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BACW10BP71C — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

BACW10BP71C: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4135 OVERALL, recess_angle: 45.0 DEGREES MINIMUM AND 50.0 DEGREES MAXIMUM, hole_diameter: 0.454 INCHES MINIMUM AND 0.465 INCHES MAXIMUM IN, hardness_rating: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM, recess_diameter: 0.567 INCHES MINIMUM AND 0.587 INCHES MAXIMUM IN, outside_diameter: 0.750 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-434-3797, 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
BACW10BP71C
NSN: 5310-01-434-3797
FSC: 5310 — Nuts and Washers
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4135 OVERALL
recess_angle45.0 DEGREES MINIMUM AND 50.0 DEGREES MAXIMUM
hole_diameter0.454 INCHES MINIMUM AND 0.465 INCHES MAXIMUM IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
recess_diameter0.567 INCHES MINIMUM AND 0.587 INCHES MAXIMUM IN
outside_diameter0.750 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN
style_designatorRECESSED
surface_treatmentNICKEL AND CHROMATE OVERALL
material_thickness0.064 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN
specification/standard_data81205-BACW10P PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
material_document_and_classificationMIL-S-18729 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-18728 MIL SPEC 2ND MATERIAL RESPONSE OR AMS 6357 ASSN STD 3RD MATERIAL RESPONSE OR AMS 6352 ASSN STD 4TH MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationAMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-434-3797
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BACW10BP71C · 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: AMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-18729 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-18728 MIL SPEC 2ND MATERIAL RESPONSE OR AMS 6357 ASSN STD 3RD MATERIAL RESPONSE OR AMS 6352 ASSN STD 4TH MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.750 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.064 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN
•
SPECIFICATION/STANDARD DATA: 81205-BACW10P PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
RECESS DIAMETER: 0.567 INCHES MINIMUM AND 0.587 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORRECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-18729 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-18728 MIL SPEC 2ND MATERIAL RESPONSE OR AMS 6357 ASSN STD 3RD MATERIAL RESPONSE OR AMS 6352 ASSN STD 4TH MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.750 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN
MATERIAL THICKNESS0.064 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN
SPECIFICATION/STANDARD DATA81205-BACW10P PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
RECESS DIAMETER0.567 INCHES MINIMUM AND 0.587 INCHES MAXIMUM IN
SURFACE TREATMENTNICKEL AND CHROMATE OVERALL
MATERIALSTEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4135 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 BACW10BP71C?
BACW10BP71C is a WASHER,RECESSED.
What is the NSN for BACW10BP71C?
BACW10BP71C is cataloged in the U.S. Government catalog under NSN 5310-01-434-3797. 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.