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PartsTable / COMPONENT / M639
M639 ✓ 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

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include material: STEEL OVERALL, overall_height: 1.625 INCHES NOMINAL IN, outside_diameter: 2.687 INCHES NOMINAL IN, special_features: SWITCH MOMENTARY, 12 VDC VDC, style_designator: TUBE TYPE, surface_treatment: PAINT OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2590-00-414-5619, 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
M639
NSN: 2590-00-414-5619
FSC: 2590
CAGE: U2621 — MARINE & INDUSTRIAL TRANSMISSIONS LTD (GBR)
SPECIFICATIONS
materialSTEEL OVERALL
overall_height1.625 INCHES NOMINAL IN
outside_diameter2.687 INCHES NOMINAL IN
special_featuresSWITCH MOMENTARY, 12 VDC VDC
style_designatorTUBE TYPE
surface_treatmentPAINT OVERALL
accommodation_typePLAIN END GRIPPING
system_for_which_designedNONPRESSURIZED
filler_neck_diameter_for_which_designed1.492 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyPUSH BUTTON SWITCH, N.C.
NSN2590-00-414-5619
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CONNECTOR,RECEPTACLE,ELECTRICAL TITLE COMPONENT PN M639 MFR CONNECTOR,RECEPTACLE,E
KEY FEATURES
•
SYSTEM FOR WHICH DESIGNED: NONPRESSURIZED
•
SURFACE TREATMENT: PAINT OVERALL
•
OUTSIDE DIAMETER: 2.687 INCHES NOMINAL IN
•
STYLE DESIGNATOR: TUBE TYPE
•
ACCOMMODATION TYPE: PLAIN END GRIPPING
•
FILLER NECK DIAMETER FOR WHICH DESIGNED: 1.492 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT1.625 INCHES NOMINAL IN
SYSTEM FOR WHICH DESIGNEDNONPRESSURIZED
SURFACE TREATMENTPAINT OVERALL
OUTSIDE DIAMETER2.687 INCHES NOMINAL IN
STYLE DESIGNATORTUBE TYPE
ACCOMMODATION TYPEPLAIN END GRIPPING
FILLER NECK DIAMETER FOR WHICH DESIGNED1.492 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
AONI-183Interchangeable
interchangeable cross-reference
interchangeable
647Interchangeable
interchangeable cross-reference
interchangeable
1129844Interchangeable
interchangeable cross-reference
interchangeable
LD282803Interchangeable
interchangeable cross-reference
interchangeable
1377-M845Interchangeable
interchangeable cross-reference
interchangeable
LTX67Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M639?
M639 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace M639?
There are 19 known substitutes for M639: AONI-183, 647, 1129844 and 16 more. Substitute compatibility should be verified for your specific system.
Is M639 still available?
M639 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026