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PartsTable / COMPONENT / 78-3502 ITEM 2
78-3502 ITEM 2 ✓ 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 PIN,STRAIGHT,HEADLESS 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 5315-01-669-2951, 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
78-3502 ITEM 2
NSN: 5315-01-669-2951
FSC: 5315
CAGE: 0W357 — PDI GROUND SUPPORT SYSTEMS, INC. (USA)
SPECIFICATIONS
Part Number78-3502 ITEM 2
NSN5315-01-669-2951
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 78-3502 ITEM 2 · 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 5
37094Interchangeable
interchangeable cross-reference
interchangeable
54161-1Interchangeable
interchangeable cross-reference
interchangeable
8846Interchangeable
interchangeable cross-reference
interchangeable
EV4145EInterchangeable
interchangeable cross-reference
interchangeable
5416-12Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 78-3502 ITEM 2?
78-3502 ITEM 2 is a PIN,STRAIGHT,HEADLESS.
What parts can replace 78-3502 ITEM 2?
There are 5 known substitutes for 78-3502 ITEM 2: 37094, 54161-1, 8846 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 78-3502 ITEM 2?
78-3502 ITEM 2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-669-2951. 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