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MS21063L4-8-7 — NUT ASSEMBLY,SELF-LOCKING,GANG C

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

MS21063L4-8-7: NUT ASSEMBLY,SELF-LOCKING,GANG C.

NUT ASSEMBLY,SELF-LOCKING,GANG C. Key specifications include nut_style: GANG CHANNEL, SELF LOCKING, lubrication: DRY FILM LUBRICANT, nut_spacing: 1.000 INCHES NOMINAL IN, temp_rating: 250.0 FAHRENHEIT MAXIMUM DEGF, thread_class: 3B, channel_style: STRAIGHT TYPE. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-504-7277, 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
MS21063L4-8-7
NSN: 5310-01-504-7277
FSC: 5310 — Nuts and Washers
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialSTEEL COMP 1035 OR STEEL COMP 1040 OR STEEL COMP 1050 OR STEEL COMP 1042 OR STEEL COMP 4130 OR STEEL COMP 4340 OR STEEL COMP 8740 NUT
nut_styleGANG CHANNEL, SELF LOCKING
lubricationDRY FILM LUBRICANT
nut_spacing1.000 INCHES NOMINAL IN
temp_rating250.0 FAHRENHEIT MAXIMUM DEGF
nut_quantity7
thread_class3B
channel_styleSTRAIGHT TYPE
overall_width0.516 INCHES MAXIMUM IN
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
channel_height0.281 INCHES MAXIMUM IN
overall_length5.176 INCHES MINIMUM AND 5.196 INCHES MAXIMUM IN
NSN5310-01-504-7277
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS21063L4-8-7 · 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: 7
•
TEMP RATING: 250.0 FAHRENHEIT MAXIMUM DEGF
•
HARDNESS RATING: 49.0 ROCKWELL C MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTMA29 ASSN STD 1ST MATERIAL RESPONSE OR ASTMA827 ASSN STD 2ND MATERIAL RESPONSE OR QQ-S-700 FED SPEC 3RD MATERIAL RESPONSE OR ASTMA29 ASSN STD 4TH MATERIAL RESPONSE OR ASTMA29 ASSN STD 5TH MATERIAL RESPONSE OR ASTMA29 ASSN STD ALL MATERIAL RESPONSES OR ASTMA29 ASSN STD 6TH MATERIAL RESPONSE NUT
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 QUANTITY7
TEMP RATING250.0 FAHRENHEIT MAXIMUM DEGF
HARDNESS RATING49.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONASTMA29 ASSN STD 1ST MATERIAL RESPONSE OR ASTMA827 ASSN STD 2ND MATERIAL RESPONSE OR QQ-S-700 FED SPEC 3RD MATERIAL RESPONSE OR ASTMA29 ASSN STD 4TH MATERIAL RESPONSE OR ASTMA29 ASSN STD 5TH MATERIAL RESPONSE OR ASTMA29 ASSN STD ALL MATERIAL RESPONSES OR ASTMA29 ASSN STD 6TH MATERIAL RESPONSE NUT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/1 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-250/4 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-250/12 FED SPEC 3RD MATERIAL RESPONSE OR QQ-A-250/13 FED SPEC 4TH MATERIAL RESPONSE CHANNEL
OVERALL LENGTH5.176 INCHES MINIMUM AND 5.196 INCHES MAXIMUM IN
OVERALL WIDTH0.516 INCHES MAXIMUM 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS21063L4-8-7?
MS21063L4-8-7 is a NUT ASSEMBLY,SELF-LOCKING,GANG C.
What is the NSN for MS21063L4-8-7?
MS21063L4-8-7 is cataloged in the U.S. Government catalog under NSN 5310-01-504-7277. 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.