PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

639-3935File,endodontic,rotary

Medidenta International Inc · NSN 6520-01-557-7890 · FSC 6520 · No Item Name Available
Verified by PartsTable
NSN 6520-01-557-7890 — this item is cataloged by the U.S. Government under National Stock Number 6520-01-557-7890. Primary manufacturer part number: 639-3935.
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 6520-01-557-7890, 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: PG.

Technical Specifications
ParameterValue
NSN6520-01-557-7890
Primary Part Number639-3935
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 8
5310-00-638-68534647 INTERCHANGEABLE
Nut,plain,round
Eaton Corp Transmission Div
5905-00-724-575895J6K8 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
5355-00-810-74184647 INTERCHANGEABLE
Dial,control
Electro Scientific Industries Inc
6680-00-815-52644647-11 INTERCHANGEABLE
Plunger Assembly,valve
Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives
7810-01-078-5665 INTERCHANGEABLE
Bag,training,boxer's
6210-01-130-39664647 INTERCHANGEABLE
Light,indicator
Hoyt Corporation
5365-01-196-56204647 INTERCHANGEABLE
Plug,machine Thread
Husco International Inc
5961-01-268-1896TIP47 INTERCHANGEABLE
Transistor
Semiconductor Components Industries, Llc Dba Semiconductor Components Industries Llc Div Corporate Headquarters
Cross-Reference Index
Part NumberManufacturer
639-3935 PRIMARY Medidenta International Inc (USA)
6520NCM071792 Defense Medical Standardization Board (USA)
RISPISONIC 19 MM SIZE 5 Medidenta International Inc (USA)
4647 Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia (USA)
Related Parts
5310-00-638-6853INTERCHANGEABLE
NUT,PLAIN,ROUND
4647
5905-00-724-5758INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
95J6K8
5355-00-810-7418INTERCHANGEABLE
DIAL,CONTROL
4647
6680-00-815-5264INTERCHANGEABLE
PLUNGER ASSEMBLY,VALVE
4647-11
7810-01-078-5665INTERCHANGEABLE
BAG,TRAINING,BOXER'S
6210-01-130-3966INTERCHANGEABLE
LIGHT,INDICATOR
4647
5365-01-196-5620INTERCHANGEABLE
PLUG,MACHINE THREAD
4647
5961-01-268-1896INTERCHANGEABLE
TRANSISTOR
TIP47

Frequently Asked Questions

What is NSN 6520-01-557-7890?

NSN 6520-01-557-7890 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 6520-01-557-7890?

NSN 6520-01-557-7890 has 4 cross-referenced part numbers: 639-3935 (Medidenta International Inc), 6520NCM071792 (Defense Medical Standardization Board), RISPISONIC 19 MM SIZE 5 (Medidenta International Inc), 4647 (Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia).

What NSN replaces 6520-01-557-7890?

There are 8 known substitutes for 6520-01-557-7890: 5310-00-638-6853, 5905-00-724-5758, 5355-00-810-7418 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 639-3935?

Key specifications for 639-3935: Part Name Assigned by Controlling Agency: FILE ENDO RISPISONIC 19MM SZ 5 6S MM; Special Features: ENDODONTIC FILE, RISPISONIC; 19MM; SIZE: 5; COLOR CODED: GREEN; USE W/SONIC AIR HANDPIECE, NSN: 6520-01-462-0759 MM. 2 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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