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Technical Data Sheet
PartsTable / COMPONENT / SC-B-70488
SC-B-70488 ✓ 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: PLASTIC PHENOLIC OVERALL, thickness: 0.062 INCHES NOMINAL IN, hole_diameter: 0.166 INCHES NOMINAL IN, overall_diameter: 0.510 INCHES NOMINAL 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 5310-00-049-7872, 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
SC-B-70488
NSN: 5310-00-049-7872
FSC: 5310
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialPLASTIC PHENOLIC OVERALL
thickness0.062 INCHES NOMINAL IN
hole_diameter0.166 INCHES NOMINAL IN
overall_diameter0.510 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-049-7872
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SC-B-70488 · 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: 0.510 INCHES NOMINAL IN
•
THICKNESS: 0.062 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.166 INCHES NOMINAL IN
•
MATERIAL: PLASTIC PHENOLIC OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
CENTER HOLE SHAPE STYLE: ROUND
•
PERIPHERAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DIAMETER0.510 INCHES NOMINAL IN
THICKNESS0.062 INCHES NOMINAL IN
HOLE DIAMETER0.166 INCHES NOMINAL IN
MATERIALPLASTIC PHENOLIC OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
CENTER HOLE SHAPE STYLEROUND
PERIPHERAL SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
5146-1Interchangeable
interchangeable cross-reference
interchangeable
250LEDPLATEInterchangeable
interchangeable cross-reference
interchangeable
5148-1Interchangeable
interchangeable cross-reference
interchangeable
CGC-W-MInterchangeable
interchangeable cross-reference
interchangeable
SC-1Interchangeable
interchangeable cross-reference
interchangeable
A-A-51152Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SC-B-70488?
SC-B-70488 is a WASHER,FLAT.
What parts can replace SC-B-70488?
There are 9 known substitutes for SC-B-70488: 5146-1, 250LEDPLATE, 5148-1 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SC-B-70488?
SC-B-70488 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-049-7872. 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