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RCSK15631 — HOSE,PREFORMED

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

RCSK15631: HOSE,PREFORMED.

The HOSE,PREFORMED is a the manufacturer industrial component. Key specifications include material: GLASS FIBER OR PLASTIC SILICONE OVERALL, wall_thickness: 0.110 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN, working_length: 4.210 INCHES MINIMUM AND 4.750 INCHES MAXIMUM IN, inside_diameter: 3.500 INCHES NOMINAL IN, special_features: MATERIAL IS 4 PLIES OF SILICONE IMPREGNATED FIBERGLASS OR ARAMID FIBER FABRIC CONSTRUCTION;ITEM IS A HOSE,Y,AFTERCOOLER, features_provided: ENLARGED ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4720-01-441-3755, 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
RCSK15631
NSN: 4720-01-441-3755
FSC: 4720 — Hose and Flexible Tubing
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
materialGLASS FIBER OR PLASTIC SILICONE OVERALL
wall_thickness0.110 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN
working_length4.210 INCHES MINIMUM AND 4.750 INCHES MAXIMUM IN
inside_diameter3.500 INCHES NOMINAL IN
special_featuresMATERIAL IS 4 PLIES OF SILICONE IMPREGNATED FIBERGLASS OR ARAMID FIBER FABRIC CONSTRUCTION;ITEM IS A HOSE,Y,AFTERCOOLER
features_providedENLARGED ENDS
end_item_identification2320-01-383-3850; W/S CODE IS FOR A TRUCK,2 1/2 TON,6X6
NSN4720-01-441-3755
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: RCSK15631 · 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
•
WALL THICKNESS: 0.110 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN
•
FEATURES PROVIDED: ENLARGED ENDS
•
INSIDE DIAMETER: 3.500 INCHES NOMINAL IN
•
MATERIAL: GLASS FIBER OR PLASTIC SILICONE OVERALL
•
WORKING LENGTH: 4.210 INCHES MINIMUM AND 4.750 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WALL THICKNESS0.110 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN
FEATURES PROVIDEDENLARGED ENDS
INSIDE DIAMETER3.500 INCHES NOMINAL IN
SPECIAL FEATURESMATERIAL IS 4 PLIES OF SILICONE IMPREGNATED FIBERGLASS OR ARAMID FIBER FABRIC CONSTRUCTION;ITEM IS A HOSE,Y,AFTERCOOLER
END ITEM IDENTIFICATION2320-01-383-3850; W/S CODE IS FOR A TRUCK,2 1/2 TON,6X6
MATERIALGLASS FIBER OR PLASTIC SILICONE OVERALL
WORKING LENGTH4.210 INCHES MINIMUM AND 4.750 INCHES MAXIMUM IN
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 1
12448710Same 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
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FREQUENTLY ASKED QUESTIONS
What is RCSK15631?
RCSK15631 is a HOSE,PREFORMED.
What parts can replace RCSK15631?
There is 1 known substitute for RCSK15631: 12448710. Substitute compatibility should be verified for your specific system.
What is the NSN for RCSK15631?
RCSK15631 is cataloged in the U.S. Government catalog under NSN 4720-01-441-3755. 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.