PartsTable
Technical Data Sheet
PartsTable / COMPONENT / MS51922-5
MS51922-5 ✓ 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 NUT, nut_style: HEXAGON, nut_height: 0.298 INCHES MINIMUM AND 0.328 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 5310-00-877-5796, 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
MS51922-5
NSN: 5310-00-877-5796
FSC: 5310
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL NUT
nut_styleHEXAGON
nut_height0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
lubricationDRY FILM LUBRICANT
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class2B
thread_seriesUNF
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL EXCEPT INSERT
width_across_flats0.428 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
nominal_thread_size0.250 INCHES IN
NSN5310-00-877-5796
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS51922-5 · 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
•
THREAD DIRECTION: RIGHT-HAND
•
TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF
•
NUT STYLE: HEXAGON
•
NUT HEIGHT: 0.240 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
•
BEARING SURFACE FINISH: 125.0 MICROINCHES
•
COUNTERSINK ANGLE: 88.0 DEGREES NOMINAL NUT
•
THREAD SERIES: UNF
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
NUT STYLEHEXAGON
NUT HEIGHT0.240 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
BEARING SURFACE FINISH125.0 MICROINCHES
COUNTERSINK ANGLE88.0 DEGREES NOMINAL NUT
THREAD SERIESUNF
NOMINAL THREAD SIZE0.250 INCHES IN
SURFACE TREATMENTCADMIUM AND CHROMATE NUT
LUBRICATIONSOLUBLE LUBRICANT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
870125-1Interchangeable
interchangeable cross-reference
interchangeable
870125Interchangeable
interchangeable cross-reference
interchangeable
306700-2Interchangeable
interchangeable cross-reference
interchangeable
870125-00Interchangeable
interchangeable cross-reference
interchangeable
42N3E048Interchangeable
interchangeable cross-reference
interchangeable
524973Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy MS51922-5?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is MS51922-5?
MS51922-5 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace MS51922-5?
There are 28 known substitutes for MS51922-5: 870125-1, 870125, 306700-2 and 25 more. Substitute compatibility should be verified for your specific system.
Is MS51922-5 still available?
MS51922-5 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — MS51922-5

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026