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R900001873 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

R900001873: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, center_hole_diameter: 23.5 MILLIMETERS NOMINAL MM, cross-sectional_height: 1.8 MILLIMETERS NOMINAL MM, end_item_identification: 4/3 AND 4/2-WAY DIRECTIONAL VALVE, MODEL WMM HAND LEVER OPERATED. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-536-5880, 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
R900001873
NSN: 5331-01-536-5880
FSC: 5331 — O-ring
CAGE: 27005 — BOSCH REXROTH CORPORATION DIV INDUSTRIAL HYDRAULICS (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
center_hole_diameter23.5 MILLIMETERS NOMINAL MM
cross-sectional_height1.8 MILLIMETERS NOMINAL MM
end_item_identification4/3 AND 4/2-WAY DIRECTIONAL VALVE, MODEL WMM HAND LEVER OPERATED
NSN5331-01-536-5880
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: R900001873 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CROSS-SECTIONAL HEIGHT: 1.8 MILLIMETERS NOMINAL MM
•
CENTER HOLE DIAMETER: 23.5 MILLIMETERS NOMINAL MM
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT1.8 MILLIMETERS NOMINAL MM
CENTER HOLE DIAMETER23.5 MILLIMETERS NOMINAL MM
END ITEM IDENTIFICATION4/3 AND 4/2-WAY DIRECTIONAL VALVE, MODEL WMM HAND LEVER OPERATED
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES 2
RD 22 369-E/11.81 ITEM 1.49Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
001873Reference 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 R900001873?
R900001873 is a O-RING.
What parts can replace R900001873?
There are 2 known substitutes for R900001873: RD 22 369-E/11.81 ITEM 1.49, 001873. Substitute compatibility should be verified for your specific system.
What is the NSN for R900001873?
R900001873 is cataloged in the U.S. Government catalog under NSN 5331-01-536-5880. This indicates validated use in U.S. government and defense supply chains.
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