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D21158 — BEARING,ROLLER,JOURNAL

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

D21158: BEARING,ROLLER,JOURNAL.

The BEARING,ROLLER,JOURNAL is a the manufacturer industrial component. Key specifications include material: FIBERGLASS REINFORCING CORD, bore_diameter: 2.1654 INCHES NOMINAL IN, overall_width: 3.6250 INCHES NOMINAL IN, wall_thickness: 0.060 INCHES NOMINAL IN, connection_type: SOFT BOTH ENDS, inside_diameter: 6.625 INCHES NOMINAL FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4720-00-104-1983, 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
D21158
NSN: 4720-00-104-1983
NIINs: 001041983, 009026589, 010647923
FSC: 4720 — Hose and Flexible Tubing
CAGE: 53047 — RHEEM MFG CO AIR CONDITIONING DIV (USA)
SPECIFICATIONS
materialFIBERGLASS REINFORCING CORD
bore_diameter2.1654 INCHES NOMINAL IN
overall_width3.6250 INCHES NOMINAL IN
wall_thickness0.060 INCHES NOMINAL IN
connection_typeSOFT BOTH ENDS
inside_diameter6.625 INCHES NOMINAL FIRST END IN
connection_styleROUND BOTH ENDS
special_featuresOIL HOLE IN OUTER RING
style_designatorHELICALLY WOUND CONTINOUS WIRE SUPPORTED
end_overall_length1.500 INCHES NOMINAL BOTH ENDS IN
operating_pressure20.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
end_inside_diameter6.625 INCHES NOMINAL BOTH ENDS IN
NSN4720-00-104-1983
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: D21158 · 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
SUBSTITUTES & CROSS-REFERENCES 1
FLX3001-53-26-6Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 D21158?
D21158 is a BEARING,ROLLER,JOURNAL.
What parts can replace D21158?
There is 1 known substitute for D21158: FLX3001-53-26-6. Substitute compatibility should be verified for your specific system.
What is the NSN for D21158?
D21158 is cataloged in the U.S. Government catalog under NSN 4720-00-104-1983. 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.