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PartsTable / COMPONENT / BACW10CA6CVU
BACW10CA6CVU ✓ 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,CONVEX is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630 OR STEEL COMP 631 OVERALL, hole_diameter: 0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN, hardness_rating: 40.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM, outside_diameter: 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN, style_designator: CONVEX, surface_treatment: PASSIVATE 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 5310-01-438-2377, 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
BACW10CA6CVU
NSN: 5310-01-438-2377
FSC: 5310
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP 630 OR STEEL COMP 631 OVERALL
hole_diameter0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
hardness_rating40.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
outside_diameter0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
style_designatorCONVEX
surface_treatmentPASSIVATE OVERALL
material_thickness0.125 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
material_document_and_classificationAMS 5643 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5528 ASSN STD 2ND MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-438-2377
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BACW10CA6CVU · 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
•
OUTSIDE DIAMETER: 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5643 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5528 ASSN STD 2ND MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL COMP 630 OR STEEL COMP 631 OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
STYLE DESIGNATOR: CONVEX
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL THICKNESS: 0.125 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5528 ASSN STD 2ND MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 630 OR STEEL COMP 631 OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
STYLE DESIGNATORCONVEX
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIAL THICKNESS0.125 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
HOLE DIAMETER0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
942009Interchangeable
interchangeable cross-reference
interchangeable
403AInterchangeable
interchangeable cross-reference
interchangeable
70188Interchangeable
interchangeable cross-reference
interchangeable
K29646Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BACW10CA6CVU?
BACW10CA6CVU is a WASHER,CONVEX.
What parts can replace BACW10CA6CVU?
There are 4 known substitutes for BACW10CA6CVU: 942009, 403A, 70188 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BACW10CA6CVU?
BACW10CA6CVU is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-438-2377. 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