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6803K57 — COUPLING,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6803K57: COUPLING,PIPE.

The COUPLING,PIPE is a the manufacturer industrial component. Key specifications include material: PLASTIC CHLORINATED POLYVINYLCHLORIDE OVERALL, maximum_operating_temp: 73.0 FAHRENHEIT SINGLE RESPONSE DEGF, nominal_overall_length: 60.000 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-376-3083, 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
6803K57
NSN: 4730-01-376-3083
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialPLASTIC CHLORINATED POLYVINYLCHLORIDE OVERALL
maximum_operating_temp73.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length60.000 INCHES IN
NSN4730-01-376-3083
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6803K57 · 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: 60.000 INCHES IN
•
MAXIMUM OPERATING TEMP: 73.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
MATERIAL: PLASTIC CHLORINATED POLYVINYLCHLORIDE OVERALL
TECHNICAL CHARACTERISTICS
NOMINAL OVERALL LENGTH60.000 INCHES IN
MAXIMUM OPERATING TEMP73.0 FAHRENHEIT SINGLE RESPONSE DEGF
MATERIALPLASTIC CHLORINATED POLYVINYLCHLORIDE 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 6803K57?
6803K57 is a COUPLING,PIPE.
What is the NSN for 6803K57?
6803K57 is cataloged in the U.S. Government catalog under NSN 4730-01-376-3083. 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.