PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

65A81D953Housing,gearbox

Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier · NSN 2520-00-309-3914 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-00-309-3914 — this item is cataloged by the U.S. Government under National Stock Number 2520-00-309-3914. Primary manufacturer part number: 65A81D953.
Features
  • Housing,gearbox — FSC 2520
  • General Characteristics Item Description: DUCTILE IRON
  • 4 verified cross-references
  • Primary manufacturer: Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Housing,gearbox, cataloged under National Stock Number 2520-00-309-3914, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2520-00-309-3914
Primary Part Number65A81D953
Item NameHousing,gearbox
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerNaval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
StatusACTIVE
General Characteristics Item DescriptionDUCTILE IRON
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3040-00-270-80514500-239 INTERCHANGEABLE
Connecting Link,rigid
Tyee Aircraft Inc Div Tyee Aircraft
5331-00-290-94861-1345-4-6 INTERCHANGEABLE
O-Ring
The Boeing Company Div Defense
5841-00-518-678940301 INTERCHANGEABLE
Plate,chassis
Frontgrade Technologies Inc.
1680-00-887-19204030-1 INTERCHANGEABLE
Actuator,electromechanical,rotar
Aerocontrolex Group, Inc. Div Talley Actuators
5950-00-984-8722 INTERCHANGEABLE
Transformer,power
5305-01-173-3514SM-D-766931-11 INTERCHANGEABLE
Screw,machine
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
2805-01-238-0927 INTERCHANGEABLE
Engine,gasoline
6520-01-309-353140304 INTERCHANGEABLE
Bur,dental,engine Test
Bell Intl Inc
3020-01-327-600740301-01 INTERCHANGEABLE
Gear,spur
Aps Systems, Inc Dba Eidal International Corp
Cross-Reference Index
Part NumberManufacturer
02261-0280-01 Asrc Federal Facilities Logistics, Llc (USA)
65A81D953 PRIMARY Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
02261-0280-01 Harsco Corp Bmy-Combat Systems Div (USA)
40301 Western Mfg Co (USA)
Related Parts
3040-00-270-8051INTERCHANGEABLE
CONNECTING LINK,RIGID
4500-239
5331-00-290-9486INTERCHANGEABLE
O-RING
1-1345-4-6
5841-00-518-6789INTERCHANGEABLE
PLATE,CHASSIS
40301
1680-00-887-1920INTERCHANGEABLE
ACTUATOR,ELECTROMECHANICAL,ROTAR
4030-1
5950-00-984-8722INTERCHANGEABLE
TRANSFORMER,POWER
5305-01-173-3514INTERCHANGEABLE
SCREW,MACHINE
SM-D-766931-11
2805-01-238-0927INTERCHANGEABLE
ENGINE,GASOLINE
6520-01-309-3531INTERCHANGEABLE
BUR,DENTAL,ENGINE TEST
40304
3020-01-327-6007INTERCHANGEABLE
GEAR,SPUR
40301-01

Frequently Asked Questions

What is NSN 2520-00-309-3914?

NSN 2520-00-309-3914 is a Housing,gearbox, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 2520 (No Item Name Available). Status: active.

What are the part numbers for NSN 2520-00-309-3914?

NSN 2520-00-309-3914 has 4 cross-referenced part numbers: 02261-0280-01 (Asrc Federal Facilities Logistics, Llc), 65A81D953 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 02261-0280-01 (Harsco Corp Bmy-Combat Systems Div), 40301 (Western Mfg Co).

What NSN replaces 2520-00-309-3914?

There are 9 known substitutes for 2520-00-309-3914: 3040-00-270-8051, 5331-00-290-9486, 5841-00-518-6789 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 65A81D953?

Key specifications for 65A81D953: General Characteristics Item Description: DUCTILE IRON. 1 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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