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PartsTable / COMPONENT / 924J624 ITEM 78
924J624 ITEM 78 ✓ 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 PIN,SPRING is a the manufacturer industrial component. Key specifications include diameter: 0.125 INCHES NOMINAL IN, material: STEEL COMP 420 OVERALL, overall_length: 0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN, hardness_rating: 43.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM OVERALL, style_designator: SLOTTED, surface_treatment: PASSIVATE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-167-4159, 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
924J624 ITEM 78
NSN: 5315-01-167-4159
FSC: 5315
CAGE: 94259 — FLUOR MARINE PROPULSION, LLC (USA)
SPECIFICATIONS
diameter0.125 INCHES NOMINAL IN
materialSTEEL COMP 420 OVERALL
overall_length0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
hardness_rating43.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM OVERALL
style_designatorSLOTTED
surface_treatmentPASSIVATE OVERALL
material_thickness0.028 INCHES NOMINAL IN
special_test_featuresSPECIAL QUALITY CONTROL TESTING
criticality_code_justificationZZZY
material_document_and_classificationAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
reference_number_differentiating_characteristicsAS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION
NSN5315-01-167-4159
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 924J624 ITEM 78 · 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
•
MATERIAL THICKNESS: 0.028 INCHES NOMINAL IN
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION
•
SPECIAL TEST FEATURES: SPECIAL QUALITY CONTROL TESTING
•
HARDNESS RATING: 43.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
DIAMETER: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
MATERIAL THICKNESS0.028 INCHES NOMINAL IN
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION
SPECIAL TEST FEATURESSPECIAL QUALITY CONTROL TESTING
HARDNESS RATING43.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
CRITICALITY CODE JUSTIFICATIONZZZY
DIAMETER0.125 INCHES NOMINAL IN
STYLE DESIGNATORSLOTTED
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
52391-10Interchangeable
interchangeable cross-reference
interchangeable
79-028-125-0625Interchangeable
interchangeable cross-reference
interchangeable
BA98203-52Interchangeable
interchangeable cross-reference
interchangeable
SSP125-0625Interchangeable
interchangeable cross-reference
interchangeable
9353-00-1900Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 924J624 ITEM 78?
924J624 ITEM 78 is a PIN,SPRING.
What parts can replace 924J624 ITEM 78?
There are 5 known substitutes for 924J624 ITEM 78: 52391-10, 79-028-125-0625, BA98203-52 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 924J624 ITEM 78?
924J624 ITEM 78 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-167-4159. 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