PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1-665Impression Tray,dental

Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia · NSN 6520-01-120-2657 · FSC 6520 · No Item Name Available
Verified by PartsTable
NSN 6520-01-120-2657 — this item is cataloged by the U.S. Government under National Stock Number 6520-01-120-2657. Primary manufacturer part number: 1-665.
Features
  • Impression Tray,dental — FSC 6520
  • Material: COPPER ALLOY AND NICKEL AND CHROMIUM
  • Hydrocolloid Usage Feature: INCLUDED
  • Unit Type: DENTULOUS
  • Handle Type: INTEGRAL
  • Rim Locking Feature: PROVIDED
  • Cooling Type: WATER
  • Jaw for Which Designed: UPPER
Applications
  • Applications requiring Copper Alloy and Nickel and Chromium construction
General Description

The Impression Tray,dental, cataloged under National Stock Number 6520-01-120-2657, 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
NSN6520-01-120-2657
Primary Part Number1-665
Item NameImpression Tray,dental
FSC / FSG6520 / 65 — No Item Name Available
ManufacturerDefense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia
StatusACTIVE
MaterialCOPPER ALLOY AND NICKEL AND CHROMIUM
Hydrocolloid Usage FeatureINCLUDED
Unit TypeDENTULOUS
Handle TypeINTEGRAL
Rim Locking FeaturePROVIDED
Cooling TypeWATER
Jaw for Which DesignedUPPER
Size DesignationX-LARGE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
6240-00-241-9703CM1665 INTERCHANGEABLE
Lamp,incandescent
Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron
5905-00-259-3935 INTERCHANGEABLE
Resistor,variable,wire Wound,non
5330-00-285-4841 INTERCHANGEABLE
Seal,plain Encased
5310-00-638-84291665 INTERCHANGEABLE
Nut,plain,round
Microwave Engineering Corporation
3040-00-842-6098 INTERCHANGEABLE
Cylinder Assembly,actuating,line
5950-00-945-66711665 INTERCHANGEABLE
Coil,radio Frequency
American Precision Industries Inc.
5945-00-967-3616 INTERCHANGEABLE
Solenoid,electrical
4820-01-273-371420232-2 PL1841 INTERCHANGEABLE
Cap,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-273-373120229-2 PL1841 INTERCHANGEABLE
Guide,valve Stem
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-284-487320-1.50IN SET 64PSI INTERCHANGEABLE
Valve,safety Relief
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
Cross-Reference Index
Part NumberManufacturer
1-665 PRIMARY Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia (USA)
2202 Superior Dental & Surgical Manufacturing Co Inc Div Superior Dental & Surgical Manufacturing (USA)
Related Parts
6240-00-241-9703INTERCHANGEABLE
LAMP,INCANDESCENT
CM1665
5905-00-259-3935INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
5330-00-285-4841INTERCHANGEABLE
SEAL,PLAIN ENCASED
5310-00-638-8429INTERCHANGEABLE
NUT,PLAIN,ROUND
1665
3040-00-842-6098INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
5950-00-945-6671INTERCHANGEABLE
COIL,RADIO FREQUENCY
1665
5945-00-967-3616INTERCHANGEABLE
SOLENOID,ELECTRICAL
4820-01-273-3714INTERCHANGEABLE
CAP,VALVE
20232-2 PL1841
4820-01-273-3731INTERCHANGEABLE
GUIDE,VALVE STEM
20229-2 PL1841
4820-01-284-4873INTERCHANGEABLE
VALVE,SAFETY RELIEF
20-1.50IN SET 64PSI
5342-01-307-1920INTERCHANGEABLE
GUIDE,CLUTCH
1665
6150-01-350-0970INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
1665

Frequently Asked Questions

What is NSN 6520-01-120-2657?

NSN 6520-01-120-2657 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 6520-01-120-2657?

NSN 6520-01-120-2657 has 2 cross-referenced part numbers: 1-665 (Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia), 2202 (Superior Dental & Surgical Manufacturing Co Inc Div Superior Dental & Surgical Manufacturing).

What NSN replaces 6520-01-120-2657?

There are 12 known substitutes for 6520-01-120-2657: 6240-00-241-9703, 5905-00-259-3935, 5330-00-285-4841 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1-665?

Key specifications for 1-665: Part Name Assigned by Controlling Agency: IMPRESSION TRAY DENTAL DENTULOUS UPPER EXTRA-LARGE; Material: COPPER ALLOY AND NICKEL AND CHROMIUM; Hydrocolloid Usage Feature: INCLUDED; Unit Type: DENTULOUS. 9 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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