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R5520402-4 — PIN,STRAIGHT,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

R5520402-4: PIN,STRAIGHT,HEADLESS.

The PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5315-01-713-9852, 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
R5520402-4
NSN: 5315-01-713-9852
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
Part NumberR5520402-4
NSN5315-01-713-9852
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: R5520402-4 · 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
SUBSTITUTES & CROSS-REFERENCES 5
R5520601-63Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
8842381Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
836450Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
8842381/PAGE 24Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LOA022823-63Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is R5520402-4?
R5520402-4 is a PIN,STRAIGHT,HEADLESS.
What parts can replace R5520402-4?
There are 5 known substitutes for R5520402-4: R5520601-63, 8842381, 836450 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R5520402-4?
R5520402-4 is cataloged in the U.S. Government catalog under NSN 5315-01-713-9852. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.