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MS21046C06E — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

MS21046C06E: 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: 0.160 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN, temp_rating: 800.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNJC. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-424-3841, 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
MS21046C06E
NSN: 5310-01-424-3841
FSC: 5310 — Nuts and Washers
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleHEXAGON
nut_height0.160 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
temp_rating800.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNJC
locking_featurePREVAILING TORQUE ALL METAL DESIGN
special_featuresELLIPTICAL LOCK
thread_directionRIGHT-HAND
precious_materialSILVER
surface_treatmentSILVER OVERALL
width_across_flats0.306 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
NSN5310-01-424-3841
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS21046C06E · 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: 0.306 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
•
THREAD SERIES: UNJC
•
PRECIOUS MATERIAL: SILVER
•
TEMP RATING: 800.0 FAHRENHEIT NOMINAL DEGF
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
•
NUT HEIGHT: 0.160 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.306 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
THREAD SERIESUNJC
PRECIOUS MATERIALSILVER
TEMP RATING800.0 FAHRENHEIT NOMINAL DEGF
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.138 INCHES IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT0.160 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
SPECIAL FEATURESELLIPTICAL LOCK
SURFACE TREATMENTSILVER OVERALL
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
938.07.68.202Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS21046C06E?
MS21046C06E is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace MS21046C06E?
There is 1 known substitute for MS21046C06E: 938.07.68.202. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21046C06E?
MS21046C06E is cataloged in the U.S. Government catalog under NSN 5310-01-424-3841. 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.