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PartsTable / COMPONENT / BACW10Z4
BACW10Z4 ✓ 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,FINISHING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 5052 OVERALL, hole_diameter: 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, overall_height: 0.098 INCHES MINIMUM AND 0.108 INCHES MAXIMUM IN, outside_diameter: 0.505 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN, style_designator: FINISHING, surface_treatment: ZINC AND CHROMATE 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 5310-00-596-4719, 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
BACW10Z4
NSN: 5310-00-596-4719
FSC: 5310
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 5052 OVERALL
hole_diameter0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
overall_height0.098 INCHES MINIMUM AND 0.108 INCHES MAXIMUM IN
outside_diameter0.505 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
style_designatorFINISHING
surface_treatmentZINC AND CHROMATE OVERALL
material_thickness0.015 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
specification/standard_data81205-BACW10Z MANUFACTURERS STANDARD
material_document_and_classificationQQ-A-250/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-596-4719
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BACW10Z4 · 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: ALUMINUM ALLOY 5052 OVERALL
•
SPECIFICATION/STANDARD DATA: 81205-BACW10Z MANUFACTURERS STANDARD
•
SURFACE TREATMENT: ZINC AND CHROMATE OVERALL
•
HOLE DIAMETER: 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 0.505 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.015 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: FINISHING
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALALUMINUM ALLOY 5052 OVERALL
SPECIFICATION/STANDARD DATA81205-BACW10Z MANUFACTURERS STANDARD
SURFACE TREATMENTZINC AND CHROMATE OVERALL
HOLE DIAMETER0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.505 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
MATERIAL THICKNESS0.015 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
OVERALL HEIGHT0.098 INCHES MINIMUM AND 0.108 INCHES MAXIMUM IN
STYLE DESIGNATORFINISHING
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
22187Interchangeable
interchangeable cross-reference
interchangeable
19600Interchangeable
interchangeable cross-reference
interchangeable
50-10622Interchangeable
interchangeable cross-reference
interchangeable
00282Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BACW10Z4?
BACW10Z4 is a WASHER,FINISHING.
What parts can replace BACW10Z4?
There are 4 known substitutes for BACW10Z4: 22187, 19600, 50-10622 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BACW10Z4?
BACW10Z4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-596-4719. 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