PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C331-300Rule,machinist's

L.s. Starrett Company (the) Div Tool Division · NSN 5210-00-600-5757 · FSC 5210 · No Item Name Available
Verified by PartsTable
NSN 5210-00-600-5757 — this item is cataloged by the U.S. Government under National Stock Number 5210-00-600-5757. Primary manufacturer part number: C331-300.
Features
  • Rule,machinist's — FSC 5210
  • Edge Smallest Graduation Unit: 1/64 INCH AND 1/32 INCH AND 0.5 MILLIMETER AND 1.0 MILLIMETER MM
  • Thickness: 0.25 MILLIMETERS MINIMUM AND 0.40 MILLIMETERS MAXIMUM MM
  • Tapered End: NOT INCLUDED
  • Reading Direction: RIGHT
  • Beveled Edge: NOT INCLUDED
  • Length: 300.0 MILLIMETERS MM
  • Material: STEEL
Applications
  • Applications requiring Steel construction
General Description

The Rule,machinist's, cataloged under National Stock Number 5210-00-600-5757, 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 11 commercial cross-references from 8 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
NSN5210-00-600-5757
Primary Part NumberC331-300
Item NameRule,machinist's
FSC / FSG5210 / 52 — No Item Name Available
ManufacturerL.s. Starrett Company (the) Div Tool Division
StatusCANCELLED
Edge Smallest Graduation Unit1/64 INCH AND 1/32 INCH AND 0.5 MILLIMETER AND 1.0 MILLIMETER MM
Thickness0.25 MILLIMETERS MINIMUM AND 0.40 MILLIMETERS MAXIMUM MM
Tapered EndNOT INCLUDED
Reading DirectionRIGHT
Beveled EdgeNOT INCLUDED
Length300.0 MILLIMETERS MM
MaterialSTEEL
Width11.4 MILLIMETERS MINIMUM AND 12.7 MILLIMETERS MAXIMUM MM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5315-00-010-349811X13 INTERCHANGEABLE
Pin,straight,headed
Napco International Llc Dba Napco International Inc
5365-00-018-488751332 INTERCHANGEABLE
Spacer,solenoid Valve
Woodward Hrt Inc
3110-00-120-160520011 INTERCHANGEABLE
Bearing,roller,tapered
Fairbanks Morse, Llc
4820-00-221-871651332 INTERCHANGEABLE
Valve,plug
Richards Industries Valve Group Jordan Valve Div
5210-00-243-33515210-00-243-3351 INTERCHANGEABLE
Rule,machinist's
General Services Administration Federal Supply Service
5210-00-267-2765C330-300 INTERCHANGEABLE
Rule,machinist's
L.s. Starrett Company (the) Div Tool Division
5306-00-637-8688261012 INTERCHANGEABLE
Bolt,externally Relieved Body
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5210-00-813-07871216 INTERCHANGEABLE
Rule,machinist's
General Tools Manufacturing Co., Llc.
4820-01-099-4420R-95780 PIECE 15 INTERCHANGEABLE
Disk,valve
Kidde-Fenwal, Llc
5330-01-139-6388 INTERCHANGEABLE
Seal Kit
Cross-Reference Index
Part NumberManufacturer
CME300 L.s. Starrett Company (the) Div Tool Division (USA)
C331-300 PRIMARY L.s. Starrett Company (the) Div Tool Division (USA)
51332 L.s. Starrett Company (the) Div Tool Division (USA)
GGG-R-791 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
STA C331-300 Kipper Tool Company Dba Kipper Management Inc (USA)
CF1247ME PRIMARY General Tools Manufacturing Co., Llc. (USA)
GGG-R-791 TY4CL2 General Services Administration Federal Supply Service (USA)
33095 General Tools Manufacturing Co., Llc. (USA)
CF1247ME General Hardware Mfg Co Inc (USA)
5210-00-600-5757 Metal Etching Co Inc (USA)
261-012 Products Engineering Corporation (USA)
Related Parts
5315-00-010-3498INTERCHANGEABLE
PIN,STRAIGHT,HEADED
11X13
5365-00-018-4887INTERCHANGEABLE
SPACER,SOLENOID VALVE
51332
3110-00-120-1605INTERCHANGEABLE
BEARING,ROLLER,TAPERED
20011
4820-00-221-8716INTERCHANGEABLE
VALVE,PLUG
51332
5210-00-243-3351INTERCHANGEABLE
RULE,MACHINIST'S
5210-00-243-3351
5210-00-267-2765INTERCHANGEABLE
RULE,MACHINIST'S
C330-300
5306-00-637-8688INTERCHANGEABLE
BOLT,EXTERNALLY RELIEVED BODY
261012
5210-00-813-0787INTERCHANGEABLE
RULE,MACHINIST'S
1216
4820-01-099-4420INTERCHANGEABLE
DISK,VALVE
R-95780 PIECE 15
5330-01-139-6388INTERCHANGEABLE
SEAL KIT
5315-01-205-3714INTERCHANGEABLE
PIN,QUICK RELEASE
51332
2940-01-247-5569INTERCHANGEABLE
FILTER,FLUID
33095

Frequently Asked Questions

What is NSN 5210-00-600-5757?

NSN 5210-00-600-5757 is a Rule,machinist's, manufactured by L.s. Starrett Company (the) Div Tool Division, classified under FSC 5210 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5210-00-600-5757?

NSN 5210-00-600-5757 has 11 cross-referenced part numbers: CME300 (L.s. Starrett Company (the) Div Tool Division), C331-300 (L.s. Starrett Company (the) Div Tool Division), 51332 (L.s. Starrett Company (the) Div Tool Division), GGG-R-791 (Federal Specifications Promulgated by General Services Administration Washington DC), STA C331-300 (Kipper Tool Company Dba Kipper Management Inc) and 6 more.

What NSN replaces 5210-00-600-5757?

There are 12 known substitutes for 5210-00-600-5757: 5315-00-010-3498, 5365-00-018-4887, 3110-00-120-1605 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C331-300?

Key specifications for C331-300: Edge Smallest Graduation Unit: 1/64 INCH AND 1/32 INCH AND 0.5 MILLIMETER AND 1.0 MILLIMETER MM; Thickness: 0.25 MILLIMETERS MINIMUM AND 0.40 MILLIMETERS MAXIMUM MM; Tapered End: NOT INCLUDED; Reading Direction: RIGHT. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5210-00-600-5757 still in active supply?

NSN 5210-00-600-5757 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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