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Technical Data Sheet
PartsTable / COMPONENT / SM-B-157017-6
SM-B-157017-6 ✓ 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: 0.033 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN, hole_diameter: 0.189 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN, overall_diameter: 0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM 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 5310-00-205-8937, 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
SM-B-157017-6
NSN: 5310-00-205-8937
FSC: 5310
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
thickness0.033 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
hole_diameter0.189 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN
overall_diameter0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-205-8937
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SM-B-157017-6 · 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
•
PERIPHERAL SHAPE STYLE: ROUND
•
THICKNESS: 0.033 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
•
OVERALL DIAMETER: 0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.189 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.033 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
OVERALL DIAMETER0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.189 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
1273Interchangeable
interchangeable cross-reference
interchangeable
52430Interchangeable
interchangeable cross-reference
interchangeable
20BC02PInterchangeable
interchangeable cross-reference
interchangeable
52403NInterchangeable
interchangeable cross-reference
interchangeable
52430NInterchangeable
interchangeable cross-reference
interchangeable
150192-001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SM-B-157017-6?
SM-B-157017-6 is a WASHER,FLAT.
What parts can replace SM-B-157017-6?
There are 8 known substitutes for SM-B-157017-6: 1273, 52430, 20BC02P and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SM-B-157017-6?
SM-B-157017-6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-205-8937. 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