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12505522 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12505522: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, outside_diameter: 57.6 MILLIMETERS NOMINAL MM, style_designator: FLAT EXTERNAL TEETH, material_thickness: 1.9 MILLIMETERS NOMINAL MM, end_item_identification: 2320-01-549-8565 TRUCK, CARGO, part_name_assigned_by_controlling_agency: WASHER, SPANNER. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-567-8522, 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
12505522
NSN: 5310-01-567-8522
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
outside_diameter57.6 MILLIMETERS NOMINAL MM
style_designatorFLAT EXTERNAL TEETH
material_thickness1.9 MILLIMETERS NOMINAL MM
end_item_identification2320-01-549-8565 TRUCK, CARGO
part_name_assigned_by_controlling_agencyWASHER, SPANNER
NSN5310-01-567-8522
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12505522 · 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
•
STYLE DESIGNATOR: FLAT EXTERNAL TEETH
•
OUTSIDE DIAMETER: 57.6 MILLIMETERS NOMINAL MM
•
MATERIAL THICKNESS: 1.9 MILLIMETERS NOMINAL MM
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORFLAT EXTERNAL TEETH
OUTSIDE DIAMETER57.6 MILLIMETERS NOMINAL MM
MATERIAL THICKNESS1.9 MILLIMETERS NOMINAL MM
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER, SPANNER
END ITEM IDENTIFICATION2320-01-549-8565 TRUCK, CARGO
MATERIALSTEEL OVERALL
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 12505522?
12505522 is a WASHER,LOCK.
What is the NSN for 12505522?
12505522 is cataloged in the U.S. Government catalog under NSN 5310-01-567-8522. 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.