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Technical Data Sheet
PartsTable / COMPONENT / 5104-8-3
5104-8-3 ✓ 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 O-RING is a the manufacturer industrial component. Key specifications include end_item_identification: DLA/GSA MANAGED ITEMS THAT CANNOT BE IDENTIFIED TO A SPECIFICS ARMY WEAPONS SYSTEMS/END ITEM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-353-4629, 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
5104-8-3
NSN: 5310-00-353-4629
FSC: 5310
CAGE: 81336 — CHIEF OF ENGINEERS DEPT OF ARMY (USA)
SPECIFICATIONS
end_item_identificationDLA/GSA MANAGED ITEMS THAT CANNOT BE IDENTIFIED TO A SPECIFICS ARMY WEAPONS SYSTEMS/END ITEM
NSN5310-00-353-4629
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5104-8-3 · 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: STEEL CORROSION RESISTING OVERALL
•
THREAD SERIES: UNF
•
THREAD QUANTITY PER INCH: 24
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
FABRICATION METHOD: FORGED
•
WING SPREAD WIDTH: 1.500 INCHES NOMINAL IN
•
NUT STYLE: WING
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL CORROSION RESISTING OVERALL
THREAD SERIESUNF
THREAD QUANTITY PER INCH24
NOMINAL THREAD SIZE0.312 INCHES IN
FABRICATION METHODFORGED
OVERALL HEIGHT0.656 INCHES NOMINAL IN
WING SPREAD WIDTH1.500 INCHES NOMINAL IN
NUT STYLEWING
THREAD DIRECTIONRIGHT-HAND
BODY DIAMETER0.594 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
A-1-80Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-14652BInterchangeable
interchangeable cross-reference
interchangeable
MIL-I-14652Interchangeable
interchangeable cross-reference
interchangeable
MS28775-214Interchangeable
interchangeable cross-reference
interchangeable
PRP568-214-4067-70Interchangeable
interchangeable cross-reference
interchangeable
7368260Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5104-8-3?
5104-8-3 is a O-RING.
What parts can replace 5104-8-3?
There are 12 known substitutes for 5104-8-3: A-1-80, MIL-DTL-14652B, MIL-I-14652 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5104-8-3?
5104-8-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-353-4629. 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