PartsTable
Technical Data Sheet

4-190885-1/4-8 — ADAPTER,STRAIGHT,HOSE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

4-190885-1/4-8: ADAPTER,STRAIGHT,HOSE TO BOSS.

The ADAPTER,STRAIGHT,HOSE TO BOSS is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, thread_class: 3A SECOND END A, connection_type: THREADED EXTERNAL HOSE GRIPPING FIRST END, connection_style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END, operating_pressure: 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, nominal_thread_size: 1.188 INCHES SECOND END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-020-6752, 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
4-190885-1/4-8
NSN: 4730-01-020-6752
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 01276 — DANFOSS POWER SOLUTIONS II, LLC (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
thread_class3A SECOND END A
connection_typeTHREADED EXTERNAL HOSE GRIPPING FIRST END
connection_styleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
operating_pressure4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size1.188 INCHES SECOND END IN
maximum_operating_temp200.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length2.900 INCHES IN
media_for_which_designedAERONAUTICAL FLUID SINGLE RESPONSE
thread_quantity_per_inch12 SECOND END
thread_series_designatorUN SECOND END
furnished_items_and_quantity1 HOSE COUPLING NUT
NSN4730-01-020-6752
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4-190885-1/4-8 · 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 HOSE COUPLING NUT
•
CONNECTION STYLE: GRIPPING NIPPLE (NOSE) FIRST END
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.500 INCHES FIRST END IN
•
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED: 0.969 INCHES FIRST END IN
•
NOMINAL OVERALL LENGTH: 2.900 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL BOSS SECOND END
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 HOSE COUPLING NUT
CONNECTION STYLEGRIPPING NIPPLE (NOSE) FIRST END
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.500 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED0.969 INCHES FIRST END IN
NOMINAL OVERALL LENGTH2.900 INCHES IN
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
CONNECTION TYPETHREADED EXTERNAL HOSE GRIPPING FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CLASS A OR B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OPERATING PRESSURE4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
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 2
CMC-4-5603-1/4-08Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MIL-F-24787Reference document
Same NSN cross-reference
Reference document — Identification reference
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 4-190885-1/4-8?
4-190885-1/4-8 is a ADAPTER,STRAIGHT,HOSE TO BOSS.
What parts can replace 4-190885-1/4-8?
There are 2 known substitutes for 4-190885-1/4-8: CMC-4-5603-1/4-08, MIL-F-24787. Substitute compatibility should be verified for your specific system.
What is the NSN for 4-190885-1/4-8?
4-190885-1/4-8 is cataloged in the U.S. Government catalog under NSN 4730-01-020-6752. 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.