PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

26800179Ring,externally Threaded

Optex Systems, Inc · NSN 5365-00-364-9676 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-00-364-9676 — this item is cataloged by the U.S. Government under National Stock Number 5365-00-364-9676. Primary manufacturer part number: 26800179.
Features
  • Ring,externally Threaded — FSC 5365
  • Thread Size: 1.625-32
  • Beveled Thread: INCLUDED
  • Bore Annular Internal Serration: NOT INCLUDED
  • Accommodation Type and Quantity: 2 SLOTS
  • Setscrew Locking Notch: NOT INCLUDED
  • Angle Between Accommodations in Deg: 180.0
  • Thread Location: BOTH ENDS
Applications
  • Applications requiring Aluminum Alloy 6061 construction
General Description

The Ring,externally Threaded, cataloged under National Stock Number 5365-00-364-9676, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Optex Systems, Inc. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5365-00-364-9676
Primary Part Number26800179
Item NameRing,externally Threaded
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerOptex Systems, Inc
StatusCANCELLED
Thread Size1.625-32
Beveled ThreadINCLUDED
Bore Annular Internal SerrationNOT INCLUDED
Accommodation Type and Quantity2 SLOTS
Setscrew Locking NotchNOT INCLUDED
Angle Between Accommodations in Deg180.0
Thread LocationBOTH ENDS
MaterialALUMINUM ALLOY 6061
Material Document and ClassificationWW-T-700, T6 FED SPEC SINGLE MATERIAL RESPONSE
Surface TreatmentANODIZE
Thread DirectionRIGHT-HAND
Depth0.031 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
Casehardening IndicatorNOT CASEHARDENED
Drive TypeSLOTTED FACE
Bore ShapeSTRAIGHT
Width0.047 INCHES NOMINAL IN
Thread Pitch Diameters+1.600 TO 1.604 INCHES IN
Screw Thread Series DesignatorUNS
Bore Diameter1.420 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5305-00-050-9229 INTERCHANGEABLE
Screw,machine
Cross-Reference Index
Part NumberManufacturer
26800179 PRIMARY Optex Systems, Inc (USA)
26800179 L3 Technologies, Inc. Dba Insight Technology Division Div Insight Technology Division (USA)
314010-3 Northrop Grumman Corp Electronic Systems Defensive System Div (USA)
Related Parts
5305-00-050-9229INTERCHANGEABLE
SCREW,MACHINE

Frequently Asked Questions

What is NSN 5365-00-364-9676?

NSN 5365-00-364-9676 is a Ring,externally Threaded, manufactured by Optex Systems, Inc, classified under FSC 5365 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5365-00-364-9676?

NSN 5365-00-364-9676 has 3 cross-referenced part numbers: 26800179 (Optex Systems, Inc), 26800179 (L3 Technologies, Inc. Dba Insight Technology Division Div Insight Technology Division), 314010-3 (Northrop Grumman Corp Electronic Systems Defensive System Div).

What NSN replaces 5365-00-364-9676?

There is 1 known substitute for 5365-00-364-9676: 5305-00-050-9229. Verify interchangeability with system specifications before substitution.

What are the specifications of 26800179?

Key specifications for 26800179: Thread Size: 1.625-32; Beveled Thread: INCLUDED; Bore Annular Internal Serration: NOT INCLUDED; Accommodation Type and Quantity: 2 SLOTS. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5365-00-364-9676 still in active supply?

NSN 5365-00-364-9676 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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