PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

J-120Chain,elastomeric,dental

Rocky Mountain Orthodontics Inc Dba Rmo Inc · NSN 6520-01-270-8842 · FSC 6520 · No Item Name Available
Verified by PartsTable
NSN 6520-01-270-8842 — this item is cataloged by the U.S. Government under National Stock Number 6520-01-270-8842. Primary manufacturer part number: J-120.
Features
  • Chain,elastomeric,dental — FSC 6520
  • Design Designation: ORTHODONTIC
  • Material: RUBBER LOCATION NOT OTHERWISE SPECIFIED
  • Matrix Band: NOT INCLUDED
  • 2 verified cross-references
  • Primary manufacturer: Rocky Mountain Orthodontics Inc Dba Rmo Inc
Applications
  • Applications requiring Rubber Location Not Otherwise Specified construction
General Description

The Chain,elastomeric,dental, cataloged under National Stock Number 6520-01-270-8842, 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 Rocky Mountain Orthodontics Inc Dba Rmo Inc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6520-01-270-8842
Primary Part NumberJ-120
Item NameChain,elastomeric,dental
FSC / FSG6520 / 65 — No Item Name Available
ManufacturerRocky Mountain Orthodontics Inc Dba Rmo Inc
StatusACTIVE
Design DesignationORTHODONTIC
MaterialRUBBER LOCATION NOT OTHERWISE SPECIFIED
Matrix BandNOT INCLUDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5331-00-455-7025 INTERCHANGEABLE
O-Ring
2520-00-700-07292843G111 INTERCHANGEABLE
Shaft Transfer Gear
Meritor Heavy Vehicle Systems, Llc
7610-00-753-5082J120 INTERCHANGEABLE
Manual,technical
Federal Equipment and Manufacturing Co., Inc. Div Federal Equipment & Manufacturing Co., Inc.
5331-01-128-0432AS3581-135 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5330-01-265-2447120R2 CLASS 1 SIZE R125 AMS3215 INTERCHANGEABLE
Packing,preformed
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
87-8-6-53 Air Force Medical Logistics Office (USA)
J-120 PRIMARY Rocky Mountain Orthodontics Inc Dba Rmo Inc (USA)
Related Parts
5331-00-455-7025INTERCHANGEABLE
O-RING
2520-00-700-0729INTERCHANGEABLE
SHAFT TRANSFER GEAR
2843G111
7610-00-753-5082INTERCHANGEABLE
MANUAL,TECHNICAL
J120
5331-01-128-0432INTERCHANGEABLE
O-RING
AS3581-135
5330-01-265-2447INTERCHANGEABLE
PACKING,PREFORMED
120R2 CLASS 1 SIZE R125 AMS3215

Frequently Asked Questions

What is NSN 6520-01-270-8842?

NSN 6520-01-270-8842 is a Chain,elastomeric,dental, manufactured by Rocky Mountain Orthodontics Inc Dba Rmo Inc, classified under FSC 6520 (No Item Name Available). Status: active.

What are the part numbers for NSN 6520-01-270-8842?

NSN 6520-01-270-8842 has 2 cross-referenced part numbers: 87-8-6-53 (Air Force Medical Logistics Office), J-120 (Rocky Mountain Orthodontics Inc Dba Rmo Inc).

What NSN replaces 6520-01-270-8842?

There are 5 known substitutes for 6520-01-270-8842: 5331-00-455-7025, 2520-00-700-0729, 7610-00-753-5082 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of J-120?

Key specifications for J-120: Design Designation: ORTHODONTIC; Special Features: CLEAR - TASTELESS; STAIN-RESISTANT; CLOSED; NO SPACING BETWEEN RINGS; CORRECTS IMPROPER SPACING OF THE TEETH; UNIT QTY 3 SPOOLS; 39.3 IN. EACH IN; Material: RUBBER LOCATION NOT OTHERWISE SPECIFIED; Matrix Band: NOT INCLUDED. 4 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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