PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11.780Disk,abrasive

Grobet File Company of America, Inc. Dba William Dixon · NSN 6520-00-523-2150 · FSC 6520 · No Item Name Available
Verified by PartsTable
NSN 6520-00-523-2150 — this item is cataloged by the U.S. Government under National Stock Number 6520-00-523-2150. Primary manufacturer part number: 11.780.
Features
  • Disk,abrasive — FSC 6520
  • Usage Design: DENTAL
  • Outside Diameter: 0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN
  • Nondefinitive Spec/std Data: A CLASS AND 1 SIZE
  • Mounting Method: ARBOR HOLE
  • Backing Abrasive Coating Type: CLOSED
  • Mounting Opening Shape Style: ROUND
  • Screen Grit Size Designator: 90
Applications
  • Applications requiring Rubber Synthetic Backing construction
General Description

The Disk,abrasive, cataloged under National Stock Number 6520-00-523-2150, is classified within Federal Supply Class 6520 (No Item Name Available) of the Medical, Dental, and Veterinary Equipment group. The primary manufacturer of record is Grobet File Company of America, Inc. Dba William Dixon. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: PG.

Technical Specifications
ParameterValue
NSN6520-00-523-2150
Primary Part Number11.780
Item NameDisk,abrasive
FSC / FSG6520 / 65 — No Item Name Available
ManufacturerGrobet File Company of America, Inc. Dba William Dixon
StatusACTIVE
Usage DesignDENTAL
Outside Diameter0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN
Nondefinitive Spec/std DataA CLASS AND 1 SIZE
Mounting MethodARBOR HOLE
Backing Abrasive Coating TypeCLOSED
Mounting Opening Shape StyleROUND
Screen Grit Size Designator90
Abrasive Disk TypePLAIN FLAT
Diameter0.073 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN
MaterialRUBBER SYNTHETIC BACKING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssuePG
Verified Substitutes 9
4820-00-036-1541N11780 INTERCHANGEABLE
Disk,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
5945-00-222-596211780 INTERCHANGEABLE
Relay,electromagnetic
Thales Usa, Inc. Div Air Mobility Solutions ("ams")
3455-00-246-034811780 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
Niagara Cutter Inc
3120-00-957-3310 INTERCHANGEABLE
Bearing,washer,thrust
4820-01-155-0209RK11780 INTERCHANGEABLE
Cock,drain
Parker-Hannifin Corporation Dba Racor Division Div Racor Division
5950-01-222-4442984717-4B INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon
4820-01-223-0594 INTERCHANGEABLE
Valve Assembly,manifold
5340-01-439-530311780 INTERCHANGEABLE
Cap,protective,dust and Moisture
Rubber Industries, Inc. Dba Rubber Industries
7310-01-528-002011780 INTERCHANGEABLE
Stove,multi-Fuel Burner
Mountain Safety Research Inc
Cross-Reference Index
Part NumberManufacturer
11.780 Grobet File Company of America, Inc. Dba William Dixon (USA)
Related Parts
4820-00-036-1541INTERCHANGEABLE
DISK,VALVE
N11780
5945-00-222-5962INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
11780
3455-00-246-0348INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
11780
3120-00-957-3310INTERCHANGEABLE
BEARING,WASHER,THRUST
4820-01-155-0209INTERCHANGEABLE
COCK,DRAIN
RK11780
5950-01-222-4442INTERCHANGEABLE
TRANSFORMER,POWER
984717-4B
4820-01-223-0594INTERCHANGEABLE
VALVE ASSEMBLY,MANIFOLD
5340-01-439-5303INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
11780
7310-01-528-0020INTERCHANGEABLE
STOVE,MULTI-FUEL BURNER
11780

Frequently Asked Questions

What is NSN 6520-00-523-2150?

NSN 6520-00-523-2150 is a Disk,abrasive, manufactured by Grobet File Company of America, Inc. Dba William Dixon, classified under FSC 6520 (No Item Name Available). Status: active.

What are the part numbers for NSN 6520-00-523-2150?

NSN 6520-00-523-2150 has 1 cross-referenced part number: 11.780 (Grobet File Company of America, Inc. Dba William Dixon).

What NSN replaces 6520-00-523-2150?

There are 9 known substitutes for 6520-00-523-2150: 4820-00-036-1541, 5945-00-222-5962, 3455-00-246-0348 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11.780?

Key specifications for 11.780: Usage Design: DENTAL; Outside Diameter: 0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN; Nondefinitive Spec/std Data: A CLASS AND 1 SIZE; Mounting Method: ARBOR HOLE. 12 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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