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A547-547 ✓ 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: 0.022 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN, hole_diameter: 0.136 INCHES NOMINAL IN, overall_diameter: 0.312 INCHES NOMINAL IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-889-2535, 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
A547-547
NSN: 5310-00-889-2535
FSC: 5310
CAGE: 34228 — L3 TECHNOLOGIES, INC. DIV L3 KEO (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
thickness0.022 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
hole_diameter0.136 INCHES NOMINAL IN
overall_diameter0.312 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-889-2535
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A547-547 · 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
•
PERIPHERAL SHAPE STYLE: ROUND
•
OVERALL DIAMETER: 0.312 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY OVERALL
•
THICKNESS: 0.022 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
HOLE DIAMETER: 0.136 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE SHAPE STYLEROUND
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER0.312 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
THICKNESS0.022 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.136 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
A31U29931-1Interchangeable
interchangeable cross-reference
interchangeable
0029-88Interchangeable
interchangeable cross-reference
interchangeable
547A002988Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A547-547?
A547-547 is a WASHER,FLAT.
What parts can replace A547-547?
There are 3 known substitutes for A547-547: A31U29931-1, 0029-88, 547A002988. Substitute compatibility should be verified for your specific system.
What is the NSN for A547-547?
A547-547 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-889-2535. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026