3663T51 — SHACKLE

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

3663T51: SHACKLE.

The SHACKLE is a the manufacturer industrial component. Key specifications include eyelet_style: ROUND THREADED, end_condition: THREADED, inside_length: 1.4375 INCHES NOMINAL IN, opening_width: 0.65625 INCHES NOMINAL IN, special_features: MATT-GALVANIZED ALLOY STEEL, style_designator: ANCHOR. This part is cataloged in the U.S.

Government catalog under NSN 4030-01-478-5650, 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

3663T51

NSN: 4030-01-478-5650
NIINs: 014785650, 015949813
FSC: 4030 — Fittings for Rope, Cable, and Chain
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)

SPECIFICATIONS

eyelet_style	ROUND THREADED
end_condition	THREADED
inside_length	1.4375 INCHES NOMINAL IN
opening_width	0.65625 INCHES NOMINAL IN
special_features	MATT-GALVANIZED ALLOY STEEL
style_designator	ANCHOR
material_diameter	0.375 INCHES NOMINAL IN
closure_head_style	SHOULDER EYE
eye_inside_diameter	0.4375 INCHES NOMINAL IN
material_document_and_classification	RR-C-27D FED SPEC SINGLE MATERIAL RESPONSE
part_name_assigned_by_controlling_agency	ANCHOR SHACKLES
NSN	4030-01-478-5650

COMPONENT DIAGRAM

KEY FEATURES

•

INSIDE LENGTH: 1.437 INCHES NOMINAL IN

•

MATERIAL DIAMETER: 0.375 INCHES NOMINAL IN

•

STYLE DESIGNATOR: ANCHOR

•

OPENING WIDTH: 0.656 INCHES NOMINAL IN

•

EYELET STYLE: ROUND PLAIN

•

SAFE OPERATING LOAD RATING: 3800.000 POUNDS NOMINAL LBS

•

SPECIFICATION/STANDARD DATA: 81348-RR-C-271D GOVERNMENT SPECIFICATION

•

NONDEFINITIVE SPEC/STD DATA: 4A TYPE AND B GRADE AND 2 CLASS AND 3/8 SIZE A

TECHNICAL CHARACTERISTICS

INSIDE LENGTH	1.437 INCHES NOMINAL IN
MATERIAL DIAMETER	0.375 INCHES NOMINAL IN
STYLE DESIGNATOR	ANCHOR
OPENING WIDTH	0.656 INCHES NOMINAL IN
EYELET STYLE	ROUND PLAIN
SAFE OPERATING LOAD RATING	3800.000 POUNDS NOMINAL LBS
SPECIFICATION/STANDARD DATA	81348-RR-C-271D GOVERNMENT SPECIFICATION
NONDEFINITIVE SPEC/STD DATA	4A TYPE AND B GRADE AND 2 CLASS AND 3/8 SIZE A
CLOSURE HEAD STYLE	SHOULDER EYE
SPECIAL FEATURES	WITH SCREW PIN

SUBSTITUTES & CROSS-REFERENCES 3

RR-C-271Reference document

Same NSN cross-reference

Reference document — Secondary reference

12489243Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

5410695Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 3663T51?

3663T51 is a SHACKLE.

What parts can replace 3663T51?

There are 3 known substitutes for 3663T51: RR-C-271, 12489243, 5410695. Substitute compatibility should be verified for your specific system.

What is the NSN for 3663T51?

3663T51 is cataloged in the U.S. Government catalog under NSN 4030-01-478-5650. This indicates validated use in U.S. government and defense supply chains.

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3663T51 — SHACKLE

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