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12422608 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 23.4 MILLIMETERS NOMINAL MM, overall_height: 6.6 MILLIMETERS NOMINAL MM, hardness_rating: 72.0 ROCKWELL A MINIMUM AND 77.0 ROCKWELL A MAXIMUM, outside_diameter: 42.0 MILLIMETERS NOMINAL MM, special_features: HOLE DIAMETER 10.7 MM; OVERALL DIAMETER 21.0 MM; THICKNESS 2.5 MM MM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-501-3375, 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
12422608
NSN: 5310-01-501-3375
FSC: 5310
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter23.4 MILLIMETERS NOMINAL MM
overall_height6.6 MILLIMETERS NOMINAL MM
hardness_rating72.0 ROCKWELL A MINIMUM AND 77.0 ROCKWELL A MAXIMUM
outside_diameter42.0 MILLIMETERS NOMINAL MM
special_featuresHOLE DIAMETER 10.7 MM; OVERALL DIAMETER 21.0 MM; THICKNESS 2.5 MM MM
style_designatorTWO PIECE INTERLOCKING
surface_treatmentZINC OVERALL
end_item_identificationNSN 2320-01-549-8577, TWO WASHERS GLUED TOGETHER
asbestos_content_percentage0.0 NOMINAL
part_name_assigned_by_controlling_agencyWASHER, NORDLOCK
surface_treatment_document_and_classificationISO 2081 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-501-3375
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12422608 · 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
•
HOLE DIAMETER: 8.7 MILLIMETERS NOMINAL MM
•
OUTSIDE DIAMETER: 13.5 MILLIMETERS NOMINAL MM
•
HARDNESS RATING: 72.0 ROCKWELL A MINIMUM AND 77.0 ROCKWELL A MAXIMUM
•
SURFACE TREATMENT: ZINC OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ISO 2081 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER8.7 MILLIMETERS NOMINAL MM
OVERALL HEIGHT2.50 MILLIMETERS NOMINAL MM
END ITEM IDENTIFICATION2320-01-353-9098; HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)
OUTSIDE DIAMETER13.5 MILLIMETERS NOMINAL MM
HARDNESS RATING72.0 ROCKWELL A MINIMUM AND 77.0 ROCKWELL A MAXIMUM
SURFACE TREATMENTZINC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONISO 2081 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIALSTEEL OVERALL
STYLE DESIGNATORTWO PIECE INTERLOCKING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
L20-04-000Interchangeable
interchangeable cross-reference
interchangeable
L26-04-000Interchangeable
interchangeable cross-reference
interchangeable
BB100NNS26ITEM53Interchangeable
interchangeable cross-reference
interchangeable
1NL10Interchangeable
interchangeable cross-reference
interchangeable
NL10Interchangeable
interchangeable cross-reference
interchangeable
12422608Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12422608?
12422608 is a WASHER,LOCK.
What parts can replace 12422608?
There are 25 known substitutes for 12422608: L20-04-000, L26-04-000, BB100NNS26ITEM53 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12422608?
12422608 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-501-3375. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026