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BACW10AZ4 — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

BACW10AZ4: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1050 OVERALL, hole_diameter: 0.256 INCHES MINIMUM AND 0.256 INCHES MINIMUM AND 0.267 INCHES MAXIMUM0.267 INCHES MAXIMUM IN, overall_height: 0.045 INCHES MINIMUM AND 0.045 INCHES MINIMUM AND 0.075 INCHES MAXIMUM0.075 INCHES MAXIMUM IN, outside_diameter: 0.552 INCHES MINIMUM AND 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM0.572 INCHES MAXIMUM IN, surface_treatment: CADMIUM OVERALL, material_thickness: 0.008 INCHES NOMINAL0.008 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-006-2097, 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
BACW10AZ4
NSN: 5310-01-006-2097
FSC: 5310 — Nuts and Washers
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP 1050 OVERALL
hole_diameter0.256 INCHES MINIMUM AND 0.256 INCHES MINIMUM AND 0.267 INCHES MAXIMUM0.267 INCHES MAXIMUM IN
overall_height0.045 INCHES MINIMUM AND 0.045 INCHES MINIMUM AND 0.075 INCHES MAXIMUM0.075 INCHES MAXIMUM IN
outside_diameter0.552 INCHES MINIMUM AND 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM0.572 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
material_thickness0.008 INCHES NOMINAL0.008 INCHES NOMINAL IN
specification/standard_data81205-BACW10AZ MANUFACTURERS STANDARD
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-006-2097
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BACW10AZ4 · 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 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.552 INCHES MINIMUM AND 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM0.572 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.008 INCHES NOMINAL0.008 INCHES NOMINAL IN
•
SPECIFICATION/STANDARD DATA: 81205-BACW10AZ MANUFACTURERS STANDARD
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL COMP 1050 OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.045 INCHES MINIMUM AND 0.045 INCHES MINIMUM AND 0.075 INCHES MAXIMUM0.075 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.552 INCHES MINIMUM AND 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM0.572 INCHES MAXIMUM IN
MATERIAL THICKNESS0.008 INCHES NOMINAL0.008 INCHES NOMINAL IN
SPECIFICATION/STANDARD DATA81205-BACW10AZ MANUFACTURERS STANDARD
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL COMP 1050 OVERALL
HOLE DIAMETER0.256 INCHES MINIMUM AND 0.256 INCHES MINIMUM AND 0.267 INCHES MAXIMUM0.267 INCHES MAXIMUM IN
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 BACW10AZ4?
BACW10AZ4 is a WASHER,SPRING TENSION.
What is the NSN for BACW10AZ4?
BACW10AZ4 is cataloged in the U.S. Government catalog under NSN 5310-01-006-2097. 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.