKE SHORE SYSTEMS, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_styleW/ 2 KEYWAYS BOTH ENDS
tooth_formSTANDARD
teeth_quantity86
style_designatorPROTRUDING HUB
face_nominal_width2.000 INCHES IN
hub_nominal_diameter8.875 INCHES FIRST END IN
hub_style_designatorPLAIN FIRST END
keyway_nominal_width1.250 INCHES BOTH ENDS IN
bore_nominal_diameter5.000 INCHES BOTH ENDS IN
nominal_outside_diameter35.200 INCHES IN
nominal_distance_from_bore_center_to_keyway_bottom3.125 INCHES BOTH ENDS IN
NSN3020-01-271-1977
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR,SPUR TITLE COMPONENT PN 2D3-978 ITEM 13 MFR GEAR,SPUR
KEY FEATURES
•
KEYWAY NOMINAL WIDTH: 1.250 INCHES BOTH ENDS IN
•
BORE NOMINAL DIAMETER: 5.000 INCHES BOTH ENDS IN
•
HUB NOMINAL DIAMETER: 8.875 INCHES FIRST END IN
•
TEETH QUANTITY: 86
•
BORE STYLE: W/ 2 KEYWAYS BOTH ENDS
•
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END: 2.000 INCHES FIRST END IN
•
STYLE DESIGNATOR: PROTRUDING HUB
•
TOOTH FORM: STANDARD
TECHNICAL CHARACTERISTICS
KEYWAY NOMINAL WIDTH1.250 INCHES BOTH ENDS IN
BORE NOMINAL DIAMETER5.000 INCHES BOTH ENDS IN
HUB NOMINAL DIAMETER8.875 INCHES FIRST END IN
TEETH QUANTITY86
BORE STYLEW/ 2 KEYWAYS BOTH ENDS
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END2.000 INCHES FIRST END IN
STYLE DESIGNATORPROTRUDING HUB
TOOTH FORMSTANDARD
HUB STYLE DESIGNATORPLAIN FIRST END
NOMINAL OUTSIDE DIAMETER35.200 INCHES 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.
3020-00-000-0091 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

No substitute or cross-reference records for this part.

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 2D3-978 ITEM 13?
2D3-978 ITEM 13 is a GEAR,SPUR.
What is the NSN for 2D3-978 ITEM 13?
2D3-978 ITEM 13 is cataloged in the U.S. Government catalog under NSN 3020-01-271-1977. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.