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989548R1 — HOSE,PREFORMED

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

989548R1: HOSE,PREFORMED.

The HOSE,PREFORMED is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, working_length: 5.500 INCHES NOMINAL IN, inside_diameter: 4.000 INCHES NOMINAL IN, style_designator: CENTER HUMP, features_provided: ENLARGED ENDS, end_item_identification: MRAP BUFFALO MK2A2. This part is cataloged in the U.S.

Government catalog under NSN 4720-00-976-5406, 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
989548R1
NSN: 4720-00-976-5406
FSC: 4720 — Hose and Flexible Tubing
CAGE: 92679 — NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
working_length5.500 INCHES NOMINAL IN
inside_diameter4.000 INCHES NOMINAL IN
style_designatorCENTER HUMP
features_providedENLARGED ENDS
end_item_identificationMRAP BUFFALO MK2A2
NSN4720-00-976-5406
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 989548R1 · 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
•
STYLE DESIGNATOR: CENTER HUMP
•
FEATURES PROVIDED: ENLARGED ENDS
•
INSIDE DIAMETER: 4.000 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC OVERALL
•
WORKING LENGTH: 5.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORCENTER HUMP
FEATURES PROVIDEDENLARGED ENDS
INSIDE DIAMETER4.000 INCHES NOMINAL IN
END ITEM IDENTIFICATIONMRAP BUFFALO MK2A2
MATERIALRUBBER SYNTHETIC OVERALL
WORKING LENGTH5.500 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
479482C1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
729568Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 989548R1?
989548R1 is a HOSE,PREFORMED.
What parts can replace 989548R1?
There are 2 known substitutes for 989548R1: 479482C1, 729568. Substitute compatibility should be verified for your specific system.
What is the NSN for 989548R1?
989548R1 is cataloged in the U.S. Government catalog under NSN 4720-00-976-5406. 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.