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30191000 ✓ 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 nominal_thread_size: 0.750 INCHES IN, end_item_identification: 2320-01-304-2277 AND 2320-01-304-2278 PLS (PALLETIZED LOADING SYSTEM), thread_quantity_per_inch: 16. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-178-5976, 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
30191000
NSN: 5310-01-178-5976
FSC: 5310
CAGE: 28158 — HME, INC. DBA HME AHRENS-FOX (USA)
SPECIFICATIONS
nominal_thread_size0.750 INCHES IN
end_item_identification2320-01-304-2277 AND 2320-01-304-2278 PLS (PALLETIZED LOADING SYSTEM)
thread_quantity_per_inch16
NSN5310-01-178-5976
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 30191000 · 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 QUANTITY PER INCH: 16
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH16
NOMINAL THREAD SIZE0.750 INCHES IN
END ITEM IDENTIFICATION2320-01-304-2277 AND 2320-01-304-2278 PLS (PALLETIZED LOADING SYSTEM)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
150-570PC191Interchangeable
interchangeable cross-reference
interchangeable
30-191Interchangeable
interchangeable cross-reference
interchangeable
141275Interchangeable
interchangeable cross-reference
interchangeable
6 MRT 4N-BInterchangeable
interchangeable cross-reference
interchangeable
6-4-6RBZBInterchangeable
interchangeable cross-reference
interchangeable
600-3TMTInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 30191000?
30191000 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 30191000?
There are 13 known substitutes for 30191000: 150-570PC191, 30-191, 141275 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 30191000?
30191000 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-178-5976. 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