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5268590 — ADAPTER BUSHING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

5268590: ADAPTER BUSHING.

The ADAPTER BUSHING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303, thickness: 0.250 INCHES NOMINAL IN, overall_length: 0.810 INCHES NOMINAL IN, surface_treatment: PASSIVATE, width_across_flats: 0.562 INCHES NOMINAL IN, male_end_thread_size: 1/4-18. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-359-2563, 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
5268590
NSN: 4730-01-359-2563
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 05825 — O T S I (USA)
SPECIFICATIONS
materialSTEEL COMP 303
thickness0.250 INCHES NOMINAL IN
overall_length0.810 INCHES NOMINAL IN
surface_treatmentPASSIVATE
width_across_flats0.562 INCHES NOMINAL IN
male_end_thread_size1/4-18
male_end_thread_class2A A
female_end_thread_size1/4-20
male_end_thread_length0.402 INCHES NOMINAL IN
female_end_thread_class2B
female_end_thread_length0.375 INCHES NOMINAL IN
wrenching_facility_shapeHEXAGON
NSN4730-01-359-2563
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5268590 · 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
•
WIDTH ACROSS FLATS: 0.562 INCHES NOMINAL IN
•
MALE END THREAD SIZE: 1/4-18
•
FEMALE END THREAD LENGTH: 0.375 INCHES NOMINAL IN
•
FEMALE END THREAD CLASS: 2B
•
MALE END THREAD DIRECTION: RIGHT-HAND
•
FEMALE END THREAD SIZE: 1/4-20
•
WRENCHING FACILITY SHAPE: HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.562 INCHES NOMINAL IN
MALE END THREAD SIZE1/4-18
FEMALE END THREAD LENGTH0.375 INCHES NOMINAL IN
FEMALE END THREAD CLASS2B
OVERALL LENGTH0.810 INCHES NOMINAL IN
MALE END THREAD DIRECTIONRIGHT-HAND
FEMALE END THREAD SIZE1/4-20
WRENCHING FACILITY SHAPEHEXAGON
MALE END SCREW THREAD SERIES DESIGNATORNPT
SURFACE TREATMENTPASSIVATE
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 5268590?
5268590 is a ADAPTER BUSHING.
What is the NSN for 5268590?
5268590 is cataloged in the U.S. Government catalog under NSN 4730-01-359-2563. 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.