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CRWH1R78738 — CRWH1R78738

✓ Government record, cited
SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS · ORING SEAL
PRODUCT OVERVIEW

CRWH1R78738: CRWH1R78738.

The CRWH1R78738 is a SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS industrial component. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-457-1555, 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
CRWH1R78738
NSN: 5330-01-457-1555
FSC: 5330 — Packing and Gasket Materials
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
Part NumberCRWH1R78738
ManufacturerSKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS
NSN5330-01-457-1555
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: CRWH1R78738 MFR: SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS ⚠ 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
•
SEAL WIDTH: 0.625 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: VERTICAL
•
OUTSIDE DIAMETER: 9.383 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 9.375 INCHES NOMINAL IN
•
CASE STYLE: RECESSED
•
ACCOMMODATED SHAFT DIAMETER: 7.875 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.625 INCHES NOMINAL IN
SEALING ELEMENT STYLEVERTICAL
OUTSIDE DIAMETER9.383 INCHES NOMINAL IN
HOUSING BORE DIAMETER9.375 INCHES NOMINAL IN
CASE STYLERECESSED
ACCOMMODATED SHAFT DIAMETER7.875 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
SUBSTITUTES & CROSS-REFERENCES 1
236275Same 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 CRWH1R78738?
CRWH1R78738 is a CRWH1R78738 manufactured by SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS.
What parts can replace CRWH1R78738?
There is 1 known substitute for CRWH1R78738: 236275. Substitute compatibility should be verified for your specific system.
What is the NSN for CRWH1R78738?
CRWH1R78738 is cataloged in the U.S. Government catalog under NSN 5330-01-457-1555. 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.