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3518645 — BUSHING,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

3518645: BUSHING,PIPE.

The BUSHING,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, special_features: WRENCHING FACILITY INCLUDED, style_designator: OUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL), surface_treatment: PASSIVATE, external_thread_size: 0.750 INCH IN, internal_thread_size: 0.500 INCH IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-498-5050, 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
3518645
NSN: 4730-01-498-5050
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
special_featuresWRENCHING FACILITY INCLUDED
style_designatorOUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL)
surface_treatmentPASSIVATE
external_thread_size0.750 INCH IN
internal_thread_size0.500 INCH IN
end_item_identification2320-01-097-0249
external_thread_directionRIGHT-HAND
internal_thread_directionRIGHT-HAND
external_screw_thread_series_designatorNPT
internal_screw_thread_series_designatorNPT
part_name_assigned_by_controlling_agencyITEM FROM 389-82, 449-86
NSN4730-01-498-5050
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3518645 · 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
KEY FEATURES
•
INTERNAL SCREW THREAD SERIES DESIGNATOR: NPT
•
INTERNAL THREAD DIRECTION: RIGHT-HAND
•
STYLE DESIGNATOR: OUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL)
•
EXTERNAL SCREW THREAD SERIES DESIGNATOR: NPT
•
EXTERNAL THREAD SIZE: 0.750 INCH IN
•
SURFACE TREATMENT: PASSIVATE
TECHNICAL CHARACTERISTICS
INTERNAL SCREW THREAD SERIES DESIGNATORNPT
INTERNAL THREAD DIRECTIONRIGHT-HAND
STYLE DESIGNATOROUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL)
EXTERNAL SCREW THREAD SERIES DESIGNATORNPT
EXTERNAL THREAD SIZE0.750 INCH IN
SPECIAL FEATURESWRENCHING FACILITY INCLUDED
SURFACE TREATMENTPASSIVATE
PART NAME ASSIGNED BY CONTROLLING AGENCYITEM FROM 389-82, 449-86
END ITEM IDENTIFICATION2320-01-097-0249
INTERNAL THREAD SIZE0.500 INCH IN
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 1
057-290001Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 3518645?
3518645 is a BUSHING,PIPE.
What parts can replace 3518645?
There is 1 known substitute for 3518645: 057-290001. Substitute compatibility should be verified for your specific system.
What is the NSN for 3518645?
3518645 is cataloged in the U.S. Government catalog under NSN 4730-01-498-5050. 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.