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A60A1250 — WASHER,FINISHING

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

A60A1250: WASHER,FINISHING.

The WASHER,FINISHING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OVERALL, hole_diameter: 0.256 INCHES MINIMUM AND 0.258 INCHES MAXIMUM IN, outside_diameter: 0.440 INCHES MINIMUM AND 0.446 INCHES MAXIMUM IN, style_designator: FINISHING, surface_treatment: PASSIVATE OVERALL, material_thickness: 0.004 INCHES MINIMUM AND 0.008 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-030-9221, 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
A60A1250
NSN: 5310-01-030-9221
FSC: 5310 — Nuts and Washers
CAGE: 3H889 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OVERALL
hole_diameter0.256 INCHES MINIMUM AND 0.258 INCHES MAXIMUM IN
outside_diameter0.440 INCHES MINIMUM AND 0.446 INCHES MAXIMUM IN
style_designatorFINISHING
surface_treatmentPASSIVATE OVERALL
material_thickness0.004 INCHES MINIMUM AND 0.008 INCHES MAXIMUM IN
material_document_and_classificationMIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationES-F59-2,FSCM 92003 MFR REF SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-030-9221
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A60A1250 · 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 TREATMENT DOCUMENT AND CLASSIFICATION: ES-F59-2,FSCM 92003 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: FINISHING
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.440 INCHES MINIMUM AND 0.446 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.004 INCHES MINIMUM AND 0.008 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 302 OVERALL
•
HOLE DIAMETER: 0.256 INCHES MINIMUM AND 0.258 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONES-F59-2,FSCM 92003 MFR REF SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORFINISHING
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.440 INCHES MINIMUM AND 0.446 INCHES MAXIMUM IN
MATERIAL THICKNESS0.004 INCHES MINIMUM AND 0.008 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 302 OVERALL
HOLE DIAMETER0.256 INCHES MINIMUM AND 0.258 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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A60A1250?
A60A1250 is a WASHER,FINISHING.
What is the NSN for A60A1250?
A60A1250 is cataloged in the U.S. Government catalog under NSN 5310-01-030-9221. 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.