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Technical Data Sheet
PartsTable / COMPONENT / SMB187069
SMB187069 ✓ 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,SHOULDERED AND RECESSED is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 170 OVERALL, recess_angle: 45.0 DEGREES NOMINAL, hole_diameter: 0.578 INCHES MINIMUM AND 0.583 INCHES MAXIMUM IN, shoulder_height: 0.032 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN, outside_diameter: 1.266 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN, style_designator: SHOULDERED AND RECESSED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-652-5674, 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
SMB187069
NSN: 5310-00-652-5674
FSC: 5310
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialCOPPER ALLOY 170 OVERALL
recess_angle45.0 DEGREES NOMINAL
hole_diameter0.578 INCHES MINIMUM AND 0.583 INCHES MAXIMUM IN
shoulder_height0.032 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
outside_diameter1.266 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN
style_designatorSHOULDERED AND RECESSED
shoulder_diameter1.172 INCHES MINIMUM AND 1.203 INCHES MAXIMUM IN
material_thickness0.008 INCHES MINIMUM AND 0.012 INCHES MAXIMUM IN
material_document_and_classificationQQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-652-5674
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SMB187069 · 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
•
MATERIAL: COPPER ALLOY 170 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
STYLE DESIGNATOR: SHOULDERED AND RECESSED
•
SHOULDER HEIGHT: 0.032 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 1.172 INCHES MINIMUM AND 1.203 INCHES MAXIMUM IN
•
HOLE DIAMETER: 0.578 INCHES MINIMUM AND 0.583 INCHES MAXIMUM IN
•
RECESS ANGLE: 45.0 DEGREES NOMINAL
•
OUTSIDE DIAMETER: 1.266 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY 170 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORSHOULDERED AND RECESSED
SHOULDER HEIGHT0.032 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
SHOULDER DIAMETER1.172 INCHES MINIMUM AND 1.203 INCHES MAXIMUM IN
HOLE DIAMETER0.578 INCHES MINIMUM AND 0.583 INCHES MAXIMUM IN
RECESS ANGLE45.0 DEGREES NOMINAL
OUTSIDE DIAMETER1.266 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN
MATERIAL THICKNESS0.008 INCHES MINIMUM AND 0.012 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
55160Interchangeable
interchangeable cross-reference
interchangeable
4372Interchangeable
interchangeable cross-reference
interchangeable
13221E8328Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SMB187069?
SMB187069 is a WASHER,SHOULDERED AND RECESSED.
What parts can replace SMB187069?
There are 3 known substitutes for SMB187069: 55160, 4372, 13221E8328. Substitute compatibility should be verified for your specific system.
What is the NSN for SMB187069?
SMB187069 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-652-5674. 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