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8082557 — COUPLING,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

8082557: COUPLING,TUBE.

The COUPLING,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, connection_type: UNTHREADED EXTERNAL TUBE ALL ENDS, connection_style: PLAIN (TUBE) ALL ENDS, style_designator: PLAIN W/TAPERED ENDS, nominal_overall_length: 6.750 INCHES IN, nominal_outside_diameter_tube_accommodated: 1.750 INCHES ALL ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-366-3086, 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
8082557
NSN: 4730-00-366-3086
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 39VG9 — PROGRESS RAIL LOCOMOTIVE INC. DBA PROGRESS RAIL SWITCHING SERVICES LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
connection_typeUNTHREADED EXTERNAL TUBE ALL ENDS
connection_stylePLAIN (TUBE) ALL ENDS
style_designatorPLAIN W/TAPERED ENDS
nominal_overall_length6.750 INCHES IN
nominal_outside_diameter_tube_accommodated1.750 INCHES ALL ENDS IN
NSN4730-00-366-3086
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 8082557 · 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: 6.750 INCHES IN
•
CONNECTION TYPE: UNTHREADED EXTERNAL TUBE ALL ENDS
•
STYLE DESIGNATOR: PLAIN W/TAPERED ENDS
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.750 INCHES ALL ENDS IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (TUBE) ALL ENDS
NOMINAL OVERALL LENGTH6.750 INCHES IN
CONNECTION TYPEUNTHREADED EXTERNAL TUBE ALL ENDS
STYLE DESIGNATORPLAIN W/TAPERED ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.750 INCHES ALL ENDS IN
MATERIALSTEEL 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

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 8082557?
8082557 is a COUPLING,TUBE.
What is the NSN for 8082557?
8082557 is cataloged in the U.S. Government catalog under NSN 4730-00-366-3086. 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.