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Technical Data Sheet
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R5520405-568 — CAP,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

R5520405-568: CAP,PIPE.

The CAP,PIPE is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4730-01-722-4155, 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
R5520405-568
NSN: 4730-01-722-4155
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
Part NumberR5520405-568
NSN4730-01-722-4155
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: R5520405-568 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 3
8841614/SHEET 16 ITEM 568Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
563-8841614Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LSA001764-568Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is R5520405-568?
R5520405-568 is a CAP,PIPE.
What parts can replace R5520405-568?
There are 3 known substitutes for R5520405-568: 8841614/SHEET 16 ITEM 568, 563-8841614, LSA001764-568. Substitute compatibility should be verified for your specific system.
What is the NSN for R5520405-568?
R5520405-568 is cataloged in the U.S. Government catalog under NSN 4730-01-722-4155. 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.