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MS21063L5-12 — NUT ASSEMBLY,SELF-LOCKING,GANG C

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

MS21063L5-12: NUT ASSEMBLY,SELF-LOCKING,GANG C.

NUT ASSEMBLY,SELF-LOCKING,GANG C. Key specifications include material: STEEL NUT, nut_style: GANG CHANNEL, SELF LOCKING, lubrication: DRY FILM LUBRICANT, nut_spacing: 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT MAXIMUM DEGF, nut_quantity: 48. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-915-8019, 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
MS21063L5-12
NSN: 5310-00-915-8019
FSC: 5310 — Nuts and Washers
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL NUT
nut_styleGANG CHANNEL, SELF LOCKING
lubricationDRY FILM LUBRICANT
nut_spacing1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT MAXIMUM DEGF
nut_quantity48
thread_class3B
channel_styleSTRAIGHT TYPE
overall_width0.609 INCHES MAXIMUM IN
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
channel_height0.328 INCHES MAXIMUM IN
overall_length72.000 INCHES NOMINAL IN
NSN5310-00-915-8019
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS21063L5-12 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE NUT
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
NUT QUANTITY: 48
•
TEMP RATING: 250.0 FAHRENHEIT MAXIMUM DEGF
•
NUT COUNTERBORE DEPTH: 0.062 INCHES MINIMUM NUT IN
TECHNICAL CHARACTERISTICS
LUBRICATIONDRY FILM LUBRICANT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE NUT
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
NUT QUANTITY48
TEMP RATING250.0 FAHRENHEIT MAXIMUM DEGF
OVERALL LENGTH72.000 INCHES NOMINAL IN
OVERALL WIDTH0.609 INCHES MAXIMUM IN
NUT COUNTERBORE DEPTH0.062 INCHES MINIMUM NUT IN
FEATURES PROVIDEDFLOATING NUT
CHANNEL HEIGHT0.328 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
10121823Reference 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 MS21063L5-12?
MS21063L5-12 is a NUT ASSEMBLY,SELF-LOCKING,GANG C.
What parts can replace MS21063L5-12?
There is 1 known substitute for MS21063L5-12: 10121823. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21063L5-12?
MS21063L5-12 is cataloged in the U.S. Government catalog under NSN 5310-00-915-8019. 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.