PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-3390Ring,dee

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5365-01-438-2640 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-01-438-2640 — this item is cataloged by the U.S. Government under National Stock Number 5365-01-438-2640. Primary manufacturer part number: MIL-DTL-3390.
Features
  • Ring,dee — FSC 5365
  • Fabrication Method: CAST
  • Inside Width: 1.000 INCHES NOMINAL IN
  • Material: PLASTIC POLYAMIDE NYLON
  • Inside Height: 0.875 INCHES NOMINAL IN
  • Straight Side Form: NONROLLER
  • Stock Size: .192 IN. DIA IN
  • 4 verified cross-references
Applications
  • Applications requiring Plastic Polyamide Nylon construction
General Description

The Ring,dee, cataloged under National Stock Number 5365-01-438-2640, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5365-01-438-2640
Primary Part NumberMIL-DTL-3390
Item NameRing,dee
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Fabrication MethodCAST
Inside Width1.000 INCHES NOMINAL IN
MaterialPLASTIC POLYAMIDE NYLON
Inside Height0.875 INCHES NOMINAL IN
Straight Side FormNONROLLER
Stock Size.192 IN. DIA IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5365-00-127-7449 INTERCHANGEABLE
Ring,dee
5110-00-239-77485110-00-239-7748 INTERCHANGEABLE
File,hand
General Services Administration Federal Supply Service
5365-00-260-1414 INTERCHANGEABLE
Ring,dee
5365-00-260-5663 INTERCHANGEABLE
Ring,dee
5306-00-285-123914450A INTERCHANGEABLE
Bolt,externally Relieved Body
Brinkley Technology Group Llc Dba Hercules Manufacturing
2520-00-311-160641053V INTERCHANGEABLE
Retainer,main Trasf
Navistar Intl Corp Truck Br Ohio Plant
4310-00-799-6038 INTERCHANGEABLE
Repair Kit,valve Ni
5962-01-177-073541454 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-3390 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-R-3390 CL5-1IN Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
4-1-454 W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center (USA)
MIL-DTL-3390 CONFX STL1 CL5 1IN. Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5365-00-127-7449INTERCHANGEABLE
RING,DEE
5110-00-239-7748INTERCHANGEABLE
FILE,HAND
5110-00-239-7748
5365-00-260-1414INTERCHANGEABLE
RING,DEE
5365-00-260-5663INTERCHANGEABLE
RING,DEE
5306-00-285-1239INTERCHANGEABLE
BOLT,EXTERNALLY RELIEVED BODY
14450A
2520-00-311-1606INTERCHANGEABLE
RETAINER,MAIN TRASF
41053V
4310-00-799-6038INTERCHANGEABLE
REPAIR KIT,VALVE NI
5962-01-177-0735INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
41454

Frequently Asked Questions

What is NSN 5365-01-438-2640?

NSN 5365-01-438-2640 is a Ring,dee, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5365 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5365-01-438-2640?

NSN 5365-01-438-2640 has 4 cross-referenced part numbers: MIL-DTL-3390 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-R-3390 CL5-1IN (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 4-1-454 (W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center), MIL-DTL-3390 CONFX STL1 CL5 1IN. (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5365-01-438-2640?

There are 8 known substitutes for 5365-01-438-2640: 5365-00-127-7449, 5110-00-239-7748, 5365-00-260-1414 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-3390?

Key specifications for MIL-DTL-3390: Fabrication Method: CAST; Inside Width: 1.000 INCHES NOMINAL IN; Material: PLASTIC POLYAMIDE NYLON; Inside Height: 0.875 INCHES NOMINAL IN. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5365-01-438-2640 still in active supply?

NSN 5365-01-438-2640 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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