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5645K12 — HOSE,NONMETALLIC

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

5645K12: HOSE,NONMETALLIC.

The HOSE,NONMETALLIC is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR TUBE, temp_rating: 40.0 FAHRENHEIT AND 400.0 FAHRENHEIT SINGLE RESPONSE DEGF, inside_diameter: 0.250 INCHES NOMINAL IN, outside_diameter: 0.422 INCHES NOMINAL IN, operating_pressure: 375.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, burst_test_pressure: 1500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS. This part is cataloged in the U.S.

Government catalog under NSN 4720-01-372-2758, 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
5645K12
NSN: 4720-01-372-2758
FSC: 4720 — Hose and Flexible Tubing
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR TUBE
temp_rating40.0 FAHRENHEIT AND 400.0 FAHRENHEIT SINGLE RESPONSE DEGF
inside_diameter0.250 INCHES NOMINAL IN
outside_diameter0.422 INCHES NOMINAL IN
operating_pressure375.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
burst_test_pressure1500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
inside_surface_conditionSMOOTH
media_for_which_designedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
cross-sectional_shape_styleROUND
minimum_inside_bending_radius1.500 INCHES IN
layer_composition_and_location1ST LAYER BRAIDED RAYON CORD AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
NSN4720-01-372-2758
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 5645K12 · 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
•
TEMP RATING: 40.0 FAHRENHEIT AND 400.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
MINIMUM INSIDE BENDING RADIUS: 1.500 INCHES IN
•
LAYER COMPOSITION AND LOCATION: 1ST LAYER BRAIDED RAYON CORD AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
OUTSIDE DIAMETER: 0.422 INCHES NOMINAL IN
•
OPERATING PRESSURE: 375.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
INSIDE DIAMETER: 0.250 INCHES NOMINAL IN
•
INSIDE SURFACE CONDITION: SMOOTH
TECHNICAL CHARACTERISTICS
TEMP RATING40.0 FAHRENHEIT AND 400.0 FAHRENHEIT SINGLE RESPONSE DEGF
MINIMUM INSIDE BENDING RADIUS1.500 INCHES IN
LAYER COMPOSITION AND LOCATION1ST LAYER BRAIDED RAYON CORD AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
CROSS-SECTIONAL SHAPE STYLEROUND
OUTSIDE DIAMETER0.422 INCHES NOMINAL IN
OPERATING PRESSURE375.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
INSIDE DIAMETER0.250 INCHES NOMINAL IN
INSIDE SURFACE CONDITIONSMOOTH
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON SINGLE RESPONSE
BURST TEST PRESSURE1500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
OTHER ITEMS IN FSC 4720 — Hose and Flexible Tubing
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4720-00-000-0080 4720-00-000-0081 4720-00-000-0084 4720-00-000-0724 4720-00-001-0014 4720-00-001-0015 4720-00-001-0023 4720-00-001-0025
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5645K12?
5645K12 is a HOSE,NONMETALLIC.
What is the NSN for 5645K12?
5645K12 is cataloged in the U.S. Government catalog under NSN 4720-01-372-2758. 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.