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PartsTable / COMPONENT / DS-B-90305 ITEM 3D4
DS-B-90305 ITEM 3D4 ✓ 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. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-670-2352, 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
DS-B-90305 ITEM 3D4
NSN: 5310-01-670-2352
FSC: 5310
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
Part NumberDS-B-90305 ITEM 3D4
NSN5310-01-670-2352
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: DS-B-90305 ITEM 3D4 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
104.000.165Interchangeable
interchangeable cross-reference
interchangeable
19.000.262Interchangeable
interchangeable cross-reference
interchangeable
19.000.262PC5Interchangeable
interchangeable cross-reference
interchangeable
5E4790/28-0001Interchangeable
interchangeable cross-reference
interchangeable
30-1499Interchangeable
interchangeable cross-reference
interchangeable
30-1499-9Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DS-B-90305 ITEM 3D4?
DS-B-90305 ITEM 3D4 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace DS-B-90305 ITEM 3D4?
There are 13 known substitutes for DS-B-90305 ITEM 3D4: 104.000.165, 19.000.262, 19.000.262PC5 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DS-B-90305 ITEM 3D4?
DS-B-90305 ITEM 3D4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-670-2352. 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