PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILC228Bearing Circle

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6605-00-240-5600 · FSC 6605 · No Item Name Available
Verified by PartsTable
NSN 6605-00-240-5600 — this item is cataloged by the U.S. Government under National Stock Number 6605-00-240-5600. Primary manufacturer part number: MILC228.
Features
  • Bearing Circle — FSC 6605
  • Scale Smallest Increment Graduation: 1 DEG
  • 1 verified cross-reference
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing Circle, cataloged under National Stock Number 6605-00-240-5600, is classified within Federal Supply Class 6605 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 1 verified specification, 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6605-00-240-5600
Primary Part NumberMILC228
Item NameBearing Circle
FSC / FSG6605 / 66 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Scale Smallest Increment Graduation1 DEG
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4030-00-233-9568 INTERCHANGEABLE
Clamp,wire Rope,saddled
6605-00-240-5599 INTERCHANGEABLE
Azimuth Circle
Cross-Reference Index
Part NumberManufacturer
MILC228 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4030-00-233-9568INTERCHANGEABLE
CLAMP,WIRE ROPE,SADDLED
6605-00-240-5599INTERCHANGEABLE
AZIMUTH CIRCLE

Frequently Asked Questions

What is NSN 6605-00-240-5600?

NSN 6605-00-240-5600 is a Bearing Circle, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 6605 (No Item Name Available). Status: active.

What are the part numbers for NSN 6605-00-240-5600?

NSN 6605-00-240-5600 has 1 cross-referenced part number: MILC228 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6605-00-240-5600?

There are 2 known substitutes for 6605-00-240-5600: 4030-00-233-9568, 6605-00-240-5599. Verify interchangeability with system specifications before substitution.

What are the specifications of MILC228?

Key specifications for MILC228: Special Features: SIGHTING APPENDAGES 1 EA PRISM,SIGHTING VANE FRONT AND REAR;RING GRAD CCW NO.DIRECTION MARKED EVERY 10 DEG;EQUIPPED W/SPIRIT LEVEL;W/CARRYING CASE; Scale Smallest Increment Graduation: 1 DEG. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com