PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

621-2135File,endodontic,rotary

Medidenta International Inc · NSN 6520-01-557-7873 · FSC 6520 · No Item Name Available
Verified by PartsTable
NSN 6520-01-557-7873 — this item is cataloged by the U.S. Government under National Stock Number 6520-01-557-7873. Primary manufacturer part number: 621-2135.
Features
  • File,endodontic,rotary — FSC 6520
  • 4 verified cross-references
  • Primary manufacturer: Medidenta International Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The File,endodontic,rotary, cataloged under National Stock Number 6520-01-557-7873, 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 Medidenta International Inc. This item has 4 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. Unit of issue: PG.

Technical Specifications
ParameterValue
NSN6520-01-557-7873
Primary Part Number621-2135
Item NameFile,endodontic,rotary
FSC / FSG6520 / 65 — No Item Name Available
ManufacturerMedidenta International Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssuePG
Verified Substitutes 12
6240-00-151-7634725037PC3 INTERCHANGEABLE
Lamp,fluorescent
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5996-00-400-8209465-3 INTERCHANGEABLE
Amplifier Module
General Microwave Corporation Div Kratos Microwave Electronics
5330-00-442-6319 INTERCHANGEABLE
Felt,mechanical,preformed
3110-00-554-3232204S INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
5325-00-662-9845 INTERCHANGEABLE
Ring,retaining
5305-00-769-2168171341 INTERCHANGEABLE
Screw,cap,hexagon Head
Fwd Seagrave Holdings Lp
5355-00-814-56234653 INTERCHANGEABLE
Pointer,dial
Electro Scientific Industries Inc
5330-00-866-4407 INTERCHANGEABLE
Gasket
5330-01-197-75154242 INTERCHANGEABLE
Seal,plain
Barber-Nichols, Llc
5970-01-237-14124653 INTERCHANGEABLE
Insulator,plate
Keystone Electronics Corp
Cross-Reference Index
Part NumberManufacturer
SHAPERSONIC 21 MM SIZE 35 Medidenta International Inc (USA)
6520NCM071798 Defense Medical Standardization Board (USA)
4653 Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia (USA)
621-2135 PRIMARY Medidenta International Inc (USA)
Related Parts
6240-00-151-7634INTERCHANGEABLE
LAMP,FLUORESCENT
725037PC3
5996-00-400-8209INTERCHANGEABLE
AMPLIFIER MODULE
465-3
5330-00-442-6319INTERCHANGEABLE
FELT,MECHANICAL,PREFORMED
3110-00-554-3232INTERCHANGEABLE
BEARING,BALL,ANNULAR
204S
5325-00-662-9845INTERCHANGEABLE
RING,RETAINING
5305-00-769-2168INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
171341
5355-00-814-5623INTERCHANGEABLE
POINTER,DIAL
4653
5330-00-866-4407INTERCHANGEABLE
GASKET
5330-01-197-7515INTERCHANGEABLE
SEAL,PLAIN
4242
5970-01-237-1412INTERCHANGEABLE
INSULATOR,PLATE
4653
5120-01-431-2780INTERCHANGEABLE
SOCKET SET,SOCKET WRENCH
4653
1710-01-504-2423INTERCHANGEABLE
CARTRIDGE,VALVE,AIR
465-3

Frequently Asked Questions

What is NSN 6520-01-557-7873?

NSN 6520-01-557-7873 is a File,endodontic,rotary, manufactured by Medidenta International Inc, classified under FSC 6520 (No Item Name Available). Status: active.

What are the part numbers for NSN 6520-01-557-7873?

NSN 6520-01-557-7873 has 4 cross-referenced part numbers: SHAPERSONIC 21 MM SIZE 35 (Medidenta International Inc), 6520NCM071798 (Defense Medical Standardization Board), 4653 (Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia), 621-2135 (Medidenta International Inc).

What NSN replaces 6520-01-557-7873?

There are 12 known substitutes for 6520-01-557-7873: 6240-00-151-7634, 5996-00-400-8209, 5330-00-442-6319 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 621-2135?

Key specifications for 621-2135: Part Name Assigned by Controlling Agency: FILE ENDO SHAPERSONIC 21MM SZ 35 6S MM; End Item Identification: SONIC DENTAL HANDPIECE, NSN: 6520-01-462-0759; Special Features: SHAPERSONICE ENDO FILE; 21MM; SIZE: 35; GREEN COLOR CODED; MEDIUM AGGRESSIVE CUTTING INSTRUMENT FOR ENDODONTIC TREATMENT; 1.5MM SAFE END; FOR USE WITH SONIC DENTAL HANDPIECE, NSN: 6520-01-462-0759 MM. 3 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com