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BACW10A6CCU — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

BACW10A6CCU: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include radius: 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN, material: STEEL COMP 630 OR STEEL COMP 631 OVERALL, hole_diameter: 0.520 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN, overall_height: 0.135 INCHES MINIMUM AND 0.155 INCHES MAXIMUM IN, hardness_rating: 40.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM, outside_diameter: 0.795 INCHES MINIMUM AND 0.805 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-438-2307, 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
BACW10A6CCU
NSN: 5310-01-438-2307
FSC: 5310 — Nuts and Washers
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
radius0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
materialSTEEL COMP 630 OR STEEL COMP 631 OVERALL
hole_diameter0.520 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN
overall_height0.135 INCHES MINIMUM AND 0.155 INCHES MAXIMUM IN
hardness_rating40.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
outside_diameter0.795 INCHES MINIMUM AND 0.805 INCHES MAXIMUM IN
style_designatorRECESSED
surface_treatmentPASSIVATE OVERALL
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
NSN5310-01-438-2307
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BACW10A6CCU · 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 TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
RADIUS: 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5643 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5528 ASSN STD 2ND MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.795 INCHES MINIMUM AND 0.805 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.135 INCHES MINIMUM AND 0.155 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
RADIUS0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORRECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5528 ASSN STD 2ND MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.795 INCHES MINIMUM AND 0.805 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 630 OR STEEL COMP 631 OVERALL
HOLE DIAMETER0.520 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 3
BACW10CA6CCUReference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
70191-6USame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
942010-6Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BACW10A6CCU?
BACW10A6CCU is a WASHER,RECESSED.
What parts can replace BACW10A6CCU?
There are 3 known substitutes for BACW10A6CCU: BACW10CA6CCU, 70191-6U, 942010-6. Substitute compatibility should be verified for your specific system.
What is the NSN for BACW10A6CCU?
BACW10A6CCU is cataloged in the U.S. Government catalog under NSN 5310-01-438-2307. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.