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PartsTable / COMPONENT / 223451
223451 ✓ Verified by PartsTable
Hama · 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

When in Rome, do as the Romans do. You should be well prepared when you go on holidays or a business trip e.g. with the appropriate plugs brought to you by Hama.

Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.455 INCHES MINIMUM AND 0.483 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.750 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES THREADS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-559-9111, 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
223451
NSN: 5310-00-559-9111
FSC: 5310
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.455 INCHES MINIMUM AND 0.483 INCHES MAXIMUM IN
thread_class2A A
thread_length1.750 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES THREADS
fastener_length2.156 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
hardness_rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentZINC AND CHROMATE OVERALL
width_between_flats1.100 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
end_item_identificationMRAP-RG-33 ARMORED UTILITY VEHICLE (AUV); ARMORED MULTI-PURPOSE VEHICLE (AMPV); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE
NSN5310-00-559-9111
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 223451 · Hama ⚠ 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: MIL-C-16232,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD QUANTITY PER INCH: 14
•
THREAD SERIES: UNF
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH ACROSS FLATS: 1.269 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
•
NUT HEIGHT: 0.890 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-16232,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD QUANTITY PER INCH14
THREAD SERIESUNF
THREAD DIRECTIONRIGHT-HAND
WIDTH ACROSS FLATS1.269 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
NUT HEIGHT0.890 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN
THREAD CLASS2B
NUT STYLECASTELLATED, HEXAGON
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
60360Interchangeable
interchangeable cross-reference
interchangeable
60360AXInterchangeable
interchangeable cross-reference
interchangeable
ASME B18.2.1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 223451?
223451 is a NUT,PLAIN,CASTELLATED,HEXAGON manufactured by Hama.
What parts can replace 223451?
There are 3 known substitutes for 223451: 60360, 60360AX, ASME B18.2.1. Substitute compatibility should be verified for your specific system.
Is 223451 still available?
223451 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026