PartsTable
Technical Data Sheet
Download PDF

CRWHA1-R — SEAL,PLAIN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

CRWHA1-R: SEAL,PLAIN.

The SEAL,PLAIN is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL, seal_width: 0.438 INCHES NOMINAL IN, outside_diameter: 2.786 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE, housing_bore_diameter: 2.782 INCHES NOMINAL IN, accommodated_shaft_diameter: 1.875 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-437-3620, 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
CRWHA1-R
NSN: 5330-01-437-3620
FSC: 5330 — Packing and Gasket Materials
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
seal_width0.438 INCHES NOMINAL IN
outside_diameter2.786 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
housing_bore_diameter2.782 INCHES NOMINAL IN
accommodated_shaft_diameter1.875 INCHES NOMINAL IN
NSN5330-01-437-3620
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: CRWHA1-R 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
•
SEAL WIDTH: 0.438 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 2.786 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 2.782 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT DIAMETER: 1.875 INCHES NOMINAL IN
•
SURFACE TREATMENT: PLASTIC CASE
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.438 INCHES NOMINAL IN
OUTSIDE DIAMETER2.786 INCHES NOMINAL IN
HOUSING BORE DIAMETER2.782 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER1.875 INCHES NOMINAL IN
SURFACE TREATMENTPLASTIC CASE
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
18695Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
593-6960586 PC13Reference 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
Ready to buy CRWHA1-R?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is CRWHA1-R?
CRWHA1-R is a SEAL,PLAIN.
What parts can replace CRWHA1-R?
There are 2 known substitutes for CRWHA1-R: 18695, 593-6960586 PC13. Substitute compatibility should be verified for your specific system.
What is the NSN for CRWHA1-R?
CRWHA1-R is cataloged in the U.S. Government catalog under NSN 5330-01-437-3620. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — CRWHA1-R

✓ 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.