PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50057Square,combination

L.s. Starrett Company (the) Div Tool Division · NSN 5210-01-657-4949 · FSC 5210 · No Item Name Available
Verified by PartsTable
NSN 5210-01-657-4949 — this item is cataloged by the U.S. Government under National Stock Number 5210-01-657-4949. Primary manufacturer part number: 50057.
Features
  • Square,combination — FSC 5210
  • Blade Length: 12.00 INCHES NOMINAL IN
  • Square/miter Head Hardness Designation: HARDENED
  • Material: IRON CAST SQUARE/MITER HEAD
  • Square/miter Head Level Quantity: 1
  • Nondefinitive Spec/std Data: 2 TYPE
  • Material: STEEL LOCATION NOT OTHERWISE SPECIFIED
  • 3 verified cross-references
Applications
  • Applications requiring Iron Cast Square/miter Head construction
General Description

The Square,combination, cataloged under National Stock Number 5210-01-657-4949, 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 6 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5210-01-657-4949
Primary Part Number50057
Item NameSquare,combination
FSC / FSG5210 / 52 — No Item Name Available
ManufacturerL.s. Starrett Company (the) Div Tool Division
StatusACTIVE
Blade Length12.00 INCHES NOMINAL IN
Square/miter Head Hardness DesignationHARDENED
MaterialIRON CAST SQUARE/MITER HEAD
Square/miter Head Level Quantity1
Nondefinitive Spec/std Data2 TYPE
MaterialSTEEL LOCATION NOT OTHERWISE SPECIFIED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5210-00-078-8944 INTERCHANGEABLE
Square,combination
5210-00-078-8947 INTERCHANGEABLE
Square,combination
5210-00-078-8948 INTERCHANGEABLE
Square,combination
5210-00-078-8949 INTERCHANGEABLE
Square,combination
5210-00-078-8950 INTERCHANGEABLE
Square,combination
5210-00-224-9937 INTERCHANGEABLE
Square,combination
5210-00-273-1937 INTERCHANGEABLE
Head,protractor,combination Squa
5330-00-286-685160480 INTERCHANGEABLE
Seal,plain Encased
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
5930-00-350-777650057 INTERCHANGEABLE
Switch,push
Astronautics Corporation of America
5210-00-450-6920599-425-1204-1 INTERCHANGEABLE
Square,combination
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
Cross-Reference Index
Part NumberManufacturer
A-A-3179 TY2 General Services Administration Federal Supply Service (USA)
50057 PRIMARY L.s. Starrett Company (the) Div Tool Division (USA)
A-A-3179 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
Related Parts
5210-00-078-8944INTERCHANGEABLE
SQUARE,COMBINATION
5210-00-078-8947INTERCHANGEABLE
SQUARE,COMBINATION
5210-00-078-8948INTERCHANGEABLE
SQUARE,COMBINATION
5210-00-078-8949INTERCHANGEABLE
SQUARE,COMBINATION
5210-00-078-8950INTERCHANGEABLE
SQUARE,COMBINATION
5210-00-224-9937INTERCHANGEABLE
SQUARE,COMBINATION
5210-00-273-1937INTERCHANGEABLE
HEAD,PROTRACTOR,COMBINATION SQUA
5330-00-286-6851INTERCHANGEABLE
SEAL,PLAIN ENCASED
60480
5930-00-350-7776INTERCHANGEABLE
SWITCH,PUSH
50057
5210-00-450-6920INTERCHANGEABLE
SQUARE,COMBINATION
599-425-1204-1
3455-00-491-7643INTERCHANGEABLE
FILE,ROTARY
5210-00-540-3513INTERCHANGEABLE
SQUARE,COMBINATION

Frequently Asked Questions

What is NSN 5210-01-657-4949?

NSN 5210-01-657-4949 is a Square,combination, 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 5210-01-657-4949?

NSN 5210-01-657-4949 has 3 cross-referenced part numbers: A-A-3179 TY2 (General Services Administration Federal Supply Service), 50057 (L.s. Starrett Company (the) Div Tool Division), A-A-3179 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).

What NSN replaces 5210-01-657-4949?

There are 12 known substitutes for 5210-01-657-4949: 5210-00-078-8944, 5210-00-078-8947, 5210-00-078-8948 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50057?

Key specifications for 50057: Blade Length: 12.00 INCHES NOMINAL IN; Square/miter Head Hardness Designation: HARDENED; Material: IRON CAST SQUARE/MITER HEAD; Square/miter Head Level Quantity: 1. 6 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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