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AC2201 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

AC2201: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.385 INCHES NOMINAL IN, outside_diameter: 0.683 INCHES NOMINAL IN, style_designator: SPLIT HELICAL-RIGHT HAND, surface_treatment: ZINC OVERALL, material_thickness: 0.094 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-603-7877, 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
AC2201
NSN: 5310-01-603-7877
FSC: 5310 — Nuts and Washers
CAGE: L0782 — ARMATEC SURVIVABILITY CORP DIV ARMATEC SURVIVABILITY (CAN)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.385 INCHES NOMINAL IN
outside_diameter0.683 INCHES NOMINAL IN
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentZINC OVERALL
material_thickness0.094 INCHES NOMINAL IN
end_item_identification2541-01-561-0937 KIT, BALLISTIC PROTECTION UPGRADE (BPUP)
material_document_and_classificationSAE J403, 1055-1065 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyWASHER, LOCK
surface_treatment_document_and_classificationASTM B633, TYPE II ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-603-7877
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: AC2201 · 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: ASTM B633, TYPE II ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE J403, 1055-1065 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.683 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.094 INCHES NOMINAL IN
•
COLOR: YELLOW OVERALL
•
SURFACE TREATMENT: ZINC OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633, TYPE II ASSN STD SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J403, 1055-1065 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.683 INCHES NOMINAL IN
MATERIAL THICKNESS0.094 INCHES NOMINAL IN
COLORYELLOW OVERALL
SURFACE TREATMENTZINC OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER, LOCK
END ITEM IDENTIFICATION2541-01-561-0937 KIT, BALLISTIC PROTECTION UPGRADE (BPUP)
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 AC2201?
AC2201 is a WASHER,LOCK.
What is the NSN for AC2201?
AC2201 is cataloged in the U.S. Government catalog under NSN 5310-01-603-7877. 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.