PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AN6506-1CBelt,aircraft Safety

Aeronautical Standards Group Dept of Navy and Air Force · NSN 1680-00-516-6550 · FSC 1680 · No Item Name Available
Verified by PartsTable
NSN 1680-00-516-6550 — this item is cataloged by the U.S. Government under National Stock Number 1680-00-516-6550. Primary manufacturer part number: AN6506-1C.
Features
  • Belt,aircraft Safety — FSC 1680
  • Personnel Capacity: 1
  • Fastener Material and Location: STEEL BUCKLE
  • Adjustment Maximum Length: 56.000 INCHES IN
  • Webbing Width: 1.750 INCHES NOMINAL IN
  • Adjustability: ADJUSTABLE
  • Nondefinitive Spec/std Data: ASS 1,TYPE 1 CLASS
  • 4 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Belt,aircraft Safety, cataloged under National Stock Number 1680-00-516-6550, is classified within Federal Supply Class 1680 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Aeronautical Standards Group Dept of Navy and Air Force. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN1680-00-516-6550
Primary Part NumberAN6506-1C
Item NameBelt,aircraft Safety
FSC / FSG1680 / 16 — No Item Name Available
ManufacturerAeronautical Standards Group Dept of Navy and Air Force
StatusCANCELLED
Personnel Capacity1
Fastener Material and LocationSTEEL BUCKLE
Adjustment Maximum Length56.000 INCHES IN
Webbing Width1.750 INCHES NOMINAL IN
AdjustabilityADJUSTABLE
Nondefinitive Spec/std DataASS 1,TYPE 1 CLASS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
1680-00-407-5335 INTERCHANGEABLE
Belt,aircraft Safety
1680-00-408-9781 INTERCHANGEABLE
Belt,aircraft Safety
1680-00-516-800062A126D1-1 INTERCHANGEABLE
Harness,aircraft Safety,shoulder
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
1680-01-098-5744 INTERCHANGEABLE
Belt,aircraft Safety
1680-01-133-9975 INTERCHANGEABLE
Belt,aircraft Safety
Cross-Reference Index
Part NumberManufacturer
AN6506-1C Aeronautical Standards Group Dept of Navy and Air Force (USA)
44G26451 Department of the Air Force (USA)
MILB6703 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-R-81729 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
1680-00-407-5335INTERCHANGEABLE
BELT,AIRCRAFT SAFETY
1680-00-408-9781INTERCHANGEABLE
BELT,AIRCRAFT SAFETY
1680-00-516-8000INTERCHANGEABLE
HARNESS,AIRCRAFT SAFETY,SHOULDER
62A126D1-1
1680-01-098-5744INTERCHANGEABLE
BELT,AIRCRAFT SAFETY
1680-01-133-9975INTERCHANGEABLE
BELT,AIRCRAFT SAFETY

Frequently Asked Questions

What is NSN 1680-00-516-6550?

NSN 1680-00-516-6550 is a Belt,aircraft Safety, manufactured by Aeronautical Standards Group Dept of Navy and Air Force, classified under FSC 1680 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 1680-00-516-6550?

NSN 1680-00-516-6550 has 4 cross-referenced part numbers: AN6506-1C (Aeronautical Standards Group Dept of Navy and Air Force), 44G26451 (Department of the Air Force), MILB6703 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-R-81729 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 1680-00-516-6550?

There are 5 known substitutes for 1680-00-516-6550: 1680-00-407-5335, 1680-00-408-9781, 1680-00-516-8000 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AN6506-1C?

Key specifications for AN6506-1C: Personnel Capacity: 1; Fastener Material and Location: STEEL BUCKLE; Adjustment Maximum Length: 56.000 INCHES IN; Webbing Width: 1.750 INCHES NOMINAL IN. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 1680-00-516-6550 still in active supply?

NSN 1680-00-516-6550 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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