PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40445Gear Assembly,antibacklash

Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems · NSN 6610-00-739-8474 · FSC 6610 · No Item Name Available
Verified by PartsTable
NSN 6610-00-739-8474 — this item is cataloged by the U.S. Government under National Stock Number 6610-00-739-8474. Primary manufacturer part number: 40445.
Features
  • Gear Assembly,antibacklash — FSC 6610
  • General Characteristics Item Description: TWO GEARS; ONE SPRING; ONE RING RETAINING
  • 1 verified cross-reference
  • Primary manufacturer: Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear Assembly,antibacklash, cataloged under National Stock Number 6610-00-739-8474, is classified within Federal Supply Class 6610 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6610-00-739-8474
Primary Part Number40445
Item NameGear Assembly,antibacklash
FSC / FSG6610 / 66 — No Item Name Available
ManufacturerUndersea Sensor Systems Inc Div Ultra Sonobuoy Systems
StatusACTIVE
General Characteristics Item DescriptionTWO GEARS; ONE SPRING; ONE RING RETAINING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5315-00-187-3288MS24692-132 INTERCHANGEABLE
Pin,tapered,plain
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5940-00-740-79334044-5 INTERCHANGEABLE
Terminal,lug
Brainin-Advance Industries, Llc
4820-01-117-5811N40445 INTERCHANGEABLE
Body,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
5950-01-137-22975024020308 INTERCHANGEABLE
Transformer,power
Riimic, Llc Dba Sunair Electronics
Cross-Reference Index
Part NumberManufacturer
40445 PRIMARY Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA)
Related Parts
5315-00-187-3288INTERCHANGEABLE
PIN,TAPERED,PLAIN
MS24692-132
5940-00-740-7933INTERCHANGEABLE
TERMINAL,LUG
4044-5
4820-01-117-5811INTERCHANGEABLE
BODY,VALVE
N40445
5950-01-137-2297INTERCHANGEABLE
TRANSFORMER,POWER
5024020308

Frequently Asked Questions

What is NSN 6610-00-739-8474?

NSN 6610-00-739-8474 is a Gear Assembly,antibacklash, manufactured by Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems, classified under FSC 6610 (No Item Name Available). Status: active.

What are the part numbers for NSN 6610-00-739-8474?

NSN 6610-00-739-8474 has 1 cross-referenced part number: 40445 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems).

What NSN replaces 6610-00-739-8474?

There are 4 known substitutes for 6610-00-739-8474: 5315-00-187-3288, 5940-00-740-7933, 4820-01-117-5811 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40445?

Key specifications for 40445: General Characteristics Item Description: TWO GEARS; ONE SPRING; ONE RING RETAINING; End Item Identification: DELTA AIRCRAFT MODEL F106. 2 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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