PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GGG-S-656Square,combination

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5210-00-078-8950 · FSC 5210 · No Item Name Available
Verified by PartsTable
NSN 5210-00-078-8950 — this item is cataloged by the U.S. Government under National Stock Number 5210-00-078-8950. Primary manufacturer part number: GGG-S-656.
Features
  • Square,combination — FSC 5210
  • Center Head: INCLUDED
  • Material: IRON CAST SQUARE/MITER HEAD
  • Protractor Head: NOT INCLUDED
  • Level: INCLUDED
  • Square/miter Head Level Quantity: 1
  • Square/miter Head Scriber: INCLUDED
  • Blade Type: GROOVED
Applications
  • Applications requiring Iron Cast Square/miter Head construction
General Description

The Square,combination, cataloged under National Stock Number 5210-00-078-8950, is classified within Federal Supply Class 5210 (No Item Name Available) of the Measuring Tools group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5210-00-078-8950
Primary Part NumberGGG-S-656
Item NameSquare,combination
FSC / FSG5210 / 52 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
Center HeadINCLUDED
MaterialIRON CAST SQUARE/MITER HEAD
Protractor HeadNOT INCLUDED
LevelINCLUDED
Square/miter Head Level Quantity1
Square/miter Head ScriberINCLUDED
Blade TypeGROOVED
Blade Length24.000 INCHES NOMINAL IN
ReversibilityREVERSIBLE
Nondefinitive Spec/std Data2 TYPE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
5210-00-078-8944 INTERCHANGEABLE
Square,combination
5210-00-078-8946 INTERCHANGEABLE
Square,combination
5210-00-078-8947 INTERCHANGEABLE
Square,combination
5210-00-078-8948 INTERCHANGEABLE
Square,combination
5210-00-078-8949 INTERCHANGEABLE
Square,combination
5210-00-224-9937 INTERCHANGEABLE
Square,combination
5210-00-273-1937 INTERCHANGEABLE
Head,protractor,combination Squa
5210-00-450-6920599-425-1204-1 INTERCHANGEABLE
Square,combination
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
5210-00-540-3513 INTERCHANGEABLE
Square,combination
5210-01-657-494950057 INTERCHANGEABLE
Square,combination
L.s. Starrett Company (the) Div Tool Division
Cross-Reference Index
Part NumberManufacturer
GGG-S-656 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
A-A-3179 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
GGG-S-656 TY6CLASTB General Services Administration Federal Supply Service (USA)
A-A-3179 TY2 General Services Administration Federal Supply Service (USA)
Related Parts
5210-00-078-8944INTERCHANGEABLE
SQUARE,COMBINATION
5210-00-078-8946INTERCHANGEABLE
SQUARE,COMBINATION
5210-00-078-8947INTERCHANGEABLE
SQUARE,COMBINATION
5210-00-078-8948INTERCHANGEABLE
SQUARE,COMBINATION
5210-00-078-8949INTERCHANGEABLE
SQUARE,COMBINATION
5210-00-224-9937INTERCHANGEABLE
SQUARE,COMBINATION
5210-00-273-1937INTERCHANGEABLE
HEAD,PROTRACTOR,COMBINATION SQUA
5210-00-450-6920INTERCHANGEABLE
SQUARE,COMBINATION
599-425-1204-1
5210-00-540-3513INTERCHANGEABLE
SQUARE,COMBINATION
5210-01-657-4949INTERCHANGEABLE
SQUARE,COMBINATION
50057

Frequently Asked Questions

What is NSN 5210-00-078-8950?

NSN 5210-00-078-8950 is a Square,combination, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5210 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5210-00-078-8950?

NSN 5210-00-078-8950 has 4 cross-referenced part numbers: GGG-S-656 (Federal Specifications Promulgated by General Services Administration Washington DC), A-A-3179 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), GGG-S-656 TY6CLASTB (General Services Administration Federal Supply Service), A-A-3179 TY2 (General Services Administration Federal Supply Service).

What NSN replaces 5210-00-078-8950?

There are 10 known substitutes for 5210-00-078-8950: 5210-00-078-8944, 5210-00-078-8946, 5210-00-078-8947 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of GGG-S-656?

Key specifications for GGG-S-656: Center Head: INCLUDED; Material: IRON CAST SQUARE/MITER HEAD; Protractor Head: NOT INCLUDED; Level: INCLUDED. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5210-00-078-8950 still in active supply?

NSN 5210-00-078-8950 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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