PartsTable
Technical Data Sheet
8633B ✓ 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 O-RING 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 5331-01-029-3674, 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
8633B
NSN: 5331-01-029-3674
FSC: 5331 — O-RING
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
Part Number8633B
NSN5331-01-029-3674
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8633B 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 7
4363661Interchangeable
interchangeable cross-reference
interchangeable
AS568-906MIL-G- 21569 CLASS 1Interchangeable
interchangeable cross-reference
interchangeable
60RInterchangeable
interchangeable cross-reference
interchangeable
3-906 N674-7Interchangeable
Same NIIN cross-reference
interchangeable
AS568-906MIL-G- 21569CL1Interchangeable
Same NIIN cross-reference
interchangeable
2507294-50Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8633B?
8633B is a O-RING.
What parts can replace 8633B?
There are 7 known substitutes for 8633B: 4363661, AS568-906MIL-G- 21569 CLASS 1, 60R and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8633B?
8633B is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-029-3674. This indicates validated use in U.S. government and defense supply chains.
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