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6139005-50 — BLOCK AND TACKLE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

6139005-50: BLOCK AND TACKLE.

The BLOCK AND TACKLE is a the manufacturer industrial component. Key specifications include material: WOOD SHEAVE, block_type: REGULAR, load_rating: 1000.0 POUNDS MAXIMUM LBS, shell_length: 8.000 INCHES NOMINAL IN, style_designator: RECTANGULAR PATTERN, center_pin_diameter: 0.625 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3940-01-283-2826, 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
6139005-50
NSN: 3940-01-283-2826
FSC: 3940 — Blocks, Tackle, Rigging, and Slings
CAGE: 4K539 — POLYTECH DEFENSE SPARES LLC (USA)
SPECIFICATIONS
materialWOOD SHEAVE
block_typeREGULAR
load_rating1000.0 POUNDS MAXIMUM LBS
shell_length8.000 INCHES NOMINAL IN
style_designatorRECTANGULAR PATTERN
center_pin_diameter0.625 INCHES NOMINAL IN
tackle_block_quantity2
tackle_nominal_length175.0 FEET FT
sheave_outside_diameter4.500 INCHES NOMINAL IN
tackle_accommodated_typeFIBROUS ROPE
maximum_tackle_diameter_accommodated1.500 INCHES IN
NSN3940-01-283-2826
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BLOCK AND TACKLE TITLE COMPONENT PN 6139005-50 MFR BLOCK AND TACKLE
KEY FEATURES
•
MAXIMUM TACKLE DIAMETER ACCOMMODATED: 1.500 INCHES IN
•
LOAD RATING: 1000.0 POUNDS MAXIMUM LBS
•
TACKLE NOMINAL LENGTH: 175.0 FEET FT
•
SHEAVE OUTSIDE DIAMETER: 4.500 INCHES NOMINAL IN
•
TACKLE ACCOMMODATED TYPE: FIBROUS ROPE
•
BLOCK TYPE: REGULAR
•
CENTER PIN DIAMETER: 0.625 INCHES NOMINAL IN
•
STYLE DESIGNATOR: RECTANGULAR PATTERN
TECHNICAL CHARACTERISTICS
MAXIMUM TACKLE DIAMETER ACCOMMODATED1.500 INCHES IN
LOAD RATING1000.0 POUNDS MAXIMUM LBS
TACKLE NOMINAL LENGTH175.0 FEET FT
SHEAVE OUTSIDE DIAMETER4.500 INCHES NOMINAL IN
TACKLE ACCOMMODATED TYPEFIBROUS ROPE
BLOCK TYPEREGULAR
CENTER PIN DIAMETER0.625 INCHES NOMINAL IN
STYLE DESIGNATORRECTANGULAR PATTERN
TACKLE BLOCK QUANTITY2
SHELL LENGTH8.000 INCHES NOMINAL IN
OTHER ITEMS IN FSC 3940 — Blocks, Tackle, Rigging, and Slings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3940-00-000-0169 3940-00-003-0706 3940-00-004-3568 3940-00-004-9175 3940-00-005-1366 3940-00-005-1367 3940-00-006-3256 3940-00-007-2801
SUBSTITUTES & CROSS-REFERENCES 1
606437Reference document
Same NSN cross-reference
Reference document — Secondary 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 6139005-50?
6139005-50 is a BLOCK AND TACKLE.
What parts can replace 6139005-50?
There is 1 known substitute for 6139005-50: 606437. Substitute compatibility should be verified for your specific system.
What is the NSN for 6139005-50?
6139005-50 is cataloged in the U.S. Government catalog under NSN 3940-01-283-2826. 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.