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Technical Data Sheet

MS21083-004 — Technical Data Sheet

✓ 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 CORROSION RESISTING OVERALL EXCEPT INSERT, nut_style: HEXAGON, nut_height: 0.125 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNJC. This part is cataloged in the Federal Logistics Information System under NSN 5310-00-939-0849, 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
MS21083-004
NSN: 5310-00-939-0849
FSC: 5310
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL EXCEPT INSERT
nut_styleHEXAGON
nut_height0.125 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNJC
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
countersink_angle88.0 DEGREES NOMINAL NUT
surface_treatmentPASSIVATE OVERALL EXCEPT INSERT
width_across_flats0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
nominal_thread_size0.112 INCHES IN
NSN5310-00-939-0849
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS21083-004 · 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
•
MATERIAL: PLASTIC POLYAMIDE NYLON LOCKING INSERT
•
SURFACE TREATMENT: PASSIVATE OVERALL EXCEPT INSERT
•
BEARING SURFACE FINISH: 125.0 MICROINCHES
•
THREAD QUANTITY PER INCH: 40
•
WIDTH ACROSS FLATS: 0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
•
NOMINAL THREAD SIZE: 0.112 INCHES IN
TECHNICAL CHARACTERISTICS
MATERIALPLASTIC POLYAMIDE NYLON LOCKING INSERT
SURFACE TREATMENTPASSIVATE OVERALL EXCEPT INSERT
MATERIALSTEEL CORROSION RESISTING OVERALL EXCEPT INSERT
BEARING SURFACE FINISH125.0 MICROINCHES
THREAD QUANTITY PER INCH40
WIDTH ACROSS FLATS0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
NOMINAL THREAD SIZE0.112 INCHES IN
END ITEM IDENTIFICATIONMULTIPLE LAUNCH ROCKET SYSTEM (MLRS)
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
THREAD SERIESUNJC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
5M.3033.220.05InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MS35216-15InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2012736InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1287741-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
57A5A28-2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
272.394.003InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS21083-004?
MS21083-004 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace MS21083-004?
There are 13 known substitutes for MS21083-004: 5M.3033.220.05, MS35216-15, 2012736 and 10 more. Substitute compatibility should be verified for your specific system.
Is MS21083-004 still available?
MS21083-004 is currently cancelled.
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