PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MD-2Belt,aircraft Safety

Aerial Machine & Tool Corporation · NSN 1680-00-516-6543 · FSC 1680 · No Item Name Available
Verified by PartsTable
NSN 1680-00-516-6543 — this item is cataloged by the U.S. Government under National Stock Number 1680-00-516-6543. Primary manufacturer part number: MD-2.
Features
  • Belt,aircraft Safety — FSC 1680
  • Personnel Capacity: 1
  • Webbing Width: 3.000 INCHES NOMINAL IN
  • Adjustability: ADJUSTABLE
  • Fastener Material and Location: STEEL BUCKLE
  • FSC Application Data: AIRCRAFT ACCESSORY EQUIPMENT
  • 9 verified cross-references
  • Primary manufacturer: Aerial Machine & Tool Corporation
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Belt,aircraft Safety, cataloged under National Stock Number 1680-00-516-6543, is classified within Federal Supply Class 1680 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Aerial Machine & Tool Corporation. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN1680-00-516-6543
Primary Part NumberMD-2
Item NameBelt,aircraft Safety
FSC / FSG1680 / 16 — No Item Name Available
ManufacturerAerial Machine & Tool Corporation
StatusCANCELLED
Personnel Capacity1
Webbing Width3.000 INCHES NOMINAL IN
AdjustabilityADJUSTABLE
Fastener Material and LocationSTEEL BUCKLE
FSC Application DataAIRCRAFT ACCESSORY EQUIPMENT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5841-00-623-9525MD2 INTERCHANGEABLE
Feeder Divisional L
Lubriquip Inc Dba Lubriquip, Inc., a Unit of Idex
3010-01-046-5760 INTERCHANGEABLE
Actuator,electromechanical,rotar
6615-01-065-72262586333-3 INTERCHANGEABLE
Gyroscope,displacement
Honeywell International Inc. Dba Honeywell International
7045-01-144-8447 INTERCHANGEABLE
Disk,flexible
1680-01-225-745254H19651-30 INTERCHANGEABLE
Belt,aircraft Safety
Bell Textron Inc
5998-01-372-128919351 INTERCHANGEABLE
Circuit Card Assembly
Versitron Inc
5340-01-437-1116MD-2 INTERCHANGEABLE
Handle,extension
Testrite Instrument Co Inc
Cross-Reference Index
Part NumberManufacturer
MD-2 Aerial Machine & Tool Corporation (USA)
54H19651 Aeronautical and Support Equipment Type/asetds/aflcmc/ezsc (USA)
MD-2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
1680PL1639435 Jednolity Indeks Materialowy - Uniform Material Index (POL)
54H19651 San Antonio Air Logistics Center (USA)
MIL-B-83787 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
54H19651 Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
54H19651 Department of the Air Force (USA)
MD-2 Department of the Air Force (USA)
Related Parts
5841-00-623-9525INTERCHANGEABLE
FEEDER DIVISIONAL L
MD2
3010-01-046-5760INTERCHANGEABLE
ACTUATOR,ELECTROMECHANICAL,ROTAR
6615-01-065-7226INTERCHANGEABLE
GYROSCOPE,DISPLACEMENT
2586333-3
7045-01-144-8447INTERCHANGEABLE
DISK,FLEXIBLE
1680-01-225-7452INTERCHANGEABLE
BELT,AIRCRAFT SAFETY
54H19651-30
5998-01-372-1289INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
19351
5340-01-437-1116INTERCHANGEABLE
HANDLE,EXTENSION
MD-2

Frequently Asked Questions

What is NSN 1680-00-516-6543?

NSN 1680-00-516-6543 is a Belt,aircraft Safety, manufactured by Aerial Machine & Tool Corporation, classified under FSC 1680 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 1680-00-516-6543?

NSN 1680-00-516-6543 has 9 cross-referenced part numbers: MD-2 (Aerial Machine & Tool Corporation), 54H19651 (Aeronautical and Support Equipment Type/asetds/aflcmc/ezsc), MD-2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 1680PL1639435 (Jednolity Indeks Materialowy - Uniform Material Index), 54H19651 (San Antonio Air Logistics Center) and 4 more.

What NSN replaces 1680-00-516-6543?

There are 7 known substitutes for 1680-00-516-6543: 5841-00-623-9525, 3010-01-046-5760, 6615-01-065-7226 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MD-2?

Key specifications for MD-2: Personnel Capacity: 1; Webbing Width: 3.000 INCHES NOMINAL IN; Adjustability: ADJUSTABLE; Fastener Material and Location: STEEL BUCKLE. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 1680-00-516-6543 still in active supply?

NSN 1680-00-516-6543 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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