PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C305R-6Rule,machinist's

L.s. Starrett Company (the) Div Tool Division · NSN 5210-01-397-3068 · FSC 5210 · No Item Name Available
Verified by PartsTable
NSN 5210-01-397-3068 — this item is cataloged by the U.S. Government under National Stock Number 5210-01-397-3068. Primary manufacturer part number: C305R-6.
Features
  • Rule,machinist's — FSC 5210
  • Width: 0.500 INCHES NOMINAL IN
  • Length: 6.000 INCHES IN
  • Edge Smallest Graduation Unit: 1/100 INCH AND 1/64 INCH AND 1/32 INCH AND 1/10 INCH IN
  • Beveled Edge: NOT INCLUDED
  • Reading Direction: RIGHT
  • Tapered End: NOT INCLUDED
  • Material: STEEL
Applications
  • Applications requiring Steel construction
General Description

The Rule,machinist's, cataloged under National Stock Number 5210-01-397-3068, is classified within Federal Supply Class 5210 (No Item Name Available) of the Measuring Tools group. The primary manufacturer of record is L.s. Starrett Company (the) Div Tool Division. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5210-01-397-3068
Primary Part NumberC305R-6
Item NameRule,machinist's
FSC / FSG5210 / 52 — No Item Name Available
ManufacturerL.s. Starrett Company (the) Div Tool Division
StatusACTIVE
Width0.500 INCHES NOMINAL IN
Length6.000 INCHES IN
Edge Smallest Graduation Unit1/100 INCH AND 1/64 INCH AND 1/32 INCH AND 1/10 INCH IN
Beveled EdgeNOT INCLUDED
Reading DirectionRIGHT
Tapered EndNOT INCLUDED
MaterialSTEEL
Thickness0.016 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4310-00-163-852351347 INTERCHANGEABLE
Plate,valve Stop
Waterous Company
5210-00-971-88275210-00-971-8827 INTERCHANGEABLE
Rule,machinist's
General Services Administration Federal Supply Service
2940-01-260-012151347 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
Cross-Reference Index
Part NumberManufacturer
51347 L.s. Starrett Company (the) Div Tool Division (USA)
C305R-6 PRIMARY L.s. Starrett Company (the) Div Tool Division (USA)
C305R-6 STARRETT Kipper Tool Company Dba Kipper Management Inc (USA)
Related Parts
4310-00-163-8523INTERCHANGEABLE
PLATE,VALVE STOP
51347
5210-00-971-8827INTERCHANGEABLE
RULE,MACHINIST'S
5210-00-971-8827
2940-01-260-0121INTERCHANGEABLE
FILTER ELEMENT,FLUID
51347

Frequently Asked Questions

What is NSN 5210-01-397-3068?

NSN 5210-01-397-3068 is a Rule,machinist's, manufactured by L.s. Starrett Company (the) Div Tool Division, classified under FSC 5210 (No Item Name Available). Status: active.

What are the part numbers for NSN 5210-01-397-3068?

NSN 5210-01-397-3068 has 3 cross-referenced part numbers: 51347 (L.s. Starrett Company (the) Div Tool Division), C305R-6 (L.s. Starrett Company (the) Div Tool Division), C305R-6 STARRETT (Kipper Tool Company Dba Kipper Management Inc).

What NSN replaces 5210-01-397-3068?

There are 3 known substitutes for 5210-01-397-3068: 4310-00-163-8523, 5210-00-971-8827, 2940-01-260-0121. Verify interchangeability with system specifications before substitution.

What are the specifications of C305R-6?

Key specifications for C305R-6: Width: 0.500 INCHES NOMINAL IN; Length: 6.000 INCHES IN; Edge Smallest Graduation Unit: 1/100 INCH AND 1/64 INCH AND 1/32 INCH AND 1/10 INCH IN; Beveled Edge: NOT INCLUDED. 9 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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