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10-405991-209 — BACKSHELL,ELECTRICAL CONNECTOR

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

10-405991-209: BACKSHELL,ELECTRICAL CONNECTOR.

The BACKSHELL,ELECTRICAL CONNECTOR is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, thread_class: 2B, overall_length: 0.574 INCHES MINIMUM AND 0.595 INCHES MAXIMUM IN, overall_diameter: 1.322 INCHES MAXIMUM IN, size_designation: 20 AND 21, style_designator: R.F. THREADED.

This part is cataloged in the U.S. Government catalog under NSN 5935-01-258-7449, 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
10-405991-209
NSN: 5935-01-258-7449
FSC: 5935 — Connectors, Electrical
CAGE: 77820 — AMPHENOL CORP DIV AMPHENOL AEROSPACE OPERATIONS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
thread_class2B
overall_length0.574 INCHES MINIMUM AND 0.595 INCHES MAXIMUM IN
overall_diameter1.322 INCHES MAXIMUM IN
size_designation20 AND 21
style_designatorR.F. THREADED
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE
nominal_thread_size1.188 INCHES IN
cable_opening_quantity1
end_item_identificationTEST SET,GUIDED MISSILE AN/DSM-156A A
thread_quantity_per_inch18
NSN5935-01-258-7449
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BACKSHELL,ELECTRICAL CONNECTOR TITLE COMPONENT PN 10-405991-209 MFR BACKSHELL,ELECTRICAL C
KEY FEATURES
•
MOUNTING FACILITY TYPE AND QUANTITY: 1 THREADED COUPLING
•
OVERALL DIAMETER: 1.322 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: R.F. THREADED
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.188 INCHES IN
•
CABLE OPENING QUANTITY: 1
•
SIZE DESIGNATION: 20 AND 21
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY TYPE AND QUANTITY1 THREADED COUPLING
OVERALL DIAMETER1.322 INCHES MAXIMUM IN
STYLE DESIGNATORR.F. THREADED
OVERALL LENGTH0.574 INCHES MINIMUM AND 0.595 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.188 INCHES IN
CABLE OPENING QUANTITY1
SIZE DESIGNATION20 AND 21
SURFACE TREATMENTCADMIUM AND CHROMATE
THREAD CLASS2B
OTHER ITEMS IN FSC 5935 — Connectors, Electrical
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5935-00-000-8180 5935-00-001-1344 5935-00-001-1347 5935-00-001-1350 5935-00-001-1351 5935-00-001-1353 5935-00-001-1627 5935-00-001-1628
SUBSTITUTES & CROSS-REFERENCES 1
6400169-20Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10-405991-209?
10-405991-209 is a BACKSHELL,ELECTRICAL CONNECTOR.
What parts can replace 10-405991-209?
There is 1 known substitute for 10-405991-209: 6400169-20. Substitute compatibility should be verified for your specific system.
What is the NSN for 10-405991-209?
10-405991-209 is cataloged in the U.S. Government catalog under NSN 5935-01-258-7449. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.