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98370A035 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

98370A035: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include length: 1.375 INCHES NOMINAL IN, material: STEEL OVERALL, center_hole_width: 0.656 INCHES NOMINAL IN, peripheral_shape_style: ELLIPTICAL, center_hole_shape_style: ELLIPTICAL, end_item_identification: NSN: 6605-01-515-4610. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-523-6783, 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
98370A035
NSN: 5310-01-523-6783
FSC: 5310 — Nuts and Washers
CAGE: 2V507 — MCMASTER-CARR SUPPLY COMPANY (USA)
SPECIFICATIONS
length1.375 INCHES NOMINAL IN
materialSTEEL OVERALL
center_hole_width0.656 INCHES NOMINAL IN
peripheral_shape_styleELLIPTICAL
center_hole_shape_styleELLIPTICAL
end_item_identificationNSN: 6605-01-515-4610
part_name_assigned_by_controlling_agencyFINNISHED FLAT WASHER
NSN5310-01-523-6783
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 98370A035 · 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
•
CENTER HOLE WIDTH: 0.656 INCHES NOMINAL IN
•
LENGTH: 1.375 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: ELLIPTICAL
•
MATERIAL: STEEL OVERALL
•
CENTER HOLE SHAPE STYLE: ELLIPTICAL
TECHNICAL CHARACTERISTICS
CENTER HOLE WIDTH0.656 INCHES NOMINAL IN
LENGTH1.375 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEELLIPTICAL
PART NAME ASSIGNED BY CONTROLLING AGENCYFINNISHED FLAT WASHER
END ITEM IDENTIFICATIONNSN: 6605-01-515-4610
MATERIALSTEEL OVERALL
CENTER HOLE SHAPE STYLEELLIPTICAL
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 98370A035?
98370A035 is a WASHER,FLAT.
What is the NSN for 98370A035?
98370A035 is cataloged in the U.S. Government catalog under NSN 5310-01-523-6783. 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.