PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SG813-AC-MM0-010 F1G 7-18Reduction Gear Asse

Naval Sea Systems Command · NSN 3950-01-225-9821 · FSC 3950 · No Item Name Available
Verified by PartsTable
NSN 3950-01-225-9821 — this item is cataloged by the U.S. Government under National Stock Number 3950-01-225-9821. Primary manufacturer part number: SG813-AC-MM0-010 F1G 7-18.
Features
  • Reduction Gear Asse — FSC 3950
  • 2 verified cross-references
  • Primary manufacturer: Naval Sea Systems Command
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Reduction Gear Asse, cataloged under National Stock Number 3950-01-225-9821, is classified within Federal Supply Class 3950 (No Item Name Available) of the Materials Handling Equipment group. The primary manufacturer of record is Naval Sea Systems Command. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameReduction Gear Asse
FSC / FSG3950 — No Item Name Available (FSG 39)
ManufacturersNaval Sea Systems Command (CAGE 53711); Calgon Carbon Uv Technologies Llc Dba Hyde Marine (CAGE 29899)
Technical Specifications
ParameterValue
NSN3950-01-225-9821
Primary Part NumberSG813-AC-MM0-010 F1G 7-18
Item NameReduction Gear Asse
FSC / FSG3950 / 39 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5945-00-621-007326462 INTERCHANGEABLE
Solenoid,electrical
Woodward Hrt Inc
1650-00-703-8722LH1700 INTERCHANGEABLE
Valve,directional F
Lourdes Industries, Inc.
5330-01-033-3155 INTERCHANGEABLE
Seal,plain
5330-01-362-0729 INTERCHANGEABLE
Seal,plain
5305-01-425-345726462 INTERCHANGEABLE
Screw,cap,socket Head
Jetstream of Houston, Llp Dba Jetstream of Houston Llp
8465-01-582-796726462 INTERCHANGEABLE
Bag,weapon Equipment,carrier
Charles Reed Knight Jr Dba Knight's Armament Company
Cross-Reference Index
Part NumberManufacturer
SG813-AC-MM0-010 F1G 7-18 Naval Sea Systems Command (USA)
26462 Calgon Carbon Uv Technologies Llc Dba Hyde Marine (USA)
Related Parts
5945-00-621-0073INTERCHANGEABLE
SOLENOID,ELECTRICAL
26462
1650-00-703-8722INTERCHANGEABLE
VALVE,DIRECTIONAL F
LH1700
5330-01-033-3155INTERCHANGEABLE
SEAL,PLAIN
5330-01-362-0729INTERCHANGEABLE
SEAL,PLAIN
5305-01-425-3457INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
26462
8465-01-582-7967INTERCHANGEABLE
BAG,WEAPON EQUIPMENT,CARRIER
26462

Frequently Asked Questions

What is NSN 3950-01-225-9821?

NSN 3950-01-225-9821 is a Reduction Gear Asse, manufactured by Naval Sea Systems Command, classified under FSC 3950 (No Item Name Available). Status: active.

What are the part numbers for NSN 3950-01-225-9821?

NSN 3950-01-225-9821 has 2 cross-referenced part numbers: SG813-AC-MM0-010 F1G 7-18 (Naval Sea Systems Command), 26462 (Calgon Carbon Uv Technologies Llc Dba Hyde Marine).

What NSN replaces 3950-01-225-9821?

There are 6 known substitutes for 3950-01-225-9821: 5945-00-621-0073, 1650-00-703-8722, 5330-01-033-3155 and 3 more. Verify interchangeability with system specifications before substitution.

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