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4589K81 — BUSHING,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

4589K81: BUSHING,PIPE.

The BUSHING,PIPE is a the manufacturer industrial component. Key specifications include material: PLASTIC, style_designator: OUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL), external_thread_size: 2-11-1/2, internal_thread_size: 1-1/2-11-1/2, ingested_liquid_approval: NOT APPROVED, external_thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-357-9121, 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
4589K81
NSN: 4730-01-357-9121
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialPLASTIC
style_designatorOUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL)
external_thread_size2-11-1/2
internal_thread_size1-1/2-11-1/2
ingested_liquid_approvalNOT APPROVED
external_thread_directionRIGHT-HAND
internal_thread_directionRIGHT-HAND
external_screw_thread_series_designatorNPT
internal_screw_thread_series_designatorNPT
NSN4730-01-357-9121
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4589K81 · 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
•
INGESTED LIQUID APPROVAL: NOT APPROVED
•
EXTERNAL THREAD SIZE: 2-11-1/2
•
INTERNAL THREAD SIZE: 1-1/2-11-1/2
•
MATERIAL: PLASTIC
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
INGESTED LIQUID APPROVALNOT APPROVED
EXTERNAL THREAD SIZE2-11-1/2
INTERNAL THREAD SIZE1-1/2-11-1/2
MATERIALPLASTIC
EXTERNAL THREAD DIRECTIONRIGHT-HAND
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

No substitute or cross-reference records for this part.

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 4589K81?
4589K81 is a BUSHING,PIPE.
What is the NSN for 4589K81?
4589K81 is cataloged in the U.S. Government catalog under NSN 4730-01-357-9121. This indicates validated use in U.S. government and defense supply chains.
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