PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

105221Ring,externally Threaded

Air Logistics Corporation Dba Air Logistics Corp · NSN 5365-00-820-7658 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-00-820-7658 — this item is cataloged by the U.S. Government under National Stock Number 5365-00-820-7658. Primary manufacturer part number: 105221.
Features
  • Ring,externally Threaded — FSC 5365
  • Thread Class: 2A A
  • Screw Thread Series Designator: UNEF
  • Accommodation Type and Quantity: 2 SLOTS
  • Bore Annular Internal Serration: NOT INCLUDED
  • Material Hardness Rating: 27.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM
  • Surface Treatment: CADMIUM
  • Material: STEEL COMP 4130
Applications
  • Applications requiring Steel Comp 4130 construction
General Description

The Ring,externally Threaded, cataloged under National Stock Number 5365-00-820-7658, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Air Logistics Corporation Dba Air Logistics Corp. Government technical data includes 22 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5365-00-820-7658
Primary Part Number105221
Item NameRing,externally Threaded
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerAir Logistics Corporation Dba Air Logistics Corp
StatusACTIVE
Thread Class2A A
Screw Thread Series DesignatorUNEF
Accommodation Type and Quantity2 SLOTS
Bore Annular Internal SerrationNOT INCLUDED
Material Hardness Rating27.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM
Surface TreatmentCADMIUM
MaterialSTEEL COMP 4130
Beveled ThreadNOT INCLUDED
Bore Diameter0.938 INCHES NOMINAL IN
Drive TypeSLOTTED FACE
Thread Size1.188-18
Setscrew Locking NotchNOT INCLUDED
Angle Between Accommodations in Deg180.0
Bore ShapeSTRAIGHT
Bore Edge ProcessCHAMFERED
Thread DirectionRIGHT-HAND
Depth0.150 INCHES NOMINAL IN
Chamfer Length0.075 INCHES NOMINAL IN
Chamfer Angle in Deg45.0
Process End LocationBOTH ENDS
Casehardening IndicatorNOT CASEHARDENED
Width0.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5910-00-103-1700066600414A0 102K INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
Erie Specialty Products Inc
5999-00-193-2815105221 INTERCHANGEABLE
Contact,electrical
Lucent Technologies Inc Corporate Headquarters
5935-00-201-9490PU116AU INTERCHANGEABLE
Jack,tip
Joint Electronics Type Designation System
4730-00-240-1678 INTERCHANGEABLE
Union,pipe
5998-00-476-1133105221 INTERCHANGEABLE
Printed Wiring Board
The Aeronautical Instrument and Radio Company Dba the Aeronautical Instrument and Radio Company Div the Aeronautical Instrument and
5945-00-827-3699IR1215GC24 INTERCHANGEABLE
Relay,electromagnetic
Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co
3020-01-520-7911105221 INTERCHANGEABLE
Pulley,flat
Carl Stahl Sava Industries, Inc.
Cross-Reference Index
Part NumberManufacturer
G-105221 Airbus Helicopters Deutschland Gmbh (DEU)
105221 PRIMARY Air Logistics Corporation Dba Air Logistics Corp (USA)
Related Parts
5910-00-103-1700INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
066600414A0 102K
5999-00-193-2815INTERCHANGEABLE
CONTACT,ELECTRICAL
105221
5935-00-201-9490INTERCHANGEABLE
JACK,TIP
PU116AU
4730-00-240-1678INTERCHANGEABLE
UNION,PIPE
5998-00-476-1133INTERCHANGEABLE
PRINTED WIRING BOARD
105221
5945-00-827-3699INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
IR1215GC24
3020-01-520-7911INTERCHANGEABLE
PULLEY,FLAT
105221

Frequently Asked Questions

What is NSN 5365-00-820-7658?

NSN 5365-00-820-7658 is a Ring,externally Threaded, manufactured by Air Logistics Corporation Dba Air Logistics Corp, classified under FSC 5365 (No Item Name Available). Status: active.

What are the part numbers for NSN 5365-00-820-7658?

NSN 5365-00-820-7658 has 2 cross-referenced part numbers: G-105221 (Airbus Helicopters Deutschland Gmbh), 105221 (Air Logistics Corporation Dba Air Logistics Corp).

What NSN replaces 5365-00-820-7658?

There are 7 known substitutes for 5365-00-820-7658: 5910-00-103-1700, 5999-00-193-2815, 5935-00-201-9490 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 105221?

Key specifications for 105221: Thread Class: 2A A; Screw Thread Series Designator: UNEF; Accommodation Type and Quantity: 2 SLOTS; Bore Annular Internal Serration: NOT INCLUDED. 23 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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