PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1-661Impression Tray,dental

Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia · NSN 6520-01-120-2653 · FSC 6520 · No Item Name Available
Verified by PartsTable
NSN 6520-01-120-2653 — this item is cataloged by the U.S. Government under National Stock Number 6520-01-120-2653. Primary manufacturer part number: 1-661.
Features
  • Impression Tray,dental — FSC 6520
  • Hydrocolloid Usage Feature: INCLUDED
  • Material: COPPER ALLOY AND NICKEL AND CHROMIUM
  • Size Designation: X-LARGE
  • Rim Locking Feature: PROVIDED
  • Jaw for Which Designed: LOWER
  • Handle Type: INTEGRAL
  • Cooling Type: WATER
Applications
  • Applications requiring Copper Alloy and Nickel and Chromium construction
General Description

The Impression Tray,dental, cataloged under National Stock Number 6520-01-120-2653, 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 Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia. Government technical data includes 8 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6520-01-120-2653
Primary Part Number1-661
Item NameImpression Tray,dental
FSC / FSG6520 / 65 — No Item Name Available
ManufacturerDefense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia
StatusACTIVE
Hydrocolloid Usage FeatureINCLUDED
MaterialCOPPER ALLOY AND NICKEL AND CHROMIUM
Size DesignationX-LARGE
Rim Locking FeaturePROVIDED
Jaw for Which DesignedLOWER
Handle TypeINTEGRAL
Cooling TypeWATER
Unit TypeDENTULOUS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
6240-00-155-7958 INTERCHANGEABLE
Lamp,incandescent
5996-00-267-1139 INTERCHANGEABLE
Amplifier,radio Frequency
5325-00-301-865616750481-007 INTERCHANGEABLE
Grommet,nonmetallic
Sypris Electronics, Llc Div Sypris Electronics, Llc - Colorado Field Services
3460-00-322-5950B74.2 TY2 C60H12V 6X1-1/8X1-1/4 INTERCHANGEABLE
Wheel,abrasive
American National Standards Institute Incorporated Dba American National Standards Institute
2520-00-563-82311661 INTERCHANGEABLE
Sleeve
Atwood Industries Inc Automotive Div
5930-00-615-81951661 INTERCHANGEABLE
Switch
Illinois Tool Works, Inc. Div Magnaflux
5950-00-646-3603 INTERCHANGEABLE
Transformer,audio Frequency
2520-00-962-2966CA1647 INTERCHANGEABLE
Pressure Plate Assembly,clutch
Perfection Clutch
5855-01-072-88841661 INTERCHANGEABLE
Insert Lens Rotatin
Grimes Aerospace Company
5950-01-096-43331661 INTERCHANGEABLE
Coil
Crown Audio, Inc. Dba Crown International
Cross-Reference Index
Part NumberManufacturer
1-661 PRIMARY Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia (USA)
2206 Superior Dental & Surgical Manufacturing Co Inc Div Superior Dental & Surgical Manufacturing (USA)
Related Parts
6240-00-155-7958INTERCHANGEABLE
LAMP,INCANDESCENT
5996-00-267-1139INTERCHANGEABLE
AMPLIFIER,RADIO FREQUENCY
5325-00-301-8656INTERCHANGEABLE
GROMMET,NONMETALLIC
16750481-007
3460-00-322-5950INTERCHANGEABLE
WHEEL,ABRASIVE
B74.2 TY2 C60H12V 6X1-1/8X1-1/4
2520-00-563-8231INTERCHANGEABLE
SLEEVE
1661
5930-00-615-8195INTERCHANGEABLE
SWITCH
1661
5950-00-646-3603INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
2520-00-962-2966INTERCHANGEABLE
PRESSURE PLATE ASSEMBLY,CLUTCH
CA1647
5855-01-072-8884INTERCHANGEABLE
INSERT LENS ROTATIN
1661
5950-01-096-4333INTERCHANGEABLE
COIL
1661
4220-01-153-2123INTERCHANGEABLE
JACKET,BUOYANCY AID
1661
5340-01-360-9252INTERCHANGEABLE
HANDLE,BOW

Frequently Asked Questions

What is NSN 6520-01-120-2653?

NSN 6520-01-120-2653 is a Impression Tray,dental, manufactured by Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia, classified under FSC 6520 (No Item Name Available). Status: active.

What are the part numbers for NSN 6520-01-120-2653?

NSN 6520-01-120-2653 has 2 cross-referenced part numbers: 1-661 (Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia), 2206 (Superior Dental & Surgical Manufacturing Co Inc Div Superior Dental & Surgical Manufacturing).

What NSN replaces 6520-01-120-2653?

There are 12 known substitutes for 6520-01-120-2653: 6240-00-155-7958, 5996-00-267-1139, 5325-00-301-8656 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1-661?

Key specifications for 1-661: Hydrocolloid Usage Feature: INCLUDED; Material: COPPER ALLOY AND NICKEL AND CHROMIUM; Size Designation: X-LARGE; Rim Locking Feature: PROVIDED. 9 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