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259-2021-6-8 — ADAPTER,STRAIGHT,PIPE TO TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

259-2021-6-8: ADAPTER,STRAIGHT,PIPE TO TUBE.

The ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include connection_type: THREADED EXTERNAL TUBE SECOND END, style_designator: FLARED W/ CENTER WRENCHING FACILITY, nominal_overall_length: 1.420 INCHES IN, part_name_assigned_by_controlling_agency: MALE CONNECTOR. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-581-7586, 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
259-2021-6-8
NSN: 4730-01-581-7586
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 01276 — DANFOSS POWER SOLUTIONS II, LLC (USA)
SPECIFICATIONS
connection_typeTHREADED EXTERNAL TUBE SECOND END
style_designatorFLARED W/ CENTER WRENCHING FACILITY
nominal_overall_length1.420 INCHES IN
part_name_assigned_by_controlling_agencyMALE CONNECTOR
NSN4730-01-581-7586
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 259-2021-6-8 · 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
•
NOMINAL OVERALL LENGTH: 1.420 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE SECOND END
•
STYLE DESIGNATOR: FLARED W/ CENTER WRENCHING FACILITY
TECHNICAL CHARACTERISTICS
NOMINAL OVERALL LENGTH1.420 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE SECOND END
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
STYLE DESIGNATORFLARED W/ CENTER WRENCHING FACILITY
PART NAME ASSIGNED BY CONTROLLING AGENCYMALE CONNECTOR
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 259-2021-6-8?
259-2021-6-8 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What is the NSN for 259-2021-6-8?
259-2021-6-8 is cataloged in the U.S. Government catalog under NSN 4730-01-581-7586. 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.