PartsTable
Technical Data Sheet
Download PDF

4307330 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

4307330: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include length: 15.00 MILLIMETERS NOMINAL MM, material: STEEL CORROSION RESISTING OVERALL, thickness: 1.40 MILLIMETERS MINIMUM AND 1.80 MILLIMETERS MAXIMUM MM, hole_diameter: 8.40 MILLIMETERS MINIMUM AND 8.62 MILLIMETERS MAXIMUM MM, overall_diameter: 14.57 MILLIMETERS MINIMUM AND 15.00 MILLIMETERS MAXIMUM MM, width_across_flats: 15.00 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-661-3489, 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
4307330
NSN: 5310-01-661-3489
FSC: 5310 — Nuts and Washers
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
length15.00 MILLIMETERS NOMINAL MM
materialSTEEL CORROSION RESISTING OVERALL
thickness1.40 MILLIMETERS MINIMUM AND 1.80 MILLIMETERS MAXIMUM MM
hole_diameter8.40 MILLIMETERS MINIMUM AND 8.62 MILLIMETERS MAXIMUM MM
overall_diameter14.57 MILLIMETERS MINIMUM AND 15.00 MILLIMETERS MAXIMUM MM
width_across_flats15.00 MILLIMETERS NOMINAL MM
peripheral_shape_styleRECTANGULAR
center_hole_shape_styleROUND
end_item_identification4210-01-622-0440; TRUCK, FIRE FIGHTING
cross-sectional_shape_styleRECTANGULAR
part_name_assigned_by_controlling_agencyWASHER, FLAT M8X15X1.6 SS
NSN5310-01-661-3489
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 4307330 · 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
•
WIDTH ACROSS FLATS: 15.00 MILLIMETERS NOMINAL MM
•
LENGTH: 15.00 MILLIMETERS NOMINAL MM
•
OVERALL DIAMETER: 14.57 MILLIMETERS MINIMUM AND 15.00 MILLIMETERS MAXIMUM MM
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: RECTANGULAR
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS15.00 MILLIMETERS NOMINAL MM
LENGTH15.00 MILLIMETERS NOMINAL MM
OVERALL DIAMETER14.57 MILLIMETERS MINIMUM AND 15.00 MILLIMETERS MAXIMUM MM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLERECTANGULAR
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER, FLAT M8X15X1.6 SS
END ITEM IDENTIFICATION4210-01-622-0440; TRUCK, FIRE FIGHTING
MATERIALSTEEL CORROSION RESISTING OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER8.40 MILLIMETERS MINIMUM AND 8.62 MILLIMETERS MAXIMUM MM
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: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 4307330?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 4307330?
4307330 is a WASHER,FLAT.
What is the NSN for 4307330?
4307330 is cataloged in the U.S. Government catalog under NSN 5310-01-661-3489. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 4307330

✓ 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.