PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K2-12Hub,body

Roller Bearing Co of America, Inc Div Pic Design · NSN 3040-01-064-2735 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-064-2735 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-064-2735. Primary manufacturer part number: K2-12.
Features
  • Hub,body — FSC 3040
  • Surface Treatment: PASSIVATE
  • Shoulder Width: 0.031 INCHES NOMINAL IN
  • Hub Inside Diameter: 0.187 INCHES NOMINAL IN
  • Distance From Second End Hub to Shoulder: 0.250 INCHES NOMINAL IN
  • Material Document and Classification: COMP 303 FED SPEC SINGLE MATERIAL RESPONSE
  • Second End Hub Outside Diameter: 0.250 INCHES NOMINAL IN
  • Material: STEEL
Applications
  • Applications requiring Steel construction
General Description

The Hub,body, cataloged under National Stock Number 3040-01-064-2735, 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 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-01-064-2735
Primary Part NumberK2-12
Item NameHub,body
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerRoller Bearing Co of America, Inc Div Pic Design
StatusACTIVE
Surface TreatmentPASSIVATE
Shoulder Width0.031 INCHES NOMINAL IN
Hub Inside Diameter0.187 INCHES NOMINAL IN
Distance From Second End Hub to Shoulder0.250 INCHES NOMINAL IN
Material Document and ClassificationCOMP 303 FED SPEC SINGLE MATERIAL RESPONSE
Second End Hub Outside Diameter0.250 INCHES NOMINAL IN
MaterialSTEEL
Shoulder Outside Diameter0.438 INCHES NOMINAL IN
Style DesignatorDOUBLE HUB, THREADED AND SPLIT
Distance From First End Hub to Shoulder0.319 INCHES NOMINAL IN
First End Hub Outside Diameter0.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5120-00-156-9409P212 INTERCHANGEABLE
Contact Positioner,terminal Crim
Daniels Manufacturing Corporation
4210-00-889-2221 INTERCHANGEABLE
Extinguisher,fire
6625-01-210-5835K212 INTERCHANGEABLE
Dolly,test Equipment
Tektronix, Inc.
5120-01-335-8610K212 INTERCHANGEABLE
Contact Positioner,terminal Crim
Daniels Manufacturing Corporation
Cross-Reference Index
Part NumberManufacturer
E65-4 Designatronics Incorporated Div Sterling Instruments Div (USA)
K2-12 PRIMARY Roller Bearing Co of America, Inc Div Pic Design (USA)
CH2-12 W. M. Berg, Inc. (USA)
Related Parts
5120-00-156-9409INTERCHANGEABLE
CONTACT POSITIONER,TERMINAL CRIM
P212
4210-00-889-2221INTERCHANGEABLE
EXTINGUISHER,FIRE
6625-01-210-5835INTERCHANGEABLE
DOLLY,TEST EQUIPMENT
K212
5120-01-335-8610INTERCHANGEABLE
CONTACT POSITIONER,TERMINAL CRIM
K212

Frequently Asked Questions

What is NSN 3040-01-064-2735?

NSN 3040-01-064-2735 is a Hub,body, manufactured by Roller Bearing Co of America, Inc Div Pic Design, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-064-2735?

NSN 3040-01-064-2735 has 3 cross-referenced part numbers: E65-4 (Designatronics Incorporated Div Sterling Instruments Div), K2-12 (Roller Bearing Co of America, Inc Div Pic Design), CH2-12 (W. M. Berg, Inc.).

What NSN replaces 3040-01-064-2735?

There are 4 known substitutes for 3040-01-064-2735: 5120-00-156-9409, 4210-00-889-2221, 6625-01-210-5835 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of K2-12?

Key specifications for K2-12: Surface Treatment: PASSIVATE; Shoulder Width: 0.031 INCHES NOMINAL IN; Hub Inside Diameter: 0.187 INCHES NOMINAL IN; Distance From Second End Hub to Shoulder: 0.250 INCHES NOMINAL IN. 12 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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