PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D12Bus,motor

Thomas Built Buses, Inc. Dba Thomas Built Buses Inc · NSN 2310-01-503-4378 · FSC 2310 · No Item Name Available
Verified by PartsTable
NSN 2310-01-503-4378 — this item is cataloged by the U.S. Government under National Stock Number 2310-01-503-4378. Primary manufacturer part number: D12.
Features
  • Bus,motor — FSC 2310
  • Seating Capacity: 44
  • Rear Wheel Mounting Type: DUAL
  • Nominal Wheelbase: 174.00 INCHES IN
  • Passenger Door Operation Method: POWER
  • Passenger Door Type: DOUBLE FRONT
  • Brake Actuation Method: AIR
  • Prime Mover Type: DIESEL ENGINE
Applications
  • Mechanical power generation
  • Drive system operation
  • Auxiliary equipment operation
General Description

The Bus,motor, cataloged under National Stock Number 2310-01-503-4378, is classified within Federal Supply Class 2310 (No Item Name Available) of the Ground Effect Vehicles, Motor Vehicles, Trailers group. The primary manufacturer of record is Thomas Built Buses, Inc. Dba Thomas Built Buses Inc. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2310-01-503-4378
Primary Part NumberD12
Item NameBus,motor
FSC / FSG2310 / 23 — No Item Name Available
ManufacturerThomas Built Buses, Inc. Dba Thomas Built Buses Inc
StatusACTIVE
Seating Capacity44
Rear Wheel Mounting TypeDUAL
Nominal Wheelbase174.00 INCHES IN
Passenger Door Operation MethodPOWER
Passenger Door TypeDOUBLE FRONT
Brake Actuation MethodAIR
Prime Mover TypeDIESEL ENGINE
Engine Inclosure TypeVEHICLE BODY
Door ConstructionLEAF
Passenger Door Quantity1
Engine Brake Horsepower190.0
Battery Voltage Rating in Volts12.0
Axle Speed Quantity1
Forward Speed Range Quantity5
Forward Speed Quantity Per Range1
Emergency Door Quantity1
Battery Quantity3
Vehicle Maximum Gross Weight31000.00 POUNDS LBS
Cylinder Quantity6
Transmission TypeAUTOMATIC
Body MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
6110-00-014-238410040117 INTERCHANGEABLE
Electronic Subassem
Us Army Aviation and Missile Command
4820-00-288-75473 INTERCHANGEABLE
Cock,drain
Lincoln Brass Works Inc
6625-00-432-3197D12 INTERCHANGEABLE
Detector,radio Frequency
Frequency Electronics Inc
5930-00-475-53729018139 INTERCHANGEABLE
Key,switch
Us Army Aviation and Missile Command
4320-00-604-3634D12 INTERCHANGEABLE
Impeller,pump,centrifugal
Itt Jabsco Products
5310-00-763-8921 INTERCHANGEABLE
Nut,plain,hexagon
3010-00-826-8527D1-2 INTERCHANGEABLE
Coupling,shaft,rigid
Roller Bearing Co of America, Inc Div Pic Design
6520-01-156-3152201710 INTERCHANGEABLE
Bur,dental,finishing
Mycone Dental Supply Co. Inc. Dba National Keystone Products
4320-01-328-7082 INTERCHANGEABLE
Pump Unit,rotary
2010-01-462-0205D-1/2 INTERCHANGEABLE
Cap,fairwater
Magellan Aerospace, Middletown, Inc
Cross-Reference Index
Part NumberManufacturer
D12 PRIMARY Thomas Built Buses, Inc. Dba Thomas Built Buses Inc (USA)
Related Parts
6110-00-014-2384INTERCHANGEABLE
ELECTRONIC SUBASSEM
10040117
4820-00-288-7547INTERCHANGEABLE
COCK,DRAIN
3
6625-00-432-3197INTERCHANGEABLE
DETECTOR,RADIO FREQUENCY
D12
5930-00-475-5372INTERCHANGEABLE
KEY,SWITCH
9018139
4320-00-604-3634INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
D12
5310-00-763-8921INTERCHANGEABLE
NUT,PLAIN,HEXAGON
3010-00-826-8527INTERCHANGEABLE
COUPLING,SHAFT,RIGID
D1-2
6520-01-156-3152INTERCHANGEABLE
BUR,DENTAL,FINISHING
201710
4320-01-328-7082INTERCHANGEABLE
PUMP UNIT,ROTARY
2010-01-462-0205INTERCHANGEABLE
CAP,FAIRWATER
D-1/2
5340-01-721-9204INTERCHANGEABLE
BRACKET,MOUNTING
D-12

Frequently Asked Questions

What is NSN 2310-01-503-4378?

NSN 2310-01-503-4378 is a Bus,motor, manufactured by Thomas Built Buses, Inc. Dba Thomas Built Buses Inc, classified under FSC 2310 (No Item Name Available). Status: active.

What are the part numbers for NSN 2310-01-503-4378?

NSN 2310-01-503-4378 has 1 cross-referenced part number: D12 (Thomas Built Buses, Inc. Dba Thomas Built Buses Inc).

What NSN replaces 2310-01-503-4378?

There are 11 known substitutes for 2310-01-503-4378: 6110-00-014-2384, 4820-00-288-7547, 6625-00-432-3197 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of D12?

Key specifications for D12: Seating Capacity: 44; Rear Wheel Mounting Type: DUAL; Nominal Wheelbase: 174.00 INCHES IN; Passenger Door Operation Method: POWER. 22 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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