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68X8X4 — ADAPTER,STRAIGHT,PIPE TO TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

68X8X4: ADAPTER,STRAIGHT,PIPE TO TUBE.

The ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 350 OR COPPER ALLOY 360 OVERALL, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: COMPRESSION (TUBE) FIRST END, operating_pressure: 1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, nominal_thread_size: 0.688 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-050-6746, 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
68X8X4
NSN: 4730-01-050-6746
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 01276 — DANFOSS POWER SOLUTIONS II, LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 350 OR COPPER ALLOY 360 OVERALL
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleCOMPRESSION (TUBE) FIRST END
operating_pressure1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.688 INCHES FIRST END IN
seat_nominal_radius0.062 INCHES FIRST END IN
maximum_operating_temp250.0 FAHRENHEIT SECOND RESPONSE DEGF
nominal_overall_length1.620 INCHES IN
media_for_which_designedOIL SECOND RESPONSE
thread_quantity_per_inch20 FIRST END
thread_series_designatorNPTF SECOND END
NSN4730-01-050-6746
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 68X8X4 · 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
•
FURNISHED ITEMS AND QUANTITY: 1 COUPLING SLEEVE
•
CONNECTION STYLE: COMPRESSION (TUBE) FIRST END
•
SEAT NOMINAL RADIUS: 0.062 INCHES FIRST END IN
•
NOMINAL OVERALL LENGTH: 1.620 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 COUPLING SLEEVE
CONNECTION STYLECOMPRESSION (TUBE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
SEAT NOMINAL RADIUS0.062 INCHES FIRST END IN
NOMINAL OVERALL LENGTH1.620 INCHES IN
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES FIRST END IN
OPERATING PRESSURE1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL THREAD SIZE0.688 INCHES FIRST END 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 6
12317P-15Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
SW12317P15Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
J512Reference document
Same NSN cross-reference
Reference document — Secondary reference
12317PReference document
Same NSN cross-reference
Reference document — Drawing number reference only
8-4 060102BReference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-J512Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 68X8X4?
68X8X4 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace 68X8X4?
There are 6 known substitutes for 68X8X4: 12317P-15, SW12317P15, J512 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 68X8X4?
68X8X4 is cataloged in the U.S. Government catalog under NSN 4730-01-050-6746. 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.