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581-6726673-AY97 — BLOCK,TACKLE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

581-6726673-AY97: BLOCK,TACKLE.

The BLOCK,TACKLE is a the manufacturer industrial component. Key specifications include block_type: REGULAR, special_features: FWD UPPER STATIONARY SHEAVE ASSEMBLY, style_designator: HALF-ROUND PATTERN, end_item_identification: SEAWOLF CLASS SSN, tackle_accommodated_type: WIRE ROPE. This part is cataloged in the U.S.

Government catalog under NSN 3940-01-493-4091, 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
581-6726673-AY97
NSN: 3940-01-493-4091
FSC: 3940 — Blocks, Tackle, Rigging, and Slings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
block_typeREGULAR
sheave_quantity1
special_featuresFWD UPPER STATIONARY SHEAVE ASSEMBLY
style_designatorHALF-ROUND PATTERN
end_item_identificationSEAWOLF CLASS SSN
tackle_accommodated_typeWIRE ROPE
NSN3940-01-493-4091
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BLOCK,TACKLE TITLE COMPONENT PN 581-6726673-AY97 MFR BLOCK,TACKLE
KEY FEATURES
•
TACKLE ACCOMMODATED TYPE: WIRE ROPE
•
BLOCK TYPE: REGULAR
•
STYLE DESIGNATOR: HALF-ROUND PATTERN
•
SHEAVE QUANTITY: 1
TECHNICAL CHARACTERISTICS
TACKLE ACCOMMODATED TYPEWIRE ROPE
BLOCK TYPEREGULAR
STYLE DESIGNATORHALF-ROUND PATTERN
SPECIAL FEATURESFWD UPPER STATIONARY SHEAVE ASSEMBLY
END ITEM IDENTIFICATIONSEAWOLF CLASS SSN
SHEAVE QUANTITY1
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 2
DF2011-266 ASSY 97Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
14959431Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 581-6726673-AY97?
581-6726673-AY97 is a BLOCK,TACKLE.
What parts can replace 581-6726673-AY97?
There are 2 known substitutes for 581-6726673-AY97: DF2011-266 ASSY 97, 14959431. Substitute compatibility should be verified for your specific system.
What is the NSN for 581-6726673-AY97?
581-6726673-AY97 is cataloged in the U.S. Government catalog under NSN 3940-01-493-4091. 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.