PartsTable
Technical Data Sheet

601 1/4IN — COUPLING,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

601 1/4IN: COUPLING,TUBE.

The COUPLING,TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, connection_type: UNTHREADED INTERNAL TUBE ALL ENDS, connection_style: PLAIN (TUBE) ALL ENDS, style_designator: BEVELED BOTH ENDS, nominal_overall_length: 3.344 INCHES IN, nominal_outside_diameter_tube_accommodated: 3.000 INCHES ALL ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-289-0283, 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
601 1/4IN
NSN: 4730-00-289-0283
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 14959 — CRANE CO DIV VALVE DIV (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
connection_typeUNTHREADED INTERNAL TUBE ALL ENDS
connection_stylePLAIN (TUBE) ALL ENDS
style_designatorBEVELED BOTH ENDS
nominal_overall_length3.344 INCHES IN
nominal_outside_diameter_tube_accommodated3.000 INCHES ALL ENDS IN
NSN4730-00-289-0283
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 601 1/4IN · 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
•
CONNECTION STYLE: PLAIN (TUBE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 3.344 INCHES IN
•
CONNECTION TYPE: UNTHREADED INTERNAL TUBE ALL ENDS
•
STYLE DESIGNATOR: BEVELED BOTH ENDS
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 3.000 INCHES ALL ENDS IN
•
MATERIAL: COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (TUBE) ALL ENDS
NOMINAL OVERALL LENGTH3.344 INCHES IN
CONNECTION TYPEUNTHREADED INTERNAL TUBE ALL ENDS
STYLE DESIGNATORBEVELED BOTH ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED3.000 INCHES ALL ENDS IN
MATERIALCOPPER ALLOY OVERALL
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 1
601Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 601 1/4IN?
601 1/4IN is a COUPLING,TUBE.
What parts can replace 601 1/4IN?
There is 1 known substitute for 601 1/4IN: 601. Substitute compatibility should be verified for your specific system.
What is the NSN for 601 1/4IN?
601 1/4IN is cataloged in the U.S. Government catalog under NSN 4730-00-289-0283. 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.