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MS21046C12L1 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

MS21046C12L1: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: HEXAGON, nut_height: 0.855 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNF, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-568-0713, 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
MS21046C12L1
NSN: 5310-01-568-0713
FSC: 5310 — Nuts and Washers
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleHEXAGON
nut_height0.855 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNF
thread_directionRIGHT-HAND
width_across_flats1.052 INCHES MINIMUM AND 1.064 INCHES MAXIMUM IN
nominal_thread_size0.750 INCHES IN
thread_quantity_per_inch16
criticality_code_justificationZZZY
NSN5310-01-568-0713
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS21046C12L1 · 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
•
WIDTH ACROSS FLATS: 1.052 INCHES MINIMUM AND 1.064 INCHES MAXIMUM IN
•
THREAD SERIES: UNF
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
•
NUT HEIGHT: 0.855 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN
•
NUT STYLE: HEXAGON
•
THREAD CLASS: 3B
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.052 INCHES MINIMUM AND 1.064 INCHES MAXIMUM IN
THREAD SERIESUNF
CRITICALITY CODE JUSTIFICATIONZZZY
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.750 INCHES IN
NUT HEIGHT0.855 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN
NUT STYLEHEXAGON
THREAD CLASS3B
THREAD QUANTITY PER INCH16
MATERIALSTEEL CORROSION RESISTING OVERALL
SUBSTITUTES & CROSS-REFERENCES 5
501-4457023 ITEM 23L1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
6503-158 ITEM 23Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
6503-158 ITEM 23L1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
501-4457023 ITEM 23Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS21046C12Reference 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 MS21046C12L1?
MS21046C12L1 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace MS21046C12L1?
There are 5 known substitutes for MS21046C12L1: 501-4457023 ITEM 23L1, 6503-158 ITEM 23, 6503-158 ITEM 23L1 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21046C12L1?
MS21046C12L1 is cataloged in the U.S. Government catalog under NSN 5310-01-568-0713. 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.