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BACW10U-B416 — WASHER,FINISHING

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

BACW10U-B416: WASHER,FINISHING.

The WASHER,FINISHING is a the manufacturer industrial component. Key specifications include recess_angle: 99.0 DEGREES MINIMUM AND 103.0 DEGREES MAXIMUM, hole_diameter: 0.261 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN, overall_height: 0.105 INCHES NOMINAL IN, recess_diameter: 0.507 INCHES MINIMUM AND 0.527 INCHES MAXIMUM IN, outside_diameter: 0.763 INCHES MINIMUM AND 0.793 INCHES MAXIMUM IN, style_designator: FINISHING. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-050-4258, 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
BACW10U-B416
NSN: 5310-01-050-4258
FSC: 5310 — Nuts and Washers
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1020 OR STEEL COMP 1025 OR STEEL COMP 1010 OVERALL
recess_angle99.0 DEGREES MINIMUM AND 103.0 DEGREES MAXIMUM
hole_diameter0.261 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
overall_height0.105 INCHES NOMINAL IN
recess_diameter0.507 INCHES MINIMUM AND 0.527 INCHES MAXIMUM IN
outside_diameter0.763 INCHES MINIMUM AND 0.793 INCHES MAXIMUM IN
style_designatorFINISHING
surface_treatmentCADMIUM OVERALL
material_thickness0.014 INCHES MINIMUM AND 0.018 INCHES MAXIMUM IN
specification/standard_data81205-BACW10U MANUFACTURERS STANDARD
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-050-4258
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BACW10U-B416 · 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-416,TY 2,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: FINISHING
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-698,COND 1/2 H OR HARD FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-698,COND 1/2 H OR HARD FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-698,COND 1/2 H OR HARD FED SPEC 3RD MATERIAL RESPONSE OR QQ-S-698,COND 1/2 H OR HARD FED SPEC 4TH MATERIAL RESPONSE OR QQ-S-698,COND 1/2 H OR HARD FED SPEC 5TH MATERIAL RESPONSE OR MIL-S-7952 MIL SPEC 5TH MATERIAL RESPONSE OR MIL-S-7952 MIL SPEC 6TH MATERIAL RESPONSE OR SAE ASSN STD 7TH MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.763 INCHES MINIMUM AND 0.793 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.014 INCHES MINIMUM AND 0.018 INCHES MAXIMUM IN
•
SPECIFICATION/STANDARD DATA: 81205-BACW10U MANUFACTURERS STANDARD
•
RECESS DIAMETER: 0.507 INCHES MINIMUM AND 0.527 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.105 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORFINISHING
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-698,COND 1/2 H OR HARD FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-698,COND 1/2 H OR HARD FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-698,COND 1/2 H OR HARD FED SPEC 3RD MATERIAL RESPONSE OR QQ-S-698,COND 1/2 H OR HARD FED SPEC 4TH MATERIAL RESPONSE OR QQ-S-698,COND 1/2 H OR HARD FED SPEC 5TH MATERIAL RESPONSE OR MIL-S-7952 MIL SPEC 5TH MATERIAL RESPONSE OR MIL-S-7952 MIL SPEC 6TH MATERIAL RESPONSE OR SAE ASSN STD 7TH MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.763 INCHES MINIMUM AND 0.793 INCHES MAXIMUM IN
MATERIAL THICKNESS0.014 INCHES MINIMUM AND 0.018 INCHES MAXIMUM IN
SPECIFICATION/STANDARD DATA81205-BACW10U MANUFACTURERS STANDARD
RECESS DIAMETER0.507 INCHES MINIMUM AND 0.527 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1020 OR STEEL COMP 1025 OR STEEL COMP 1010 OVERALL
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 BACW10U-B416?
BACW10U-B416 is a WASHER,FINISHING.
What is the NSN for BACW10U-B416?
BACW10U-B416 is cataloged in the U.S. Government catalog under NSN 5310-01-050-4258. 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.