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TP78973 — GEAR,HELICAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

TP78973: GEAR,HELICAL.

The GEAR,HELICAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_style: PLAIN, SOLID, teeth_type: SINGLE HELIX, tooth_form: STANDARD, helix_angle: 48.0000 DEGREES, pitch_diameter: 0.5000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-253-8513, 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
TP78973
NSN: 3020-00-253-8513
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_stylePLAIN, SOLID
teeth_typeSINGLE HELIX
tooth_formSTANDARD
helix_angle48.0000 DEGREES
pitch_diameter0.5000 INCHES NOMINAL IN
pressure_angle14.5000 DEGREES
teeth_quantity12
tooth_directionRIGHT
style_designatorHUBLESS
face_nominal_width0.375 INCHES IN
bore_nominal_diameter0.2500 INCHES BOTH ENDS IN
NSN3020-00-253-8513
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR,HELICAL TITLE COMPONENT PN TP78973 MFR GEAR,HELICAL
KEY FEATURES
•
BORE NOMINAL DIAMETER: 0.2500 INCHES BOTH ENDS IN
•
HELIX ANGLE: 48.0000 DEGREES
•
TEETH QUANTITY: 12
•
BODY STYLE: PLAIN, SOLID
•
TOOTH DIRECTION: RIGHT
•
TEETH TYPE: SINGLE HELIX
•
STYLE DESIGNATOR: HUBLESS
•
PITCH DIAMETER: 0.5000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
BORE NOMINAL DIAMETER0.2500 INCHES BOTH ENDS IN
HELIX ANGLE48.0000 DEGREES
TEETH QUANTITY12
BODY STYLEPLAIN, SOLID
TOOTH DIRECTIONRIGHT
TEETH TYPESINGLE HELIX
STYLE DESIGNATORHUBLESS
PITCH DIAMETER0.5000 INCHES NOMINAL IN
TOOTH FORMSTANDARD
NOMINAL OUTSIDE DIAMETER0.5590 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is TP78973?
TP78973 is a GEAR,HELICAL.
What is the NSN for TP78973?
TP78973 is cataloged in the U.S. Government catalog under NSN 3020-00-253-8513. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
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.