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Technical Data Sheet
PartsTable / COMPONENT / MIL-R-3390
MIL-R-3390 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The RING,DEE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 260 OR COPPER ALLOY 268 OR COPPER ALLOY 270 OR COPPER ALLOY 854, stock_size: OVAL SHAPED,0.156 IN. W,0.219 IN.

LG IN, inside_width: 0.844 INCHES NOMINAL IN, inside_height: 1.000 INCHES NOMINAL IN, surface_treatment: OXIDE, fabrication_method: CAST. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5365-00-260-1412, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MIL-R-3390
NSN: 5365-00-260-1412
FSC: 5365
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialCOPPER ALLOY 260 OR COPPER ALLOY 268 OR COPPER ALLOY 270 OR COPPER ALLOY 854
stock_sizeOVAL SHAPED,0.156 IN. W,0.219 IN. LG IN
inside_width0.844 INCHES NOMINAL IN
inside_height1.000 INCHES NOMINAL IN
surface_treatmentOXIDE
fabrication_methodCAST
straight_side_formNONROLLER
nondefinitive_spec/std_data1 CLASS AND E SHAPE
surface_treatment_document_and_classificationMIL-F-495 MIL SPEC SINGLE TREATMENT RESPONSE
NSN5365-00-260-1412
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,DEE TITLE COMPONENT PN MIL-R-3390 MFR RING,DEE
KEY FEATURES
•
NONDEFINITIVE SPEC/STD DATA: ASS 1, FIG A 1/8D CLASS
•
STRAIGHT SIDE FORM: NONROLLER
•
INSIDE WIDTH: 0.700 INCHES NOMINAL IN
•
INSIDE HEIGHT: 0.380 INCHES NOMINAL IN
•
FABRICATION METHOD: CAST
•
SURFACE TREATMENT: COPPER ALLOY
•
MATERIAL: COPPER ALLOY
•
STOCK SIZE: 0.125 IN. DIA IN
TECHNICAL CHARACTERISTICS (FLIS)
NONDEFINITIVE SPEC/STD DATAASS 1, FIG A 1/8D CLASS
STRAIGHT SIDE FORMNONROLLER
INSIDE WIDTH0.700 INCHES NOMINAL IN
INSIDE HEIGHT0.380 INCHES NOMINAL IN
FABRICATION METHODCAST
SURFACE TREATMENTCOPPER ALLOY
MATERIALCOPPER ALLOY
STOCK SIZE0.125 IN. DIA IN
MOUNTING METHODSTRAP(S)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
MIL-R-3390 CLASS 1 CONFIG KInterchangeable
interchangeable cross-reference
interchangeable
MILR3390Interchangeable
interchangeable cross-reference
interchangeable
4-1-454Interchangeable
interchangeable cross-reference
interchangeable
CLASS 1, CONFIG X, STYLE 1Interchangeable
interchangeable cross-reference
interchangeable
M3390-CL 2, CON K, 0.162 DIAInterchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-3390Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-R-3390?
MIL-R-3390 is a RING,DEE.
What parts can replace MIL-R-3390?
There are 10 known substitutes for MIL-R-3390: MIL-R-3390 CLASS 1 CONFIG K, MILR3390, 4-1-454 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-R-3390?
MIL-R-3390 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5365-00-260-1412. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026