PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

DD445S6505-18ALT1PC32Gear,worm

Naval Ship Systems Command · NSN 3020-00-289-7625 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-289-7625 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-289-7625. Primary manufacturer part number: DD445S6505-18ALT1PC32.
Features
  • Gear,worm — FSC 3020
  • Nominal Overall Length: 0.719 INCHES IN
  • Thread Form Quantity: 4
  • Face Nominal Width: 0.562 INCHES IN
  • Pressure Angle: 14.5000 DEGREES
  • Pitch Diameter: 0.3310 INCHES MINIMUM AND 0.3330 INCHES MAXIMUM IN
  • Thread Form Direction: RIGHT-HAND
  • Nominal Outside Diameter: 0.375 INCHES IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Gear,worm, cataloged under National Stock Number 3020-00-289-7625, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-289-7625
Primary Part NumberDD445S6505-18ALT1PC32
Item NameGear,worm
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
Nominal Overall Length0.719 INCHES IN
Thread Form Quantity4
Face Nominal Width0.562 INCHES IN
Pressure Angle14.5000 DEGREES
Pitch Diameter0.3310 INCHES MINIMUM AND 0.3330 INCHES MAXIMUM IN
Thread Form DirectionRIGHT-HAND
Nominal Outside Diameter0.375 INCHES IN
Bore Nominal Diameter0.188 INCHES BOTH ENDS IN
MaterialSTEEL CORROSION RESISTING OVERALL
Hub Nominal Diameter0.260 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6240-00-155-7900 INTERCHANGEABLE
Lamp,incandescent
Cross-Reference Index
Part NumberManufacturer
DD445S6505-18ALT1PC32 PRIMARY Naval Ship Systems Command (USA)
S6505-552214PC34 PRIMARY Naval Ship Systems Command (USA)
DD445S6505-95PC32 PRIMARY Naval Ship Systems Command (USA)
EF28S6505-475166PC34 PRIMARY Naval Ship Systems Command (USA)
S6505-605245PC32 PRIMARY Naval Ship Systems Command (USA)
S6505-588474PC34 PRIMARY Naval Ship Systems Command (USA)
DD357S6505-465972PC34 PRIMARY Naval Ship Systems Command (USA)
DD364S65-1031PC32 PRIMARY Naval Ship Systems Command (USA)
S6505-449525PC34 PRIMARY Naval Ship Systems Command (USA)
S6505-11895PC34 PRIMARY Naval Ship Systems Command (USA)
DD445S6505-212ALT1PC32 PRIMARY Naval Ship Systems Command (USA)
12-5BPC34 PRIMARY The Dewey Electronics Corporation Div Pitometer Log Division (USA)
12-1HPC32 PRIMARY The Dewey Electronics Corporation Div Pitometer Log Division (USA)
S6505-322046PC34 PRIMARY Naval Ship Systems Command (USA)
S6505-698804PC34 PRIMARY Naval Ship Systems Command (USA)
CVB41S6505-518704PC29 PRIMARY Naval Ship Systems Command (USA)
36BB1938LPC32 PRIMARY Naval Ship Systems Command (USA)
DD482S6505-18ALT1PC32 PRIMARY Naval Ship Systems Command (USA)
11-2EPC32 PRIMARY The Dewey Electronics Corporation Div Pitometer Log Division (USA)
12-3GPC34 PRIMARY The Dewey Electronics Corporation Div Pitometer Log Division (USA)
Related Parts
6240-00-155-7900INTERCHANGEABLE
LAMP,INCANDESCENT

Frequently Asked Questions

What is NSN 3020-00-289-7625?

NSN 3020-00-289-7625 is a Gear,worm, manufactured by Naval Ship Systems Command, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-289-7625?

NSN 3020-00-289-7625 has 50 cross-referenced part numbers: DD445S6505-18ALT1PC32 (Naval Ship Systems Command), S6505-552214PC34 (Naval Ship Systems Command), DD445S6505-95PC32 (Naval Ship Systems Command), EF28S6505-475166PC34 (Naval Ship Systems Command), S6505-605245PC32 (Naval Ship Systems Command) and 45 more.

What NSN replaces 3020-00-289-7625?

There is 1 known substitute for 3020-00-289-7625: 6240-00-155-7900. Verify interchangeability with system specifications before substitution.

What are the specifications of DD445S6505-18ALT1PC32?

Key specifications for DD445S6505-18ALT1PC32: Nominal Overall Length: 0.719 INCHES IN; Thread Form Quantity: 4; Face Nominal Width: 0.562 INCHES IN; Pressure Angle: 14.5000 DEGREES. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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