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Technical Data Sheet
PartsTable / COMPONENT / RV51-21/ITEM 8
RV51-21/ITEM 8 ✓ 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 RV51-21/ITEM 8 is a the manufacturer industrial component. 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
RV51-21/ITEM 8
NSN: 5330-00-181-0024
FSC: 5330
CAGE: 91816 — CIRCOR AEROSPACE, INC. DBA CIRCOR AEROSPACE INC (USA)
SPECIFICATIONS
Part NumberRV51-21/ITEM 8
NSN5330-00-181-0024
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: RV51-21/ITEM 8 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 18
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 RV51-21/ITEM 8?
RV51-21/ITEM 8 is a RV51-21/ITEM 8.
What parts can replace RV51-21/ITEM 8?
There are 18 known substitutes for RV51-21/ITEM 8: MS28775-115, 5530-115, B-6227-13 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RV51-21/ITEM 8?
RV51-21/ITEM 8 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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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026