PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

45-300Square,carpenter's

The Stanley Works Dba Stanley Proto · NSN 5210-01-428-5570 · FSC 5210 · No Item Name Available
Verified by PartsTable
NSN 5210-01-428-5570 — this item is cataloged by the U.S. Government under National Stock Number 5210-01-428-5570. Primary manufacturer part number: 45-300.
Features
  • Square,carpenter's — FSC 5210
  • Material: ALUMINUM
  • Tongue Length: 16.000 INCHES IN
  • Inscribed Reference Table: NEW LUMBER SCALE; DECIMAL EQUIVALENT TABLE; METRIC CONVERSION TABLE; FORMULA FOR SQUARING FOUNDATION; 30, 45 AND 60 DEG MARKINGS; VOLUME AND AREA FORMULAS; WOOD SCREW GAGE TABLE; NAIL SIZES (COMMON AND FINISH) QTY PER LB; DEPTH SCALE
  • Design Type: ONE-PIECE
  • Body Length: 24.000 INCHES NOMINAL IN
  • Blade Edge Smallest Graduation Unit: 1/8 INCH IN
  • 4 verified cross-references
Applications
  • Applications requiring Aluminum construction
General Description

The Square,carpenter's, cataloged under National Stock Number 5210-01-428-5570, is classified within Federal Supply Class 5210 (No Item Name Available) of the Measuring Tools group. The primary manufacturer of record is The Stanley Works Dba Stanley Proto. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN5210-01-428-5570
Primary Part Number45-300
Item NameSquare,carpenter's
FSC / FSG5210 / 52 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusACTIVE
MaterialALUMINUM
Tongue Length16.000 INCHES IN
Inscribed Reference TableNEW LUMBER SCALE; DECIMAL EQUIVALENT TABLE; METRIC CONVERSION TABLE; FORMULA FOR SQUARING FOUNDATION; 30, 45 AND 60 DEG MARKINGS; VOLUME AND AREA FORMULAS; WOOD SCREW GAGE TABLE; NAIL SIZES (COMMON AND FINISH) QTY PER LB; DEPTH SCALE
Design TypeONE-PIECE
Body Length24.000 INCHES NOMINAL IN
Blade Edge Smallest Graduation Unit1/8 INCH IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5935-00-204-64037423373P7 INTERCHANGEABLE
Connector,plug,electrical
Lockheed Martin Corporation Div Rms
5310-01-238-8389111-8688 INTERCHANGEABLE
Washer,flat
Wartsila Canada Inc
4730-01-662-133045300 INTERCHANGEABLE
Clamp,hose
Tridon Tennessee Inc
Cross-Reference Index
Part NumberManufacturer
6R155 W.w. Grainger, Inc. Div Government Sales Division (USA)
45-300 PRIMARY The Stanley Works Dba Stanley Proto (USA)
45-300 Stanley Tools Div of Stanley Works (USA)
1140 PRIMARY Empire Level Mfg Co (USA)
Related Parts
5935-00-204-6403INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
7423373P7
5310-01-238-8389INTERCHANGEABLE
WASHER,FLAT
111-8688
4730-01-662-1330INTERCHANGEABLE
CLAMP,HOSE
45300

Frequently Asked Questions

What is NSN 5210-01-428-5570?

NSN 5210-01-428-5570 is a Square,carpenter's, manufactured by The Stanley Works Dba Stanley Proto, classified under FSC 5210 (No Item Name Available). Status: active.

What are the part numbers for NSN 5210-01-428-5570?

NSN 5210-01-428-5570 has 4 cross-referenced part numbers: 6R155 (W.w. Grainger, Inc. Div Government Sales Division), 45-300 (The Stanley Works Dba Stanley Proto), 45-300 (Stanley Tools Div of Stanley Works), 1140 (Empire Level Mfg Co).

What NSN replaces 5210-01-428-5570?

There are 3 known substitutes for 5210-01-428-5570: 5935-00-204-6403, 5310-01-238-8389, 4730-01-662-1330. Verify interchangeability with system specifications before substitution.

What are the specifications of 45-300?

Key specifications for 45-300: Material: ALUMINUM; Tongue Length: 16.000 INCHES IN; Inscribed Reference Table: NEW LUMBER SCALE; DECIMAL EQUIVALENT TABLE; METRIC CONVERSION TABLE; FORMULA FOR SQUARING FOUNDATION; 30, 45 AND 60 DEG MARKINGS; VOLUME AND AREA FORMULAS; WOOD SCREW GAGE TABLE; NAIL SIZES (COMMON AND FINISH) QTY PER LB; DEPTH SCALE; Design Type: ONE-PIECE. 7 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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