PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

65A81D951Housing,gearbox

Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier · NSN 2520-00-310-2035 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-00-310-2035 — this item is cataloged by the U.S. Government under National Stock Number 2520-00-310-2035. Primary manufacturer part number: 65A81D951.
Features
  • Housing,gearbox — FSC 2520
  • General Characteristics Item Description: DUCTILE IRON
  • FSC Application Data: GEARBOX ASSEMBLY,VEHICULAR POWER TRANSMISSION
  • 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 2520-00-310-2035, 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 2 verified specifications, 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2520-00-310-2035
Primary Part Number65A81D951
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
FSC Application DataGEARBOX ASSEMBLY,VEHICULAR POWER TRANSMISSION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5999-00-035-789840-302 INTERCHANGEABLE
Contact,electrical
Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
5130-00-286-5542403 INTERCHANGEABLE
Brush,fiber,rotary Wheel
Dremel Services Center
5330-00-346-008311145-36 INTERCHANGEABLE
Seal Ring,metal
Cummins Inc.
5950-00-411-0621328717-1 INTERCHANGEABLE
Transformer,power
Raytheon Company
6625-00-538-9005SC-C-99664 INTERCHANGEABLE
Galvanometer
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6105-00-705-522240302 INTERCHANGEABLE
Plate and Pin Assy
Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc
4130-00-714-3510 INTERCHANGEABLE
Compressor Unit,refrigeration
4130-00-872-4930 INTERCHANGEABLE
Compressor Unit,refrigeration
9905-00-961-80824030-2 INTERCHANGEABLE
Plate,identification
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
1660-00-966-650640-302 INTERCHANGEABLE
Segment Assembly
Industrial Design Laboratories Inc
Cross-Reference Index
Part NumberManufacturer
02261-0280-04 Harsco Corp Bmy-Combat Systems Div (USA)
02261-0280-04 Asrc Federal Facilities Logistics, Llc (USA)
65A81D951 PRIMARY Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
40302 Western Mfg Co (USA)
Related Parts
5999-00-035-7898INTERCHANGEABLE
CONTACT,ELECTRICAL
40-302
5130-00-286-5542INTERCHANGEABLE
BRUSH,FIBER,ROTARY WHEEL
403
5330-00-346-0083INTERCHANGEABLE
SEAL RING,METAL
11145-36
5950-00-411-0621INTERCHANGEABLE
TRANSFORMER,POWER
328717-1
6625-00-538-9005INTERCHANGEABLE
GALVANOMETER
SC-C-99664
6105-00-705-5222INTERCHANGEABLE
PLATE AND PIN ASSY
40302
4130-00-714-3510INTERCHANGEABLE
COMPRESSOR UNIT,REFRIGERATION
4130-00-872-4930INTERCHANGEABLE
COMPRESSOR UNIT,REFRIGERATION
9905-00-961-8082INTERCHANGEABLE
PLATE,IDENTIFICATION
4030-2
1660-00-966-6506INTERCHANGEABLE
SEGMENT ASSEMBLY
40-302
4310-00-967-9816INTERCHANGEABLE
COMPRESSOR,RECIPROCATING
5340-01-043-3086INTERCHANGEABLE
HANDLE,DOOR
40302

Frequently Asked Questions

What is NSN 2520-00-310-2035?

NSN 2520-00-310-2035 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 2520-00-310-2035?

NSN 2520-00-310-2035 has 4 cross-referenced part numbers: 02261-0280-04 (Harsco Corp Bmy-Combat Systems Div), 02261-0280-04 (Asrc Federal Facilities Logistics, Llc), 65A81D951 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 40302 (Western Mfg Co).

What NSN replaces 2520-00-310-2035?

There are 12 known substitutes for 2520-00-310-2035: 5999-00-035-7898, 5130-00-286-5542, 5330-00-346-0083 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 65A81D951?

Key specifications for 65A81D951: General Characteristics Item Description: DUCTILE IRON; FSC Application Data: GEARBOX ASSEMBLY,VEHICULAR POWER TRANSMISSION. 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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