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Technical Data Sheet
PartsTable / COMPONENT / 72-77320-126
72-77320-126 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: COPPER OVERALL, thickness: 0.083 INCHES NOMINAL IN, hole_diameter: 6.1 MILLIMETERS NOMINAL MM, overall_diameter: 12.9 MILLIMETERS NOMINAL MM, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-599-4833, 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
72-77320-126
NSN: 5310-00-599-4833
FSC: 5310
CAGE: 7PZX0 — FAIRBANKS MORSE, LLC (USA)
SPECIFICATIONS
materialCOPPER OVERALL
thickness0.083 INCHES NOMINAL IN
hole_diameter6.1 MILLIMETERS NOMINAL MM
overall_diameter12.9 MILLIMETERS NOMINAL MM
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-599-4833
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 72-77320-126 · 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
•
MATERIAL: COPPER OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
OVERALL DIAMETER: 12.9 MILLIMETERS NOMINAL MM
•
THICKNESS: 0.083 INCHES NOMINAL IN
•
HOLE DIAMETER: 6.1 MILLIMETERS NOMINAL MM
•
PERIPHERAL SHAPE STYLE: ROUND
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER OVERALL
CENTER HOLE SHAPE STYLEROUND
OVERALL DIAMETER12.9 MILLIMETERS NOMINAL MM
THICKNESS0.083 INCHES NOMINAL IN
HOLE DIAMETER6.1 MILLIMETERS NOMINAL MM
PERIPHERAL SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
GA7611Interchangeable
interchangeable cross-reference
interchangeable
413Interchangeable
interchangeable cross-reference
interchangeable
001-714Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 72-77320-126?
72-77320-126 is a WASHER,FLAT.
What parts can replace 72-77320-126?
There are 3 known substitutes for 72-77320-126: GA7611, 413, 001-714. Substitute compatibility should be verified for your specific system.
Is 72-77320-126 still available?
72-77320-126 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026