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Technical Data Sheet
PartsTable / COMPONENT / 3886B
3886B ✓ 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 RETAINER,PACKING 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 5330-01-330-9683, 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
3886B
NSN: 5330-01-330-9683
FSC: 5330
CAGE: 22501 — HOWELL LABORATORIES INC DBA HOWELL LABORATORIES INC (USA)
SPECIFICATIONS
Part Number3886B
NSN5330-01-330-9683
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3886B 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 11
QA62605Interchangeable
interchangeable cross-reference
interchangeable
25904Interchangeable
interchangeable cross-reference
interchangeable
M285Interchangeable
interchangeable cross-reference
interchangeable
121-B-12Interchangeable
interchangeable cross-reference
interchangeable
7121B1-4Interchangeable
interchangeable cross-reference
interchangeable
973B197H01Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3886B?
3886B is a RETAINER,PACKING.
What parts can replace 3886B?
There are 11 known substitutes for 3886B: QA62605, 25904, M285 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3886B?
3886B is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-330-9683. 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