PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MP121-1Gear Assembly,speed Decreaser

Raytheon Technical Services Company · NSN 3010-00-413-4575 · FSC 3010 · No Item Name Available
Verified by PartsTable
NSN 3010-00-413-4575 — this item is cataloged by the U.S. Government under National Stock Number 3010-00-413-4575. Primary manufacturer part number: MP121-1.
Features
  • Gear Assembly,speed Decreaser — FSC 3010
  • Design Type: SINGLE REDUCTION
  • Output Shaft Type: STRAIGHT
  • Shaft Position: OUTPUT SHAFT EXTENDS TO LEFT
  • Output Shaft Quantity: 1
  • Lubrication System: SPLASH
  • Total Ratio: 40.190 TO 1
  • 4 verified cross-references
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear Assembly,speed Decreaser, cataloged under National Stock Number 3010-00-413-4575, is classified within Federal Supply Class 3010 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Raytheon Technical Services Company. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3010-00-413-4575
Primary Part NumberMP121-1
Item NameGear Assembly,speed Decreaser
FSC / FSG3010 / 30 — No Item Name Available
ManufacturerRaytheon Technical Services Company
StatusCANCELLED
Design TypeSINGLE REDUCTION
Output Shaft TypeSTRAIGHT
Shaft PositionOUTPUT SHAFT EXTENDS TO LEFT
Output Shaft Quantity1
Lubrication SystemSPLASH
Total Ratio40.190 TO 1
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
1660-00-215-067514432 INTERCHANGEABLE
Plate,diaphragm Support
Honeywell International, Inc Div Aerospace-Tucson
4910-00-255-866514432 INTERCHANGEABLE
Pilot,valve Seat Refacing
Black and Decker Us Inc
6510-00-766-1104 INTERCHANGEABLE
Gauze,petrolatum
1630-00-975-018214432 INTERCHANGEABLE
Poppet,brake Cylinder
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
4210-01-034-2069 INTERCHANGEABLE
Tank and Pump Unit,self Containe
4330-01-111-1400 INTERCHANGEABLE
Follower,gland
5340-01-140-0504 INTERCHANGEABLE
Clamp,loop
4330-01-151-8065 INTERCHANGEABLE
Filter,fluid
5950-01-291-770414432 INTERCHANGEABLE
Reactor
Magnespec Inc
5305-01-362-093740176FINDN02A INTERCHANGEABLE
Screw,machine
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
MP121-1 Raytheon Technical Services Company (USA)
1355-40-19 Waltham Clock Co Inc Feedback Controls Div (USA)
14432 Waltham Clock Co Inc Feedback Controls Div (USA)
MP121-1 Cae Usa Inc. (USA)
Related Parts
1660-00-215-0675INTERCHANGEABLE
PLATE,DIAPHRAGM SUPPORT
14432
4910-00-255-8665INTERCHANGEABLE
PILOT,VALVE SEAT REFACING
14432
6510-00-766-1104INTERCHANGEABLE
GAUZE,PETROLATUM
1630-00-975-0182INTERCHANGEABLE
POPPET,BRAKE CYLINDER
14432
4210-01-034-2069INTERCHANGEABLE
TANK AND PUMP UNIT,SELF CONTAINE
4330-01-111-1400INTERCHANGEABLE
FOLLOWER,GLAND
5340-01-140-0504INTERCHANGEABLE
CLAMP,LOOP
4330-01-151-8065INTERCHANGEABLE
FILTER,FLUID
5950-01-291-7704INTERCHANGEABLE
REACTOR
14432
5305-01-362-0937INTERCHANGEABLE
SCREW,MACHINE
40176FINDN02A
6515-01-364-8579INTERCHANGEABLE
HEEL CUP,ORTHOPEDIC
0814-0428
6650-01-390-1674INTERCHANGEABLE
RETAINER,OPTICAL ELEMENT
14432

Frequently Asked Questions

What is NSN 3010-00-413-4575?

NSN 3010-00-413-4575 is a Gear Assembly,speed Decreaser, manufactured by Raytheon Technical Services Company, classified under FSC 3010 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3010-00-413-4575?

NSN 3010-00-413-4575 has 4 cross-referenced part numbers: MP121-1 (Raytheon Technical Services Company), 1355-40-19 (Waltham Clock Co Inc Feedback Controls Div), 14432 (Waltham Clock Co Inc Feedback Controls Div), MP121-1 (Cae Usa Inc.).

What NSN replaces 3010-00-413-4575?

There are 12 known substitutes for 3010-00-413-4575: 1660-00-215-0675, 4910-00-255-8665, 6510-00-766-1104 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MP121-1?

Key specifications for MP121-1: Design Type: SINGLE REDUCTION; Output Shaft Type: STRAIGHT; Shaft Position: OUTPUT SHAFT EXTENDS TO LEFT; Output Shaft Quantity: 1. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3010-00-413-4575 still in active supply?

NSN 3010-00-413-4575 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com