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RCH2 3X3X10 DETAIL 21 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

RCH2 3X3X10 DETAIL 21: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, special_features: OUTSIDE DIAMETER IS 1.500 IN IN, center_hole_diameter: 1.375 INCHES NOMINAL IN, cross-sectional_height: 0.062 INCHES NOMINAL IN, end_item_identification: IMPELLER / SLEEVE FOR A RCH2 3X3 PUMP. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-528-1457, 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
RCH2 3X3X10 DETAIL 21
NSN: 5331-01-528-1457
FSC: 5331 — O-ring
CAGE: 0TWN3 — AMPCO PUMPS COMPANY LLC (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
special_featuresOUTSIDE DIAMETER IS 1.500 IN IN
center_hole_diameter1.375 INCHES NOMINAL IN
cross-sectional_height0.062 INCHES NOMINAL IN
end_item_identificationIMPELLER / SLEEVE FOR A RCH2 3X3 PUMP
NSN5331-01-528-1457
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: RCH2 3X3X10 DETAIL 21 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: 0.062 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 1.375 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.062 INCHES NOMINAL IN
SPECIAL FEATURESOUTSIDE DIAMETER IS 1.500 IN IN
CENTER HOLE DIAMETER1.375 INCHES NOMINAL IN
END ITEM IDENTIFICATIONIMPELLER / SLEEVE FOR A RCH2 3X3 PUMP
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 1
GX099300Reference 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 RCH2 3X3X10 DETAIL 21?
RCH2 3X3X10 DETAIL 21 is a O-RING.
What parts can replace RCH2 3X3X10 DETAIL 21?
There is 1 known substitute for RCH2 3X3X10 DETAIL 21: GX099300. Substitute compatibility should be verified for your specific system.
What is the NSN for RCH2 3X3X10 DETAIL 21?
RCH2 3X3X10 DETAIL 21 is cataloged in the U.S. Government catalog under NSN 5331-01-528-1457. 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.