PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18023Shaft,axle,automotive

Dana Corp Spicer Transmission Div · NSN 2520-00-737-4986 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-00-737-4986 — this item is cataloged by the U.S. Government under National Stock Number 2520-00-737-4986. Primary manufacturer part number: 18023.
Features
  • Shaft,axle,automotive — FSC 2520
  • First End Bearing Seat: NOT INCLUDED
  • Second End Bearing Seat: NOT INCLUDED
  • Second End Spline Minor Diameter: 1.039 INCHES MINIMUM AND 1.049 INCHES MAXIMUM IN
  • First End Thread Size: 1-14
  • Second End Spline Major Diameter: 1.222 INCHES MINIMUM AND 1.227 INCHES MAXIMUM IN
  • Material: STEEL COMP 1033
  • Material Document and Classification: SAE 1033 ASSN STD SINGLE MATERIAL RESPONSE
Applications
  • Applications requiring Steel Comp 1033 construction
General Description

The Shaft,axle,automotive, cataloged under National Stock Number 2520-00-737-4986, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Dana Corp Spicer Transmission Div. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2520-00-737-4986
Primary Part Number18023
Item NameShaft,axle,automotive
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerDana Corp Spicer Transmission Div
StatusCANCELLED
First End Bearing SeatNOT INCLUDED
Second End Bearing SeatNOT INCLUDED
Second End Spline Minor Diameter1.039 INCHES MINIMUM AND 1.049 INCHES MAXIMUM IN
First End Thread Size1-14
Second End Spline Major Diameter1.222 INCHES MINIMUM AND 1.227 INCHES MAXIMUM IN
MaterialSTEEL COMP 1033
Material Document and ClassificationSAE 1033 ASSN STD SINGLE MATERIAL RESPONSE
First End TypeTAPERED
First End Thread DirectionRIGHT-HAND
Metallic Hardness Rating42.0 MINIMUM ROCKWELL C AND 48.0 MAXIMUM ROCKWELL C
Second End Spline Quantity10
First End Keyway Width0.2485 INCHES MINIMUM AND 0.2505 INCHES MAXIMUM IN
First End Taper1.000 INCHES NOMINAL PER FOOT IN
Second End TypeSPLINED
First End Taper Major Diameter1.377 INCHES NOMINAL IN
First End Pin Hole Diameter0.172 INCHES NOMINAL IN
First End Thread SeriesUNF
First End Keyway Depth0.127 INCHES MINIMUM AND 0.137 INCHES MAXIMUM IN
Second End Spline TypeSTRAIGHT
Second End Spline Length1.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6625-00-186-2942 INTERCHANGEABLE
Oscilloscope Subassembly
5133-00-189-9268 INTERCHANGEABLE
Drill,twist
3455-00-248-9972 INTERCHANGEABLE
Cutter,milling,involute Gear
2805-00-326-079418023 INTERCHANGEABLE
Duct,generator Cool
Triumph Thermal Systems - Maryland, Inc.
5950-00-553-5072BE03499-001 INTERCHANGEABLE
Transformer,power
Autodyne Manufacturing Co Inc
5961-00-688-6313 INTERCHANGEABLE
Transistor
4330-00-860-0835 INTERCHANGEABLE
Filtering Disk,fluid
1430-00-938-441518023 INTERCHANGEABLE
Housing,shade Handl
Gyrus Acmi L.p. Dba Circon-Acmi Div
9390-01-225-03927100120554 INTERCHANGEABLE
Sheeting,luminous
3m Company
5331-01-436-6138701914 INTERCHANGEABLE
O-Ring
Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
Cross-Reference Index
Part NumberManufacturer
18023 PRIMARY Dana Corp Spicer Transmission Div (USA)
DSG-1138 Napco Intl Inc (USA)
640969 Am General Llc (USA)
18023 Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products (USA)
7374986 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Related Parts
6625-00-186-2942INTERCHANGEABLE
OSCILLOSCOPE SUBASSEMBLY
5133-00-189-9268INTERCHANGEABLE
DRILL,TWIST
3455-00-248-9972INTERCHANGEABLE
CUTTER,MILLING,INVOLUTE GEAR
2805-00-326-0794INTERCHANGEABLE
DUCT,GENERATOR COOL
18023
5950-00-553-5072INTERCHANGEABLE
TRANSFORMER,POWER
BE03499-001
5961-00-688-6313INTERCHANGEABLE
TRANSISTOR
4330-00-860-0835INTERCHANGEABLE
FILTERING DISK,FLUID
1430-00-938-4415INTERCHANGEABLE
HOUSING,SHADE HANDL
18023
9390-01-225-0392INTERCHANGEABLE
SHEETING,LUMINOUS
7100120554
5331-01-436-6138INTERCHANGEABLE
O-RING
701914
6240-01-475-5400INTERCHANGEABLE
LAMP,FLUORESCENT
48923
2530-01-483-5662INTERCHANGEABLE
RIM,INNER HALF AND
18023

Frequently Asked Questions

What is NSN 2520-00-737-4986?

NSN 2520-00-737-4986 is a Shaft,axle,automotive, manufactured by Dana Corp Spicer Transmission Div, classified under FSC 2520 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2520-00-737-4986?

NSN 2520-00-737-4986 has 5 cross-referenced part numbers: 18023 (Dana Corp Spicer Transmission Div), DSG-1138 (Napco Intl Inc), 640969 (Am General Llc), 18023 (Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products), 7374986 (U S Army Tank Automotive Command Amsta-Im-Mm).

What NSN replaces 2520-00-737-4986?

There are 12 known substitutes for 2520-00-737-4986: 6625-00-186-2942, 5133-00-189-9268, 3455-00-248-9972 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18023?

Key specifications for 18023: First End Bearing Seat: NOT INCLUDED; Second End Bearing Seat: NOT INCLUDED; Second End Spline Minor Diameter: 1.039 INCHES MINIMUM AND 1.049 INCHES MAXIMUM IN; First End Thread Size: 1-14. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2520-00-737-4986 still in active supply?

NSN 2520-00-737-4986 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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