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6776881 — BELL CRANK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6776881: BELL CRANK.

The BELL CRANK is a the manufacturer industrial component. Key specifications include angle: 45.0 RADIANS NOMINAL, material: COPPER ALLOY 464 OVERALL, thickness: 0.125 INCHES NOMINAL IN, fork_depth: 2.750 INCHES NOMINAL IN, hole_shape: ROUND, angle_height: 0.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-486-5939, 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
6776881
NSN: 5310-01-486-5939
NIINs: 014865939, 014872251, 014872252, 014872269, 014884800, 014884873, 014885706, 014888677
FSC: 5310 — Nuts and Washers
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
angle45.0 RADIANS NOMINAL
materialCOPPER ALLOY 464 OVERALL
thickness0.125 INCHES NOMINAL IN
fork_depth2.750 INCHES NOMINAL IN
hole_shapeROUND
angle_height0.500 INCHES NOMINAL IN
chamfer_angle45.0 DEGREES NOMINAL FIRST END
hole_diameter0.812 INCHES NOMINAL IN
overall_width2.000 INCHES NOMINAL IN
chamfer_length0.375 INCHES NOMINAL FIRST END IN
overall_height2.000 INCHES NOMINAL IN
overall_length15.875 INCHES NOMINAL IN
NSN5310-01-486-5939
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6776881 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OVERALL DIAMETER: 2.000 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-637,ALY-464 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: COPPER ALLOY 464 OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.812 INCHES NOMINAL IN
•
THICKNESS: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER2.000 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-637,ALY-464 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALCOPPER ALLOY 464 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.812 INCHES NOMINAL IN
THICKNESS0.125 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 6776881?
6776881 is a BELL CRANK.
What is the NSN for 6776881?
6776881 is cataloged in the U.S. Government catalog under NSN 5310-01-486-5939. 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.