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505950 — COUPLING,SHAFT,FLEXIBLE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

505950: COUPLING,SHAFT,FLEXIBLE.

The COUPLING,SHAFT,FLEXIBLE is a the manufacturer industrial component. Key specifications include material: STEEL, bore_type: TAPERED, rung_width: 3.188 INCHES NOMINAL IN, overall_width: 3.188 INCHES NOMINAL IN, rung_quantity: 36, overall_length: 5.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3010-00-239-3441, 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
505950
NSN: 3010-00-239-3441
NIINs: 002393441, 009970114, 012038772, 012052170, 012158851, 012183031, 012328962, 012585157, 012754314, 012777652, 012859643, 013401599, 013401600, 013836321, 014065765, 014090082, 014225728, 014231826, 014318267
FSC: 3010 — Torque Converters and Speed Changers
CAGE: 21444 — REXNORD INDUSTRIES LLC (USA)
SPECIFICATIONS
materialSTEEL
bore_typeTAPERED
rung_width3.188 INCHES NOMINAL IN
overall_width3.188 INCHES NOMINAL IN
rung_quantity36
overall_length5.000 INCHES NOMINAL IN
rung_thickness0.155 INCHES NOMINAL IN
outside_diameter5.562 INCHES NOMINAL IN
section_quantity2
special_featuresMATERIAL PER AISI 6150, MIL-S-18731
end_item_identificationSEAWOLF SUBMARINE
tapered_hole_major_diameter4.500 INCHES NOMINAL IN
NSN3010-00-239-3441
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COUPLING,SHAFT,FLEXIBLE TITLE COMPONENT PN 505950 MFR COUPLING,SHAFT,FLEXIBL
SUBSTITUTES & CROSS-REFERENCES 8
1040T20RBReference document
Same NSN cross-reference
Reference document — Design control — primary reference
6FReference document
Same NSN cross-reference
Reference document — Secondary reference
40T20RBReference document
Same NSN cross-reference
Reference document — Secondary reference
505950 COUPLING 520 1040TReference document
Same NSN cross-reference
Reference document — Secondary reference
GF2040VReference document
Same NSN cross-reference
Reference document — Secondary reference
4601-6FReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 505950?
505950 is a COUPLING,SHAFT,FLEXIBLE.
What parts can replace 505950?
There are 8 known substitutes for 505950: 1040T20RB, 6F, 40T20RB and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 505950?
505950 is cataloged in the U.S. Government catalog under NSN 3010-00-239-3441. 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.