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Technical Data Sheet
PartsTable / COMPONENT / 647-2980-001
647-2980-001 ✓ 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 ALLOY OVERALL, thickness: 0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN, hole_diameter: 0.188 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN, overall_diameter: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-190-2924, 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
647-2980-001
NSN: 5310-00-190-2924
FSC: 5310
CAGE: 43999 — THE BOEING COMPANY DIV LEGACY AM&M (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
thickness0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
hole_diameter0.188 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
overall_diameter0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-190-2924
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 647-2980-001 · 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
•
CENTER HOLE SHAPE STYLE: ROUND
•
OVERALL DIAMETER: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.188 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
•
THICKNESS: 0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE SHAPE STYLEROUND
OVERALL DIAMETER0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY OVERALL
PERIPHERAL SHAPE STYLEROUND
HOLE DIAMETER0.188 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
THICKNESS0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
100704Interchangeable
interchangeable cross-reference
interchangeable
400-1Interchangeable
interchangeable cross-reference
interchangeable
400SIZE1INInterchangeable
interchangeable cross-reference
interchangeable
33P100704Interchangeable
interchangeable cross-reference
interchangeable
E03Interchangeable
interchangeable cross-reference
interchangeable
1161A-100Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 647-2980-001?
647-2980-001 is a WASHER,FLAT.
What parts can replace 647-2980-001?
There are 6 known substitutes for 647-2980-001: 100704, 400-1, 400SIZE1IN and 3 more. Substitute compatibility should be verified for your specific system.
Is 647-2980-001 still available?
647-2980-001 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