PartsTable
Technical Data Sheet

M83798/1-4 — ADAPTER,STRAIGHT,TUBE TO HOSE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

M83798/1-4: ADAPTER,STRAIGHT,TUBE TO HOSE.

The ADAPTER,STRAIGHT,TUBE TO HOSE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1010 OVERALL, seat_angle: 37.0 DEGREES FIRST END, thread_class: 3B FIRST END, connection_type: THREADED EXTERNAL HOSE GRIPPING SECOND END, connection_style: GRIPPING NIPPLE (NOSE) SECOND END, surface_treatment: CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-618-7378, 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
M83798/1-4
NSN: 4730-00-618-7378
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 1010 OVERALL
seat_angle37.0 DEGREES FIRST END
thread_class3B FIRST END
connection_typeTHREADED EXTERNAL HOSE GRIPPING SECOND END
connection_styleGRIPPING NIPPLE (NOSE) SECOND END
surface_treatmentCADMIUM OVERALL
operating_pressure1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.438 INCHES FIRST END IN
maximum_operating_temp-54.0 CELSIUS FIRST RESPONSE DEGC
nominal_overall_length1.730 INCHES IN
thread_series_designatorUNF FIRST END
furnished_items_and_quantity1 HOSE COUPLING NUT
NSN4730-00-618-7378
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: M83798/1-4 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.219 INCHES SECOND END IN
•
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED: 0.438 INCHES SECOND END IN
•
NOMINAL OVERALL LENGTH: 1.730 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL HOSE GRIPPING SECOND END
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 HOSE COUPLING NUT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLESWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
CONNECTION STYLEGRIPPING NIPPLE (NOSE) SECOND END
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.219 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED0.438 INCHES SECOND END IN
NOMINAL OVERALL LENGTH1.730 INCHES IN
CONNECTION TYPETHREADED EXTERNAL HOSE GRIPPING SECOND END
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
SUBSTITUTES & CROSS-REFERENCES 5
816-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
136-1000-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-DTL-83798/1Reference document
Same NSN cross-reference
Reference document — Identification reference
676-4SReference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-F-83798/1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
Ready to buy M83798/1-4?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is M83798/1-4?
M83798/1-4 is a ADAPTER,STRAIGHT,TUBE TO HOSE.
What parts can replace M83798/1-4?
There are 5 known substitutes for M83798/1-4: 816-4, 136-1000-4, MIL-DTL-83798/1 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M83798/1-4?
M83798/1-4 is cataloged in the U.S. Government catalog under NSN 4730-00-618-7378. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — M83798/1-4

✓ 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.