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Technical Data Sheet
PartsTable / COMPONENT / 5310011886743
5310011886743 ✓ 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 COMP 1095 OVERALL, thickness: 0.040 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN, hole_diameter: 0.315 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN, hardness_rating: 47.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM, overall_diameter: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN, peripheral_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 5310-01-188-6743, 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
5310011886743
NSN: 5310-01-188-6743
FSC: 5310
CAGE: A00AM — E.C.A ETABLISSEMENT CENTRAL DES APPROVISIONNEMENTS DES FORCES ARMEES ROYALES
SPECIFICATIONS
materialSTEEL COMP 1095 OVERALL
thickness0.040 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN
hole_diameter0.315 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
hardness_rating47.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM
overall_diameter0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-01-188-6743
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5310011886743 · 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
•
HOLE DIAMETER: 0.315 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
•
HARDNESS RATING: 47.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM
•
MATERIAL: STEEL COMP 1095 OVERALL
•
OVERALL DIAMETER: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
•
PERIPHERAL SHAPE STYLE: ROUND
•
THICKNESS: 0.040 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
CENTER HOLE SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.315 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
HARDNESS RATING47.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM
MATERIALSTEEL COMP 1095 OVERALL
OVERALL DIAMETER0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.040 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
CENTER HOLE SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
K22325Interchangeable
interchangeable cross-reference
interchangeable
18-4222Interchangeable
interchangeable cross-reference
interchangeable
799080Interchangeable
interchangeable cross-reference
interchangeable
9-22325Interchangeable
interchangeable cross-reference
interchangeable
306283Interchangeable
interchangeable cross-reference
interchangeable
F97606Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5310011886743?
5310011886743 is a WASHER,FLAT.
What parts can replace 5310011886743?
There are 13 known substitutes for 5310011886743: K22325, 18-4222, 799080 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5310011886743?
5310011886743 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-188-6743. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026