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0624CC30 — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

0624CC30: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: STEEL COMP 1137 OVERALL, nut_style: HEXAGON, thread_class: 3B, thread_series: UNF, overall_height: 0.565 INCHES MAXIMUM IN, locking_feature: FREE-RUNNING ALL METAL DESIGN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-582-6785, 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
0624CC30
NSN: 5310-00-582-6785
FSC: 5310 — Nuts and Washers
CAGE: 83324 — HOWMET GLOBAL FASTENING SYSTEMS INC DIV ROSAN PRODUCTS (USA)
SPECIFICATIONS
materialSTEEL COMP 1137 OVERALL
nut_styleHEXAGON
thread_class3B
thread_seriesUNF
overall_height0.565 INCHES MAXIMUM IN
locking_featureFREE-RUNNING ALL METAL DESIGN
thread_directionRIGHT-HAND
washer_thickness0.097 INCHES MINIMUM AND 0.107 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
width_across_flats0.552 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
nominal_thread_size0.375 INCHES IN
washer_outside_diameter0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
NSN5310-00-582-6785
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 0624CC30 · 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
•
WASHER OUTSIDE DIAMETER: 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 0.552 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
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SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
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THREAD SERIES: UNF
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WASHER THICKNESS: 0.097 INCHES MINIMUM AND 0.107 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-866 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.565 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.552 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNF
WASHER THICKNESS0.097 INCHES MINIMUM AND 0.107 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-866 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.375 INCHES IN
LOCKING FEATUREFREE-RUNNING ALL METAL DESIGN
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 1
5310PL0842049Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 0624CC30?
0624CC30 is a NUT,SELF-LOCKING,EXTENDED WASHER.
What parts can replace 0624CC30?
There is 1 known substitute for 0624CC30: 5310PL0842049. Substitute compatibility should be verified for your specific system.
What is the NSN for 0624CC30?
0624CC30 is cataloged in the U.S. Government catalog under NSN 5310-00-582-6785. 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.