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Technical Data Sheet
PartsTable / COMPONENT / 532188-2
532188-2 ✓ 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,CONCAVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, hole_diameter: 0.144 INCHES NOMINAL IN, outside_diameter: 0.281 INCHES NOMINAL IN, material_thickness: 0.125 INCHES NOMINAL IN, material_document_and_classification: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-598-8070, 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
532188-2
NSN: 5310-00-598-8070
FSC: 5310
CAGE: 96214 — RAYTHEON COMPANY DBA RAYTHEON (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
hole_diameter0.144 INCHES NOMINAL IN
outside_diameter0.281 INCHES NOMINAL IN
material_thickness0.125 INCHES NOMINAL IN
material_document_and_classificationAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-598-8070
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 532188-2 · 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 DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
HOLE DIAMETER: 0.144 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 0.281 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 303 OVERALL
•
MATERIAL THICKNESS: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HOLE DIAMETER0.144 INCHES NOMINAL IN
OUTSIDE DIAMETER0.281 INCHES NOMINAL IN
MATERIALSTEEL COMP 303 OVERALL
MATERIAL THICKNESS0.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
3-16-1Interchangeable
interchangeable cross-reference
interchangeable
A3-16RD TINNEDInterchangeable
interchangeable cross-reference
interchangeable
MS35446-1Interchangeable
interchangeable cross-reference
interchangeable
6715Interchangeable
interchangeable cross-reference
interchangeable
D9484-59-7Interchangeable
interchangeable cross-reference
interchangeable
44615K422Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 532188-2?
532188-2 is a WASHER,CONCAVE.
What parts can replace 532188-2?
There are 25 known substitutes for 532188-2: 3-16-1, A3-16RD TINNED, MS35446-1 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 532188-2?
532188-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-598-8070. 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