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Technical Data Sheet
PartsTable / COMPONENT / 5310000503275
5310000503275 ✓ 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: 0.547 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC), locking_feature: FREE-RUNNING ALL METAL DESIGN OR PREVAILING TORQUE ALL METAL DESIGN OR PREVAILING TORQUE WITH NONMETALLIC INSERT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-050-3275, 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
5310000503275
NSN: 5310-00-050-3275
FSC: 5310
CAGE: A00AM — E.C.A ETABLISSEMENT CENTRAL DES APPROVISIONNEMENTS DES FORCES ARMEES ROYALES
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.547 INCHES NOMINAL IN
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featureFREE-RUNNING ALL METAL DESIGN OR PREVAILING TORQUE ALL METAL DESIGN OR PREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OR ZINC OVERALL
width_across_flats0.688 INCHES NOMINAL IN
nominal_thread_size0.375 INCHES IN
thread_quantity_per_inch16
material_document_and_classificationQQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-050-3275
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5310000503275 · 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
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
THREAD QUANTITY PER INCH: 16
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL OVERALL
•
WIDTH ACROSS FLATS: 0.688 INCHES NOMINAL IN
•
NUT HEIGHT: 0.547 INCHES NOMINAL IN
•
LOCKING FEATURE: FREE-RUNNING ALL METAL DESIGN OR PREVAILING TORQUE ALL METAL DESIGN OR PREVAILING TORQUE WITH NONMETALLIC INSERT
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.375 INCHES IN
THREAD QUANTITY PER INCH16
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
WIDTH ACROSS FLATS0.688 INCHES NOMINAL IN
NUT HEIGHT0.547 INCHES NOMINAL IN
LOCKING FEATUREFREE-RUNNING ALL METAL DESIGN OR PREVAILING TORQUE ALL METAL DESIGN OR PREVAILING TORQUE WITH NONMETALLIC INSERT
THREAD CLASS3B
NUT STYLEHEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
144178Interchangeable
interchangeable cross-reference
interchangeable
5315000820448Interchangeable
interchangeable cross-reference
interchangeable
P422Interchangeable
interchangeable cross-reference
interchangeable
TEMPRTAPEC1-2INInterchangeable
interchangeable cross-reference
interchangeable
101T1-2INX36YDInterchangeable
interchangeable cross-reference
interchangeable
403416Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5310000503275?
5310000503275 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 5310000503275?
There are 15 known substitutes for 5310000503275: 144178, 5315000820448, P422 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5310000503275?
5310000503275 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-050-3275. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026