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198-8273 — COUPLING ASSEMBLY,HOSE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

198-8273: COUPLING ASSEMBLY,HOSE.

The COUPLING ASSEMBLY,HOSE is a the manufacturer industrial component. Key specifications include flange_shape: ROUND FIRST END, special_features: COMPONENT OF 192-2134 HEAT EXCHANGER GP-SEA WATER, media_for_which_designed: WATER, SALT SINGLE RESPONSE, part_name_assigned_by_controlling_agency: COUPLING. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-662-3918, 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
198-8273
NSN: 4730-01-662-3918
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
flange_shapeROUND FIRST END
special_featuresCOMPONENT OF 192-2134 HEAT EXCHANGER GP-SEA WATER
media_for_which_designedWATER, SALT SINGLE RESPONSE
part_name_assigned_by_controlling_agencyCOUPLING
NSN4730-01-662-3918
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 198-8273 · 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
•
FLANGE SHAPE: ROUND FIRST END
•
MEDIA FOR WHICH DESIGNED: WATER, SALT SINGLE RESPONSE
TECHNICAL CHARACTERISTICS
FLANGE SHAPEROUND FIRST END
SPECIAL FEATURESCOMPONENT OF 192-2134 HEAT EXCHANGER GP-SEA WATER
MEDIA FOR WHICH DESIGNEDWATER, SALT SINGLE RESPONSE
PART NAME ASSIGNED BY CONTROLLING AGENCYCOUPLING
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 198-8273?
198-8273 is a COUPLING ASSEMBLY,HOSE.
What is the NSN for 198-8273?
198-8273 is cataloged in the U.S. Government catalog under NSN 4730-01-662-3918. 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.