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Technical Data Sheet
BU90-8CP-P4 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL, temp_rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF, peripheral_diameter: 0.568 INCHES NOMINAL IN, center_hole_diameter: 0.357 INCHES MINIMUM AND 0.367 INCHES MAXIMUM IN, elongation_percentage: 160 MAXIMUM, cross-sectional_height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-205-2855, 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
BU90-8CP-P4
NSN: 5330-01-205-2855
FSC: 5330
CAGE: 3T9T9 — SWAGELOK CO (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
temp_rating-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
peripheral_diameter0.568 INCHES NOMINAL IN
center_hole_diameter0.357 INCHES MINIMUM AND 0.367 INCHES MAXIMUM IN
elongation_percentage160 MAXIMUM
cross-sectional_height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
NSN5330-01-205-2855
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: BU90-8CP-P4 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: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
CENTER HOLE DIAMETER: 0.357 INCHES MINIMUM AND 0.367 INCHES MAXIMUM IN
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
CRITICALITY CODE JUSTIFICATION: ZZZY
TEMP RATING: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
PERIPHERAL DIAMETER: 0.568 INCHES NOMINAL IN
ELONGATION PERCENTAGE: 160 MAXIMUM
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
CENTER HOLE DIAMETER0.357 INCHES MINIMUM AND 0.367 INCHES MAXIMUM IN
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
CRITICALITY CODE JUSTIFICATIONZZZY
TEMP RATING-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
PERIPHERAL DIAMETER0.568 INCHES NOMINAL IN
ELONGATION PERCENTAGE160 MAXIMUM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
12KP279Interchangeable
interchangeable cross-reference
interchangeable
4067-70-110Interchangeable
interchangeable cross-reference
interchangeable
72008Interchangeable
interchangeable cross-reference
interchangeable
MS28775-110Interchangeable
interchangeable cross-reference
interchangeable
391-2881-295Interchangeable
interchangeable cross-reference
interchangeable
GHN10089-17Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BU90-8CP-P4?
BU90-8CP-P4 is a PACKING,PREFORMED.
What parts can replace BU90-8CP-P4?
There are 9 known substitutes for BU90-8CP-P4: 12KP279, 4067-70-110, 72008 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BU90-8CP-P4?
BU90-8CP-P4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-205-2855. This indicates validated use in U.S. government and defense supply chains.
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