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1013G64P1 — WASHER,CONVEX

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1013G64P1: WASHER,CONVEX.

The WASHER,CONVEX is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 2.880 INCHES MINIMUM AND 2.890 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES INNER, outside_diameter: 4.000 INCHES NOMINAL IN, style_designator: CONVEX, material_thickness: 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-171-0590, 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
1013G64P1
NSN: 5310-01-171-0590
FSC: 5310 — Nuts and Washers
CAGE: 01289 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter2.880 INCHES MINIMUM AND 2.890 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES INNER
outside_diameter4.000 INCHES NOMINAL IN
style_designatorCONVEX
material_thickness0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
material_document_and_classificationASTM A515,GRADE 55 ASSN STD SINGLE MATERIAL RESPONSE OR B4A8A,FSCM 01289 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-171-0590
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1013G64P1 · 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 INNER
•
STYLE DESIGNATOR: CONVEX
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A515,GRADE 55 ASSN STD SINGLE MATERIAL RESPONSE OR B4A8A,FSCM 01289 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 4.000 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 2.880 INCHES MINIMUM AND 2.890 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES INNER
STYLE DESIGNATORCONVEX
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A515,GRADE 55 ASSN STD SINGLE MATERIAL RESPONSE OR B4A8A,FSCM 01289 MFR REF SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER4.000 INCHES NOMINAL IN
MATERIAL THICKNESS0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
HOLE DIAMETER2.880 INCHES MINIMUM AND 2.890 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

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
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FREQUENTLY ASKED QUESTIONS
What is 1013G64P1?
1013G64P1 is a WASHER,CONVEX.
What is the NSN for 1013G64P1?
1013G64P1 is cataloged in the U.S. Government catalog under NSN 5310-01-171-0590. 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.