PartsTable
Technical Data Sheet
Download PDF

43013-238 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

43013-238: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 464 OVERALL, thickness: 0.0625 INCHES NOMINAL IN, hole_diameter: 1.250 INCHES NOMINAL IN, outside_diameter: 2.375 INCHES NOMINAL IN, end_item_identification: SCUTTLE:MARINE HARDWARE & HULL DOORS, material_document_and_classification: ASTM B21,ALY 464 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-481-5807, 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
43013-238
NSN: 5310-01-481-5807
FSC: 5310 — Nuts and Washers
CAGE: 70876 — BATH IRON WORKS CORPORATION (USA)
SPECIFICATIONS
materialCOPPER ALLOY 464 OVERALL
thickness0.0625 INCHES NOMINAL IN
hole_diameter1.250 INCHES NOMINAL IN
outside_diameter2.375 INCHES NOMINAL IN
end_item_identificationSCUTTLE:MARINE HARDWARE & HULL DOORS
material_document_and_classificationASTM B21,ALY 464 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-481-5807
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 43013-238 · 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 DOCUMENT AND CLASSIFICATION: ASTM B21,ALY 464 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 2.375 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY 464 OVERALL
•
HOLE DIAMETER: 1.250 INCHES NOMINAL IN
•
THICKNESS: 0.0625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B21,ALY 464 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER2.375 INCHES NOMINAL IN
END ITEM IDENTIFICATIONSCUTTLE:MARINE HARDWARE & HULL DOORS
MATERIALCOPPER ALLOY 464 OVERALL
HOLE DIAMETER1.250 INCHES NOMINAL IN
THICKNESS0.0625 INCHES NOMINAL 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
Ready to buy 43013-238?
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 43013-238?
43013-238 is a WASHER,FLAT.
What is the NSN for 43013-238?
43013-238 is cataloged in the U.S. Government catalog under NSN 5310-01-481-5807. 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 — 43013-238

✓ 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.