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PartsTable / COMPONENT / BACW10P183AL
BACW10P183AL ✓ 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: ALUMINUM ALLOY 2024 OVERALL, thickness: 0.028 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN, hole_diameter: 0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES INNER, overall_diameter: 0.438 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN, surface_treatment: OXIDE FILM OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-687-9812, 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
BACW10P183AL
NSN: 5310-00-687-9812
FSC: 5310
CAGE: 82918 — THE BOEING COMPANY DIV LEGACY WICHITA (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OVERALL
thickness0.028 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
hole_diameter0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES INNER
overall_diameter0.438 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
surface_treatmentOXIDE FILM OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identificationKC-46 AIRCRAFT
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationQQ-A-225/6 COND T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationMIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-687-9812
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BACW10P183AL · 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
•
SURFACE FINISH: 63.0 MICROINCHES INNER
•
MATERIAL: ALUMINUM ALLOY 2024 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/6 COND T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
SURFACE TREATMENT: OXIDE FILM OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISH63.0 MICROINCHES INNER
MATERIALALUMINUM ALLOY 2024 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6 COND T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTOXIDE FILM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OVERALL DIAMETER0.438 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
THICKNESS0.028 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
21A83112Interchangeable
interchangeable cross-reference
interchangeable
H1K500Interchangeable
interchangeable cross-reference
interchangeable
331500Interchangeable
interchangeable cross-reference
interchangeable
M3712Interchangeable
interchangeable cross-reference
interchangeable
GT805CW2Interchangeable
interchangeable cross-reference
interchangeable
BACW10P183ALInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BACW10P183AL?
BACW10P183AL is a WASHER,FLAT.
What parts can replace BACW10P183AL?
There are 6 known substitutes for BACW10P183AL: 21A83112, H1K500, 331500 and 3 more. Substitute compatibility should be verified for your specific system.
Is BACW10P183AL still available?
BACW10P183AL is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026