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Technical Data Sheet
RV51-21ITEM8 ✓ 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: 0.880 INCHES NOMINAL IN, center_hole_diameter: 0.669 INCHES MINIMUM AND 0.679 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 5330-00-181-0024, 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
RV51-21ITEM8
NSN: 5330-00-181-0024
FSC: 5330
CAGE: 91816 — CIRCOR AEROSPACE, INC. DBA CIRCOR AEROSPACE INC (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
temp_rating-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
peripheral_diameter0.880 INCHES NOMINAL IN
center_hole_diameter0.669 INCHES MINIMUM AND 0.679 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 NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
NSN5330-00-181-0024
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: RV51-21ITEM8 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
MS28775-115Interchangeable
interchangeable cross-reference
interchangeable
5530-115Interchangeable
interchangeable cross-reference
interchangeable
B-6227-13Interchangeable
interchangeable cross-reference
interchangeable
CUJ-1-25-8Interchangeable
interchangeable cross-reference
interchangeable
2-115N304-7Interchangeable
interchangeable cross-reference
interchangeable
SP132-13Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RV51-21ITEM8?
RV51-21ITEM8 is a PACKING,PREFORMED.
What parts can replace RV51-21ITEM8?
There are 19 known substitutes for RV51-21ITEM8: MS28775-115, 5530-115, B-6227-13 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RV51-21ITEM8?
RV51-21ITEM8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-181-0024. This indicates validated use in U.S. government and defense supply chains.
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