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6875853 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6875853: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.317 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN, hardness_rating: 50.0 ROCKWELL C MINIMUM AND 56.0 ROCKWELL C MAXIMUM, outside_diameter: 0.625 INCHES NOMINAL IN, style_designator: RECESSED BOTH SIDES, top_recess_angle: 90.0 DEGREES NOMINAL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-182-6176, 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
6875853
NSN: 5310-00-182-6176
FSC: 5310 — Nuts and Washers
CAGE: 73342 — ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.317 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
hardness_rating50.0 ROCKWELL C MINIMUM AND 56.0 ROCKWELL C MAXIMUM
outside_diameter0.625 INCHES NOMINAL IN
style_designatorRECESSED BOTH SIDES
top_recess_angle90.0 DEGREES NOMINAL
surface_treatmentNICKEL AND CADMIUM OVERALL
material_thickness0.155 INCHES NOMINAL IN
bottom_recess_angle90.0 DEGREES NOMINAL
top_recess_diameter0.394 INCHES MINIMUM AND 0.404 INCHES MAXIMUM IN
bottom_recess_diameter0.394 INCHES MINIMUM AND 0.404 INCHES MAXIMUM IN
material_document_and_classificationAMS 6485 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-182-6176
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6875853 · 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
•
TOP RECESS DIAMETER: 0.394 INCHES MINIMUM AND 0.404 INCHES MAXIMUM IN
•
BOTTOM RECESS DIAMETER: 0.394 INCHES MINIMUM AND 0.404 INCHES MAXIMUM IN
•
HARDNESS RATING: 50.0 ROCKWELL C MINIMUM AND 56.0 ROCKWELL C MAXIMUM
•
TOP RECESS ANGLE: 90.0 DEGREES NOMINAL
•
STYLE DESIGNATOR: RECESSED BOTH SIDES
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6485 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.625 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.155 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
TOP RECESS DIAMETER0.394 INCHES MINIMUM AND 0.404 INCHES MAXIMUM IN
BOTTOM RECESS DIAMETER0.394 INCHES MINIMUM AND 0.404 INCHES MAXIMUM IN
HARDNESS RATING50.0 ROCKWELL C MINIMUM AND 56.0 ROCKWELL C MAXIMUM
TOP RECESS ANGLE90.0 DEGREES NOMINAL
STYLE DESIGNATORRECESSED BOTH SIDES
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6485 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.625 INCHES NOMINAL IN
MATERIAL THICKNESS0.155 INCHES NOMINAL IN
BOTTOM RECESS ANGLE90.0 DEGREES NOMINAL
SURFACE TREATMENTNICKEL AND CADMIUM 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 6875853?
6875853 is a WASHER,RECESSED.
What is the NSN for 6875853?
6875853 is cataloged in the U.S. Government catalog under NSN 5310-00-182-6176. 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.