PartsTable
Technical Data Sheet
5310PL2178780 ✓ 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, nut_style: HEXAGON, nut_height: 0.169 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), locking_feature: PREVAILING TORQUE ALL METAL DESIGN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-157-8370, 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
5310PL2178780
NSN: 5310-01-157-8370
FSC: 5310
CAGE: 9009H — JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX (POL)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleHEXAGON
nut_height0.169 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
width_across_flats0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
nominal_thread_size0.190 INCHES IN
bearing_surface_typeFLAT
thread_quantity_per_inch32
material_document_and_classificationAMS5640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-157-8370
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5310PL2178780 · 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
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
MATERIAL: STEEL CORROSION RESISTING OVERALL
WIDTH ACROSS FLATS: 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH: 32
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
NOMINAL THREAD SIZE: 0.190 INCHES IN
BEARING SURFACE TYPE: FLAT
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3B
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
MATERIALSTEEL CORROSION RESISTING OVERALL
WIDTH ACROSS FLATS0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH32
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
NOMINAL THREAD SIZE0.190 INCHES IN
BEARING SURFACE TYPEFLAT
NUT STYLEHEXAGON
NUT HEIGHT0.169 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
F3C1032-1Interchangeable
interchangeable cross-reference
interchangeable
80014-1Interchangeable
interchangeable cross-reference
interchangeable
908299C1Interchangeable
interchangeable cross-reference
interchangeable
S1E10203-05 ITEM 20Interchangeable
interchangeable cross-reference
interchangeable
F3C10321-060Interchangeable
interchangeable cross-reference
interchangeable
4055T25P05Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5310PL2178780?
5310PL2178780 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 5310PL2178780?
There are 6 known substitutes for 5310PL2178780: F3C1032-1, 80014-1, 908299C1 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5310PL2178780?
5310PL2178780 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-157-8370. This indicates validated use in U.S. government and defense supply chains.
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