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PartsTable / COMPONENT / 5310EG007
5310EG007 ✓ 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: STEEL OVERALL, thickness: 0.094 INCHES NOMINAL IN, hole_diameter: 0.328 INCHES NOMINAL IN, hardness_rating: 25.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM, overall_diameter: 0.750 INCHES NOMINAL IN, surface_treatment: CADMIUM OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-478-8657, 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
5310EG007
NSN: 5310-00-478-8657
FSC: 5310
CAGE: 81996 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.094 INCHES NOMINAL IN
hole_diameter0.328 INCHES NOMINAL IN
hardness_rating25.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
overall_diameter0.750 INCHES NOMINAL IN
surface_treatmentCADMIUM OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-478-8657
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5310EG007 · 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: 0.750 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL OVERALL
•
HARDNESS RATING: 25.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.328 INCHES NOMINAL IN
•
THICKNESS: 0.094 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DIAMETER0.750 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL OVERALL
HARDNESS RATING25.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.328 INCHES NOMINAL IN
THICKNESS0.094 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
401506-5Interchangeable
interchangeable cross-reference
interchangeable
401506Interchangeable
interchangeable cross-reference
interchangeable
66R2100Interchangeable
interchangeable cross-reference
interchangeable
6515NCM021795Interchangeable
interchangeable cross-reference
interchangeable
401.506Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5310EG007?
5310EG007 is a WASHER,FLAT.
What parts can replace 5310EG007?
There are 5 known substitutes for 5310EG007: 401506-5, 401506, 66R2100 and 2 more. Substitute compatibility should be verified for your specific system.
Is 5310EG007 still available?
5310EG007 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