PartsTable
Technical Data Sheet
MS21044N3 ✓ 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: PLASTIC NYLON LOCKING INSERT, nut_style: HEXAGON, nut_height: 0.281 INCHES NOMINAL IN, thread_class: 3B, locking_feature: PREVAILING TORQUE WITH METALLIC INSERT, thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-877-5797, 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
MS21044N3
NSN: 5310-00-877-5797
FSC: 5310
CAGE: A9271 — GORIZIANE GROUP SPA (ITA)
SPECIFICATIONS
materialPLASTIC NYLON LOCKING INSERT
nut_styleHEXAGON
nut_height0.281 INCHES NOMINAL IN
thread_class3B
locking_featurePREVAILING TORQUE WITH METALLIC INSERT
thread_directionRIGHT-HAND
width_across_flats0.375 INCHES NOMINAL IN
nominal_thread_size0.1900 INCHES IN
bearing_surface_typeFLAT
thread_quantity_per_inch32
part_name_assigned_by_controlling_agencyNYLON-INSERT HEX LOCKNUT
NSN5310-00-877-5797
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS21044N3 · 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 CLASS: 3B
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL EXCEPT INSERT
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
BEARING SURFACE FINISH: 125.0 MICROINCHES
TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
NOMINAL THREAD SIZE: 0.190 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3B
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL EXCEPT INSERT
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
BEARING SURFACE FINISH125.0 MICROINCHES
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
NOMINAL THREAD SIZE0.190 INCHES IN
END ITEM IDENTIFICATIONMULTIPLE LAUNCH ROCKET SYSTEM (MLRS); ARMORED MULTI-PURPOSE VEHICLE (AMPV); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE
WIDTH ACROSS FLATS0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 34
870124Interchangeable
interchangeable cross-reference
interchangeable
870124-1Interchangeable
interchangeable cross-reference
interchangeable
E1201-1-10Interchangeable
interchangeable cross-reference
interchangeable
853926Interchangeable
interchangeable cross-reference
interchangeable
32383Interchangeable
interchangeable cross-reference
interchangeable
474403PG925PC24Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS21044N3?
MS21044N3 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace MS21044N3?
There are 34 known substitutes for MS21044N3: 870124, 870124-1, E1201-1-10 and 31 more. Substitute compatibility should be verified for your specific system.
Is MS21044N3 still available?
MS21044N3 is currently cancelled.
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