PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3378589Spider Assembly

Hatch & Kirk, Inc. · NSN 2815-00-446-5521 · FSC 2815 · No Item Name Available
Verified by PartsTable
NSN 2815-00-446-5521 — this item is cataloged by the U.S. Government under National Stock Number 2815-00-446-5521. Primary manufacturer part number: 3378589.
Features
  • Spider Assembly — FSC 2815
  • 3 verified cross-references
  • Primary manufacturer: Hatch & Kirk, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Spider Assembly, cataloged under National Stock Number 2815-00-446-5521, is classified within Federal Supply Class 2815 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Hatch & Kirk, Inc.. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSpider Assembly
FSC / FSG2815 — No Item Name Available (FSG 28)
ManufacturersGeneral Motors Corp Electro-Motive Div (CAGE 72915); Hatch & Kirk, Inc. (CAGE 55380); Eaton Corporation Dba Airflex Div Div Airflex (CAGE 99185)
Technical Specifications
ParameterValue
NSN2815-00-446-5521
Primary Part Number3378589
Item NameSpider Assembly
FSC / FSG2815 / 28 — No Item Name Available
ManufacturerHatch & Kirk, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
3110-00-100-0294 INTERCHANGEABLE
Cup,tapered Roller Bearing
2990-00-163-081808273M INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
3110-00-198-142210568 INTERCHANGEABLE
Bearing,ball,annular
Itw Food Equipment Group Llc Dba Hobart Service
5331-00-288-2371 INTERCHANGEABLE
O-Ring
5307-00-331-971082-73 INTERCHANGEABLE
Stud,stepped
Marshall Excelsior Co
5120-00-555-2035GZ-8273 INTERCHANGEABLE
Alignment Tool,electronic Equipm
Gc/waldom Inc
4720-00-737-233349567H INTERCHANGEABLE
Hose Assembly,nonmetallic
Navistar Intl Corp Truck Br Ohio Plant
4820-01-118-6794 INTERCHANGEABLE
Valve,gate
5950-01-338-35748273 INTERCHANGEABLE
Coil,radio Frequency
Gowanda Holdings, Llc Div Gowanda Electronics Corp.
6650-01-621-9695 INTERCHANGEABLE
Telescope,straight
Cross-Reference Index
Part NumberManufacturer
3378589 General Motors Corp Electro-Motive Div (USA)
3378589 PRIMARY Hatch & Kirk, Inc. (USA)
8273 Eaton Corporation Dba Airflex Div Div Airflex (USA)
Related Parts
3110-00-100-0294INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
2990-00-163-0818INTERCHANGEABLE
MUFFLER,EXHAUST
08273M
3110-00-198-1422INTERCHANGEABLE
BEARING,BALL,ANNULAR
10568
5331-00-288-2371INTERCHANGEABLE
O-RING
5307-00-331-9710INTERCHANGEABLE
STUD,STEPPED
82-73
5120-00-555-2035INTERCHANGEABLE
ALIGNMENT TOOL,ELECTRONIC EQUIPM
GZ-8273
4720-00-737-2333INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
49567H
4820-01-118-6794INTERCHANGEABLE
VALVE,GATE
5950-01-338-3574INTERCHANGEABLE
COIL,RADIO FREQUENCY
8273
6650-01-621-9695INTERCHANGEABLE
TELESCOPE,STRAIGHT
6145-01-707-1525INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
8273

Frequently Asked Questions

What is NSN 2815-00-446-5521?

NSN 2815-00-446-5521 is a Spider Assembly, manufactured by Hatch & Kirk, Inc., classified under FSC 2815 (No Item Name Available). Status: active.

What are the part numbers for NSN 2815-00-446-5521?

NSN 2815-00-446-5521 has 3 cross-referenced part numbers: 3378589 (General Motors Corp Electro-Motive Div), 3378589 (Hatch & Kirk, Inc.), 8273 (Eaton Corporation Dba Airflex Div Div Airflex).

What NSN replaces 2815-00-446-5521?

There are 11 known substitutes for 2815-00-446-5521: 3110-00-100-0294, 2990-00-163-0818, 3110-00-198-1422 and 8 more. Verify interchangeability with system specifications before substitution.

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