PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

400012Tail Spring for Amalgamator

Dentsply Sirona Inc. Dba Dentsply Caulk Div Caulk Division · NSN 6520-01-514-6644 · FSC 6520 · No Item Name Available
Verified by PartsTable
NSN 6520-01-514-6644 — this item is cataloged by the U.S. Government under National Stock Number 6520-01-514-6644. Primary manufacturer part number: 400012.
Features
  • Tail Spring for Amalgamator — FSC 6520
  • 2 verified cross-references
  • Primary manufacturer: Dentsply Sirona Inc. Dba Dentsply Caulk Div Caulk Division
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
General Description

The Tail Spring for Amalgamator, cataloged under National Stock Number 6520-01-514-6644, 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 Dentsply Sirona Inc. Dba Dentsply Caulk Div Caulk Division. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6520-01-514-6644
Primary Part Number400012
Item NameTail Spring for Amalgamator
FSC / FSG6520 / 65 — No Item Name Available
ManufacturerDentsply Sirona Inc. Dba Dentsply Caulk Div Caulk Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 7
5306-00-151-1417 INTERCHANGEABLE
Bolt,machine
5331-01-155-1783 INTERCHANGEABLE
O-Ring
3120-01-474-9326 INTERCHANGEABLE
Bushing,sleeve
4130-01-568-2838400012 INTERCHANGEABLE
Cooler Unit,air
Space-More Corp
5331-01-613-01804000-12 INTERCHANGEABLE
O-Ring
Brennan Industries
5331-01-669-24384076 INTERCHANGEABLE
O-Ring
Buffalo Turbine Defense Llc
5995-01-675-5867400012 INTERCHANGEABLE
Case,cable Assembly
Pathfinder Digital Llc
Cross-Reference Index
Part NumberManufacturer
400012 PRIMARY Dentsply Sirona Inc. Dba Dentsply Caulk Div Caulk Division (USA)
LL-H52-8871 Naval Medical Material Support Command Detachment (USA)
Related Parts
5306-00-151-1417INTERCHANGEABLE
BOLT,MACHINE
5331-01-155-1783INTERCHANGEABLE
O-RING
3120-01-474-9326INTERCHANGEABLE
BUSHING,SLEEVE
4130-01-568-2838INTERCHANGEABLE
COOLER UNIT,AIR
400012
5331-01-613-0180INTERCHANGEABLE
O-RING
4000-12
5331-01-669-2438INTERCHANGEABLE
O-RING
4076
5995-01-675-5867INTERCHANGEABLE
CASE,CABLE ASSEMBLY
400012

Frequently Asked Questions

What is NSN 6520-01-514-6644?

NSN 6520-01-514-6644 is a Tail Spring for Amalgamator, manufactured by Dentsply Sirona Inc. Dba Dentsply Caulk Div Caulk Division, classified under FSC 6520 (No Item Name Available). Status: active.

What are the part numbers for NSN 6520-01-514-6644?

NSN 6520-01-514-6644 has 2 cross-referenced part numbers: 400012 (Dentsply Sirona Inc. Dba Dentsply Caulk Div Caulk Division), LL-H52-8871 (Naval Medical Material Support Command Detachment).

What NSN replaces 6520-01-514-6644?

There are 7 known substitutes for 6520-01-514-6644: 5306-00-151-1417, 5331-01-155-1783, 3120-01-474-9326 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 400012?

Key specifications for 400012: End Item Identification: AMALGAMATOR UNIT MODEL 400; Part Name Assigned by Controlling Agency: TAIL SPRING FOR AMALGAMATOR UNIT MODEL 400 EA. 2 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