PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A2-18Shaft,straight

Roller Bearing Co of America, Inc Div Pic Design · NSN 3040-00-891-9637 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-891-9637 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-891-9637. Primary manufacturer part number: A2-18.
Features
  • Shaft,straight — FSC 3040
  • Material: STEEL CORROSION RESISTING
  • End Similarity: NOT IDENTICAL
  • Second End Groove Width: 0.0170 INCHES NOMINAL IN
  • Second End Distance From End to Groove: 0.483 INCHES NOMINAL IN
  • Second End Diameter: 0.1870 INCHES NOMINAL IN
  • FSC Application Data: INDICATOR,THRUST
  • First End Diameter: 0.1870 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Shaft,straight, cataloged under National Stock Number 3040-00-891-9637, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Roller Bearing Co of America, Inc Div Pic Design. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 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
NSN3040-00-891-9637
Primary Part NumberA2-18
Item NameShaft,straight
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerRoller Bearing Co of America, Inc Div Pic Design
StatusCANCELLED
MaterialSTEEL CORROSION RESISTING
End SimilarityNOT IDENTICAL
Second End Groove Width0.0170 INCHES NOMINAL IN
Second End Distance From End to Groove0.483 INCHES NOMINAL IN
Second End Diameter0.1870 INCHES NOMINAL IN
FSC Application DataINDICATOR,THRUST
First End Diameter0.1870 INCHES NOMINAL IN
Second End Groove Diameter0.1740 INCHES NOMINAL IN
First End StylePLAIN
Second End StyleCIRCULAR GROOVED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5331-00-086-2584A218 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
3110-00-155-7378CM218 INTERCHANGEABLE
Bearing,roller,cylindrical
American Roller Bearing Inc
5331-00-173-8142995242 INTERCHANGEABLE
O-Ring
Xomox Corp Sub of Emerson Electric Co
3455-00-554-732010440 INTERCHANGEABLE
Cutter,milling,plain
Niagara Cutter Inc
3040-01-029-7564121B646H03 INTERCHANGEABLE
Shaft,straight
Northrop Grumman Support Services Corp
4730-01-084-2763A218 INTERCHANGEABLE
Strainer Element,sediment
Volcanic Heater Inc Dba Volcanic Heater, Inc.
5130-01-112-0612A21-8 INTERCHANGEABLE
Anvil,fastener Installation Tool
Hi-Shear Corporation
4010-01-430-4286 INTERCHANGEABLE
Chain Assembly,single Leg
3040-01-470-9689055417 INTERCHANGEABLE
Shaft,precision
L3 Technologies, Inc. Div L3 Keo
5940-01-539-3761A218 INTERCHANGEABLE
Terminal,lug
Harger Inc Dba Harger Lightning Protection Inc
Cross-Reference Index
Part NumberManufacturer
A2-18 PRIMARY Roller Bearing Co of America, Inc Div Pic Design (USA)
69120-108 L3harris Technologies, Inc. Div Space and Airborne Systems (USA)
2557-43298 Unisys Corp Defense Systems C S D Field Engineering (USA)
933B055417 L3 Technologies, Inc. Div L3 Keo (USA)
933D055417 L3 Technologies, Inc. Div L3 Keo (USA)
SCD10301 Celtech Corporation Div Use CAGE 65552 for All Orders (USA)
Related Parts
5331-00-086-2584INTERCHANGEABLE
O-RING
A218
3110-00-155-7378INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
CM218
5331-00-173-8142INTERCHANGEABLE
O-RING
995242
3455-00-554-7320INTERCHANGEABLE
CUTTER,MILLING,PLAIN
10440
3040-01-029-7564INTERCHANGEABLE
SHAFT,STRAIGHT
121B646H03
4730-01-084-2763INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
A218
5130-01-112-0612INTERCHANGEABLE
ANVIL,FASTENER INSTALLATION TOOL
A21-8
4010-01-430-4286INTERCHANGEABLE
CHAIN ASSEMBLY,SINGLE LEG
3040-01-470-9689INTERCHANGEABLE
SHAFT,PRECISION
055417
5940-01-539-3761INTERCHANGEABLE
TERMINAL,LUG
A218
5940-01-576-8603INTERCHANGEABLE
TERMINAL,LUG
A218
5340-01-616-2403INTERCHANGEABLE
BRACKET,MOUNTING
A-281

Frequently Asked Questions

What is NSN 3040-00-891-9637?

NSN 3040-00-891-9637 is a Shaft,straight, manufactured by Roller Bearing Co of America, Inc Div Pic Design, classified under FSC 3040 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3040-00-891-9637?

NSN 3040-00-891-9637 has 6 cross-referenced part numbers: A2-18 (Roller Bearing Co of America, Inc Div Pic Design), 69120-108 (L3harris Technologies, Inc. Div Space and Airborne Systems), 2557-43298 (Unisys Corp Defense Systems C S D Field Engineering), 933B055417 (L3 Technologies, Inc. Div L3 Keo), 933D055417 (L3 Technologies, Inc. Div L3 Keo) and 1 more.

What NSN replaces 3040-00-891-9637?

There are 12 known substitutes for 3040-00-891-9637: 5331-00-086-2584, 3110-00-155-7378, 5331-00-173-8142 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A2-18?

Key specifications for A2-18: Material: STEEL CORROSION RESISTING; Overall Length: 1.875 INCHES NOMINAL IN; End Similarity: NOT IDENTICAL; Second End Groove Width: 0.0170 INCHES NOMINAL IN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3040-00-891-9637 still in active supply?

NSN 3040-00-891-9637 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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