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4 XHBU2-S — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

4 XHBU2-S: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL BODY, style_designator: COUPLING TUBE W/BULKHEAD UNION, end_item_identification: TRUCK,LIFT,FORK NSN 3930-01-553-6676, nominal_outside_diameter: 0.250 INCHES FIRST END IN, part_name_assigned_by_controlling_agency: INDUSTRIAL FITTING ELBOW, TUBE, BULKHEAD 1/4. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-582-2591, 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
4 XHBU2-S
NSN: 4730-01-582-2591
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 30780 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV TUBE FITTINGS DIVISION (USA)
SPECIFICATIONS
materialSTEEL BODY
style_designatorCOUPLING TUBE W/BULKHEAD UNION
end_item_identificationTRUCK,LIFT,FORK NSN 3930-01-553-6676
nominal_outside_diameter0.250 INCHES FIRST END IN
part_name_assigned_by_controlling_agencyINDUSTRIAL FITTING ELBOW, TUBE, BULKHEAD 1/4
NSN4730-01-582-2591
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4 XHBU2-S · 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
•
STYLE DESIGNATOR: COUPLING TUBE W/BULKHEAD UNION
•
NOMINAL OUTSIDE DIAMETER: 0.250 INCHES FIRST END IN
•
MATERIAL: STEEL BODY
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORCOUPLING TUBE W/BULKHEAD UNION
NOMINAL OUTSIDE DIAMETER0.250 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER0.250 INCHES SECOND END IN
SPECIAL FEATURESSHAPE:STRAIGHT,CONNECTION 1,STYLE: MALE 37 DEGREES FLARE, CONNECTION 1 TUBE OD 1/4", CONNECTION STYLE: MALE FLARELESS BITE TYPE BULKHEAD,CONNECTION 2 TUBE OD: 1/4",BODY MATERIAL: STEEL,CHROMIUM-6 FREE
PART NAME ASSIGNED BY CONTROLLING AGENCYINDUSTRIAL FITTING ELBOW, TUBE, BULKHEAD 1/4
END ITEM IDENTIFICATIONTRUCK,LIFT,FORK NSN 3930-01-553-6676
MATERIALSTEEL BODY
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4 XHBU2-S?
4 XHBU2-S is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What is the NSN for 4 XHBU2-S?
4 XHBU2-S is cataloged in the U.S. Government catalog under NSN 4730-01-582-2591. 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.