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Technical Data Sheet
PartsTable / COMPONENT / 49304 FIND NO.4
49304 FIND NO.4 ✓ 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 49304 FIND NO.4 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-518-5825, 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
49304 FIND NO.4
NSN: 5310-01-518-5825
FSC: 5310
CAGE: 82978 — CHRYSLER CORP FLEET DIV FEDERAL GOVERNMENT VEHICLE SALES DEPT (USA)
SPECIFICATIONS
Part Number49304 FIND NO.4
NSN5310-01-518-5825
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 49304 FIND NO.4 · 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: 24
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
THREAD SERIES: UNF
•
MATERIAL: COPPER ALLOY OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281D FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONVALVE,HYTROL
THREAD QUANTITY PER INCH24
NOMINAL THREAD SIZE0.375 INCHES IN
PART NAME ASSIGNED BY CONTROLLING AGENCYSTEM NUT,SELF-LOCKING
THREAD SERIESUNF
MATERIALCOPPER ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281D FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
49304Interchangeable
interchangeable cross-reference
interchangeable
4820PL1290021Interchangeable
interchangeable cross-reference
interchangeable
5868843Interchangeable
interchangeable cross-reference
interchangeable
1 1/2" 100M-1KRInterchangeable
interchangeable cross-reference
interchangeable
20260601K 100M-1KRInterchangeable
interchangeable cross-reference
interchangeable
49304 ASSY 49304-01HInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 49304 FIND NO.4?
49304 FIND NO.4 is a 49304 FIND NO.4.
What parts can replace 49304 FIND NO.4?
There are 11 known substitutes for 49304 FIND NO.4: 49304, 4820PL1290021, 5868843 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 49304 FIND NO.4?
49304 FIND NO.4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-518-5825. 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