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Technical Data Sheet
PartsTable / COMPONENT / M83797-12-20-R
M83797-12-20-R ✓ Verified by PartsTable
— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

The HOSE ASSEMBLY,NONMETALLIC is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC TUBE, temp_rating: -40.0 FAHRENHEIT AND 300.0 FAHRENHEIT SINGLE RESPONSE DEGF, inside_diameter: 0.688 INCHES NOMINAL IN, outside_diameter: 0.938 INCHES NOMINAL IN, operating_pressure: 1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, burst_test_pressure: 3750.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-555-3499, 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
M83797-12-20-R
NSN: 4720-00-555-3499
FSC: 4720
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialRUBBER SYNTHETIC TUBE
temp_rating-40.0 FAHRENHEIT AND 300.0 FAHRENHEIT SINGLE RESPONSE DEGF
inside_diameter0.688 INCHES NOMINAL IN
outside_diameter0.938 INCHES NOMINAL IN
operating_pressure1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
burst_test_pressure3750.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
end_item_identificationGRUMMAN A10 AIRCRAFT
inside_surface_conditionSMOOTH
media_for_which_designedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
hydrostatic_test_pressure2000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
cross-sectional_shape_styleROUND
nondefinitive_spec/std_data12 SIZE
NSN4720-00-555-3499
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: M83797-12-20-R · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
LAYER COMPOSITION AND LOCATION: 1ST LAYER BRAIDED CORROSION RESISTANT STEEL WIRE, PARTIAL COVERAGE AND OUTER LAYER BRAIDED CORROSION RESISTANT STEEL WIRE
•
MINIMUM INSIDE BENDING RADIUS: 4.500 INCHES IN
•
BURST TEST PRESSURE: 3750.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
•
SPECIFICATION/STANDARD DATA: 81349-MIL-H-83797 GOVERNMENT SPECIFICATION
•
MEDIA FOR WHICH DESIGNED: FUEL/OIL, HYDROCARBON SINGLE RESPONSE
•
MATERIAL: RUBBER SYNTHETIC TUBE
•
HYDROSTATIC TEST PRESSURE: 2000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
TECHNICAL CHARACTERISTICS (FLIS)
LAYER COMPOSITION AND LOCATION1ST LAYER BRAIDED CORROSION RESISTANT STEEL WIRE, PARTIAL COVERAGE AND OUTER LAYER BRAIDED CORROSION RESISTANT STEEL WIRE
END ITEM IDENTIFICATIONGRUMMAN A10 AIRCRAFT
MINIMUM INSIDE BENDING RADIUS4.500 INCHES IN
BURST TEST PRESSURE3750.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
SPECIFICATION/STANDARD DATA81349-MIL-H-83797 GOVERNMENT SPECIFICATION
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON SINGLE RESPONSE
MATERIALRUBBER SYNTHETIC TUBE
HYDROSTATIC TEST PRESSURE2000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
INSIDE SURFACE CONDITIONSMOOTH
OPERATING PRESSURE1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
156-12Interchangeable
interchangeable cross-reference
interchangeable
B107.9Interchangeable
interchangeable cross-reference
interchangeable
2804Interchangeable
interchangeable cross-reference
interchangeable
AS954Interchangeable
interchangeable cross-reference
interchangeable
60112Interchangeable
Knife,craftsman's
interchangeable
479Interchangeable
Knife,craftsman's
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M83797-12-20-R?
M83797-12-20-R is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace M83797-12-20-R?
There are 29 known substitutes for M83797-12-20-R: 156-12, B107.9, 2804 and 26 more. Substitute compatibility should be verified for your specific system.
Is M83797-12-20-R still available?
M83797-12-20-R is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026