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6863717 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6863717: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include thickness: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN, hole_diameter: 0.375 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN, heat_treatment: AS FABRICATED, surface_finish: 63.0 MICROINCHES ALL SURFACES, hardness_rating: 32.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C MAXIMUM, overall_diameter: 0.665 INCHES MINIMUM AND 0.685 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-602-7630, 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
6863717
NSN: 5310-00-602-7630
FSC: 5310 — Nuts and Washers
CAGE: 73342 — ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC (USA)
SPECIFICATIONS
thickness0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
hole_diameter0.375 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
heat_treatmentAS FABRICATED
surface_finish63.0 MICROINCHES ALL SURFACES
hardness_rating32.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C MAXIMUM
overall_diameter0.665 INCHES MINIMUM AND 0.685 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
material_document_and_classificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
NSN5310-00-602-7630
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6863717 · 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 FINISH: 63.0 MICROINCHES ALL SURFACES
•
OVERALL DIAMETER: 0.665 INCHES MINIMUM AND 0.685 INCHES MAXIMUM IN
•
HEAT TREATMENT: AS FABRICATED
•
HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
CENTER HOLE SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES ALL SURFACES
OVERALL DIAMETER0.665 INCHES MINIMUM AND 0.685 INCHES MAXIMUM IN
HEAT TREATMENTAS FABRICATED
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
PERIPHERAL SHAPE STYLEROUND
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.375 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
THICKNESS0.115 INCHES MINIMUM AND 0.135 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 1
EU43372Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6863717?
6863717 is a WASHER,FLAT.
What parts can replace 6863717?
There is 1 known substitute for 6863717: EU43372. Substitute compatibility should be verified for your specific system.
What is the NSN for 6863717?
6863717 is cataloged in the U.S. Government catalog under NSN 5310-00-602-7630. This indicates validated use in U.S. government and defense supply chains.
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