PartsTable
Technical Data Sheet

M83798/18-20 — ELBOW,SWIVEL FLANGE TO HOSE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

M83798/18-20: ELBOW,SWIVEL FLANGE TO HOSE.

The ELBOW,SWIVEL FLANGE TO HOSE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 ELBOWUNABLE TO DECODE, flow_angle: 90.0 DEGREES, leg_length: 1.500 INCHES NOMINAL FIRST ENDUNABLE TO DECODE IN, flange_shape: ROUND FIRST ENDUNABLE TO DECODE, connection_type: THREADED EXTERNAL HOSE GRIPPING SECOND ENDUNABLE TO DECODE, connection_style: GRIPPING NIPPLE (NOSE) SECOND ENDUNABLE TO DECODE. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-008-9951, 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
M83798/18-20
NSN: 4730-01-008-9951
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
materialALUMINUM ALLOY 6061 ELBOWUNABLE TO DECODE
flow_angle90.0 DEGREES
leg_length1.500 INCHES NOMINAL FIRST ENDUNABLE TO DECODE IN
flange_shapeROUND FIRST ENDUNABLE TO DECODE
connection_typeTHREADED EXTERNAL HOSE GRIPPING SECOND ENDUNABLE TO DECODE
connection_styleGRIPPING NIPPLE (NOSE) SECOND ENDUNABLE TO DECODE
nominal_thickness0.234 INCHES FIRST ENDUNABLE TO DECODE IN
surface_treatmentANODIZE SHOULDER
flange_face_designPLAIN FIRST ENDUNABLE TO DECODE
operating_pressure500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
media_for_which_designedFUEL FIRST RESPONSE
nominal_outside_diameter1.844 INCHES FIRST ENDUNABLE TO DECODE IN
NSN4730-01-008-9951
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: M83798/18-20 · 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 ENDUNABLE TO DECODE
•
FLOW ANGLE: 90.0 DEGREES
•
MAXIMUM OPERATING PRESSURE: UNABLE TO DECODEUNABLE TO DECODE
•
FLANGE FACE DESIGN: PLAIN FIRST ENDUNABLE TO DECODE
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: UNABLE TO DECODE
•
CONNECTION STYLE: GRIPPING NIPPLE (NOSE) SECOND ENDUNABLE TO DECODE
TECHNICAL CHARACTERISTICS
FLANGE SHAPEROUND FIRST ENDUNABLE TO DECODE
FLOW ANGLE90.0 DEGREES
MAXIMUM OPERATING PRESSUREUNABLE TO DECODEUNABLE TO DECODE
FLANGE FACE DESIGNPLAIN FIRST ENDUNABLE TO DECODE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONUNABLE TO DECODE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE
CONNECTION STYLEGRIPPING NIPPLE (NOSE) SECOND ENDUNABLE TO DECODE
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED1.125 INCHES SECOND ENDUNABLE TO DECODE IN
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED1.438 INCHES SECOND ENDUNABLE TO DECODE IN
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 3
MIL-F-83798Reference document
Same NSN cross-reference
Reference document — Secondary reference
8790-20-20DReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
8790-20DSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy M83798/18-20?
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 M83798/18-20?
M83798/18-20 is a ELBOW,SWIVEL FLANGE TO HOSE.
What parts can replace M83798/18-20?
There are 3 known substitutes for M83798/18-20: MIL-F-83798, 8790-20-20D, 8790-20D. Substitute compatibility should be verified for your specific system.
What is the NSN for M83798/18-20?
M83798/18-20 is cataloged in the U.S. Government catalog under NSN 4730-01-008-9951. 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 — M83798/18-20

✓ 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.