PartsTable
Technical Data Sheet
MS51922-57 ✓ Verified by PartsTable
· NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.617 INCHES MINIMUM AND 0.827 INCHES MAXIMUM IN, lubrication: DRY FILM LUBRICANT, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 2B. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-067-6356, 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
MS51922-57
NSN: 5310-00-067-6356
FSC: 5310
CAGE: A9271 — GORIZIANE GROUP SPA (ITA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.617 INCHES MINIMUM AND 0.827 INCHES MAXIMUM IN
lubricationDRY FILM LUBRICANT
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
width_across_flats1.088 INCHES MINIMUM AND 1.127 INCHES MAXIMUM IN
nominal_thread_size0.750 INCHES IN
NSN5310-00-067-6356
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS51922-57 · 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
BEARING SURFACE FINISH: 125.0 MICROINCHES
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS: 1.088 INCHES MINIMUM AND 1.127 INCHES MAXIMUM IN
NOMINAL THREAD SIZE: 0.750 INCHES IN
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
THREAD QUANTITY PER INCH: 10
LUBRICATION: DRY FILM LUBRICANT
TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF
TECHNICAL CHARACTERISTICS (FLIS)
BEARING SURFACE FINISH125.0 MICROINCHES
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS1.088 INCHES MINIMUM AND 1.127 INCHES MAXIMUM IN
NOMINAL THREAD SIZE0.750 INCHES IN
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
THREAD QUANTITY PER INCH10
LUBRICATIONDRY FILM LUBRICANT
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
THREAD CLASS2B
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
E5BS524CCInterchangeable
Same NIIN cross-reference
interchangeable
SK-2000-9Interchangeable
Same NIIN cross-reference
interchangeable
E6BS624CCInterchangeable
Same NIIN cross-reference
interchangeable
M45913/2-12CG5CInterchangeable
Same NIIN cross-reference
interchangeable
LT-131-7Interchangeable
Same NIIN cross-reference
interchangeable
5310000676356Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51922-57?
MS51922-57 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace MS51922-57?
There are 8 known substitutes for MS51922-57: E5BS524CC, SK-2000-9, E6BS624CC and 5 more. Substitute compatibility should be verified for your specific system.
Is MS51922-57 still available?
MS51922-57 is currently cancelled.
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