PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-A-21165Adapter,quick Discounnect

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 1680-01-197-4940 · FSC 1680 · No Item Name Available
Verified by PartsTable
NSN 1680-01-197-4940 — this item is cataloged by the U.S. Government under National Stock Number 1680-01-197-4940. Primary manufacturer part number: MIL-A-21165.
Features
  • Adapter,quick Discounnect — FSC 1680
  • General Characteristics Item Description: 2.156 IN. H; 0.864 IN. MIN AND 0.867 IN. MAX DIA; WITHOUT MOUNTING HOLE IN
  • 2 verified cross-references
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Adapter,quick Discounnect, cataloged under National Stock Number 1680-01-197-4940, is classified within Federal Supply Class 1680 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 1 verified specification, 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1680-01-197-4940
Primary Part NumberMIL-A-21165
Item NameAdapter,quick Discounnect
FSC / FSG1680 / 16 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
General Characteristics Item Description2.156 IN. H; 0.864 IN. MIN AND 0.867 IN. MAX DIA; WITHOUT MOUNTING HOLE IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
1680-00-164-6690 INTERCHANGEABLE
Adapter,quick Disconnect,seat
1680-00-592-4878 INTERCHANGEABLE
Adapter Quick Disconnect Passeng
1680-00-592-4879 INTERCHANGEABLE
Adapter,quick Disconnect,seat
Cross-Reference Index
Part NumberManufacturer
MIL-A-21165 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS22034-3B Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
1680-00-164-6690INTERCHANGEABLE
ADAPTER,QUICK DISCONNECT,SEAT
1680-00-592-4878INTERCHANGEABLE
ADAPTER QUICK DISCONNECT PASSENG
1680-00-592-4879INTERCHANGEABLE
ADAPTER,QUICK DISCONNECT,SEAT

Frequently Asked Questions

What is NSN 1680-01-197-4940?

NSN 1680-01-197-4940 is a Adapter,quick Discounnect, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 1680 (No Item Name Available). Status: active.

What are the part numbers for NSN 1680-01-197-4940?

NSN 1680-01-197-4940 has 2 cross-referenced part numbers: MIL-A-21165 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS22034-3B (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 1680-01-197-4940?

There are 3 known substitutes for 1680-01-197-4940: 1680-00-164-6690, 1680-00-592-4878, 1680-00-592-4879. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-A-21165?

Key specifications for MIL-A-21165: General Characteristics Item Description: 2.156 IN. H; 0.864 IN. MIN AND 0.867 IN. MAX DIA; WITHOUT MOUNTING HOLE IN. 1 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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