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HS306-612H — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

HS306-612H: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: RUBBER NEOPRENE OVERALL, hole_diameter: 0.105 INCHES MINIMUM IN, special_features: OD: 0.380-0.400", THICKNESS: .016", center_hole_shape_style: ROUND, end_item_identification: APACHE AH-64, ATTACK HELICOPTER. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-487-4466, 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
HS306-612H
NSN: 5310-01-487-4466
FSC: 5310 — Nuts and Washers
CAGE: 8V613 — THE BOEING COMPANY (USA)
SPECIFICATIONS
materialRUBBER NEOPRENE OVERALL
hole_diameter0.105 INCHES MINIMUM IN
special_featuresOD: 0.380-0.400", THICKNESS: .016"
center_hole_shape_styleROUND
end_item_identificationAPACHE AH-64, ATTACK HELICOPTER
NSN5310-01-487-4466
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: HS306-612H · 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
•
MATERIAL: RUBBER NEOPRENE OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.105 INCHES MINIMUM IN
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESOD: 0.380-0.400", THICKNESS: .016"
END ITEM IDENTIFICATIONAPACHE AH-64, ATTACK HELICOPTER
MATERIALRUBBER NEOPRENE OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.105 INCHES MINIMUM 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 HS306-612H?
HS306-612H is a WASHER,FLAT.
What is the NSN for HS306-612H?
HS306-612H is cataloged in the U.S. Government catalog under NSN 5310-01-487-4466. 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.