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3M63C4-4 — NUT,SELF-LOCKING,PLATE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

3M63C4-4: NUT,SELF-LOCKING,PLATE.

The NUT,SELF-LOCKING,PLATE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: PLATE, nut_height: 0.460 INCHES MAXIMUM IN, nut_length: 1.038 INCHES MAXIMUM IN, lubrication: DRY FILM LUBRICANT, temp_rating: 450.0 FAHRENHEIT NOMINAL DEGF. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-421-6693, 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
3M63C4-4
NSN: 5310-00-421-6693
FSC: 5310 — Nuts and Washers
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_stylePLATE
nut_height0.460 INCHES MAXIMUM IN
nut_length1.038 INCHES MAXIMUM IN
lubricationDRY FILM LUBRICANT
temp_rating450.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
locking_featurePREVAILING TORQUE ALL METAL DESIGN
plate_thickness0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
features_providedFLOATING NUT
NSN5310-00-421-6693
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3M63C4-4 · 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
•
LUBRICATION: DRY FILM LUBRICANT
•
PLATE THICKNESS: 0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN
•
NUT LENGTH: 1.038 INCHES MAXIMUM IN
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
TEMP RATING: 450.0 FAHRENHEIT NOMINAL DEGF
•
MOUNTING HOLE ARRANGEMENT STYLE: 2 HOLES
•
MOUNTING HOLE DIAMETER: 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
•
FEATURES PROVIDED: FLOATING NUT
TECHNICAL CHARACTERISTICS
LUBRICATIONDRY FILM LUBRICANT
PLATE THICKNESS0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN
NUT LENGTH1.038 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
TEMP RATING450.0 FAHRENHEIT NOMINAL DEGF
MOUNTING HOLE ARRANGEMENT STYLE2 HOLES
MOUNTING HOLE DIAMETER0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
FEATURES PROVIDEDFLOATING NUT
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
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
F29337-31-4-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3M63C4-4?
3M63C4-4 is a NUT,SELF-LOCKING,PLATE.
What parts can replace 3M63C4-4?
There is 1 known substitute for 3M63C4-4: F29337-31-4-4. Substitute compatibility should be verified for your specific system.
What is the NSN for 3M63C4-4?
3M63C4-4 is cataloged in the U.S. Government catalog under NSN 5310-00-421-6693. 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.