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Technical Data Sheet
PartsTable / COMPONENT / 693048-3
693048-3 ✓ 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: 0.024 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN, hole_diameter: 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN, hardness_rating: 50.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM, overall_diameter: 0.990 INCHES MINIMUM AND 1.010 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 5310-00-491-3860, 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
693048-3
NSN: 5310-00-491-3860
FSC: 5310
CAGE: 99167 — HAMILTON SUNDSTRAND CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 1095 OVERALL
thickness0.024 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
hole_diameter0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN
hardness_rating50.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM
overall_diameter0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationAMS 5121 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-491-3860
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 693048-3 · 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
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
HARDNESS RATING: 50.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM
•
PERIPHERAL SHAPE STYLE: ROUND
•
THICKNESS: 0.024 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
•
HOLE DIAMETER: 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5121 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL COMP 1095 OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING50.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.024 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
HOLE DIAMETER0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5121 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1095 OVERALL
CENTER HOLE SHAPE STYLEROUND
OVERALL DIAMETER0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 1
A1229J166Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 693048-3?
693048-3 is a WASHER,FLAT.
What parts can replace 693048-3?
There is 1 known substitute for 693048-3: A1229J166. Substitute compatibility should be verified for your specific system.
What is the NSN for 693048-3?
693048-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-491-3860. 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