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03A250 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

03A250: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL, thickness: 0.140 INCHES NOMINAL IN, hole_diameter: 0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, overall_diameter: 1.110 INCHES MINIMUM AND 1.130 INCHES MAXIMUM IN, special_features: TEMPERATURE RATING 450.0 DEGREES FAHRENHEIT, surface_treatment: OXIDE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-346-0388, 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
03A250
NSN: 5310-01-346-0388
NIINs: 013460388, 014243554
FSC: 5310 — Nuts and Washers
CAGE: 14153 — DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA (USA)
SPECIFICATIONS
materialSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL
thickness0.140 INCHES NOMINAL IN
hole_diameter0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
overall_diameter1.110 INCHES MINIMUM AND 1.130 INCHES MAXIMUM IN
special_featuresTEMPERATURE RATING 450.0 DEGREES FAHRENHEIT
surface_treatmentOXIDE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationMIL-S-5059 MIL SPEC ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationMIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-346-0388
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 03A250 · 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
SUBSTITUTES & CROSS-REFERENCES 1
03A250D26C75Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 03A250?
03A250 is a WASHER,FLAT.
What parts can replace 03A250?
There is 1 known substitute for 03A250: 03A250D26C75. Substitute compatibility should be verified for your specific system.
What is the NSN for 03A250?
03A250 is cataloged in the U.S. Government catalog under NSN 5310-01-346-0388. 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.