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BACW10Q5 — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

BACW10Q5: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1020 OR STEEL COMP 1025 OVERALL, hole_diameter: 0.320 INCHES MINIMUM AND 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM0.340 INCHES MAXIMUM IN, outside_diameter: 0.790 INCHES MINIMUM AND 0.790 INCHES MINIMUM AND 0.810 INCHES MAXIMUM0.810 INCHES MAXIMUM IN, style_designator: SPRING TENSION, surface_treatment: CADMIUM OVERALL, material_thickness: 0.020 INCHES NOMINAL0.020 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-031-0786, 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
BACW10Q5
NSN: 5310-01-031-0786
FSC: 5310 — Nuts and Washers
CAGE: 17765 — THE BOEING COMPANY DIV COMMERCIAL (USA)
SPECIFICATIONS
materialSTEEL COMP 1020 OR STEEL COMP 1025 OVERALL
hole_diameter0.320 INCHES MINIMUM AND 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM0.340 INCHES MAXIMUM IN
outside_diameter0.790 INCHES MINIMUM AND 0.790 INCHES MINIMUM AND 0.810 INCHES MAXIMUM0.810 INCHES MAXIMUM IN
style_designatorSPRING TENSION
surface_treatmentCADMIUM OVERALL
material_thickness0.020 INCHES NOMINAL0.020 INCHES NOMINAL IN
specification/standard_data81205-BACW10Q MANUFACTURERS STANDARD
material_document_and_classificationMIL-S-7952 MIL SPEC ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-031-0786
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BACW10Q5 · 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 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: SPRING TENSION
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-7952 MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
OUTSIDE DIAMETER: 0.790 INCHES MINIMUM AND 0.790 INCHES MINIMUM AND 0.810 INCHES MAXIMUM0.810 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.020 INCHES NOMINAL0.020 INCHES NOMINAL IN
•
SPECIFICATION/STANDARD DATA: 81205-BACW10Q MANUFACTURERS STANDARD
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL COMP 1020 OR STEEL COMP 1025 OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORSPRING TENSION
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7952 MIL SPEC ALL MATERIAL RESPONSES OVERALL
OUTSIDE DIAMETER0.790 INCHES MINIMUM AND 0.790 INCHES MINIMUM AND 0.810 INCHES MAXIMUM0.810 INCHES MAXIMUM IN
MATERIAL THICKNESS0.020 INCHES NOMINAL0.020 INCHES NOMINAL IN
SPECIFICATION/STANDARD DATA81205-BACW10Q MANUFACTURERS STANDARD
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL COMP 1020 OR STEEL COMP 1025 OVERALL
HOLE DIAMETER0.320 INCHES MINIMUM AND 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM0.340 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BACW10Q5?
BACW10Q5 is a WASHER,SPRING TENSION.
What is the NSN for BACW10Q5?
BACW10Q5 is cataloged in the U.S. Government catalog under NSN 5310-01-031-0786. 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.