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Technical Data Sheet
PartsTable / COMPONENT / BPF-3/8
BPF-3/8 ✓ 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 BPF-3/8 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 5340-01-093-0140, 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
BPF-3/8
NSN: 5340-01-093-0140
FSC: 5340
CAGE: 99017 — CAPLUGS LLC DBA MOKON DIV CAPLUGS (USA)
SPECIFICATIONS
Part NumberBPF-3/8
NSN5340-01-093-0140
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: BPF-3/8 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
KEY FEATURES
•
MATERIAL DOCUMENT AND CLASSIFICATION: L-P-390 FED SPEC SINGLE MATERIAL RESPONSE
•
FEATURES PROVIDED: SHOULDER
•
MATERIAL: PLASTIC
•
OVERALL DIAMETER: 0.410 INCHES NOMINAL IN
•
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 0.310 INCHES NOMINAL IN
•
DESIGN TYPE: FRICTION
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONL-P-390 FED SPEC SINGLE MATERIAL RESPONSE
FEATURES PROVIDEDSHOULDER
MATERIALPLASTIC
OVERALL DIAMETER0.410 INCHES NOMINAL IN
OPENING INSIDE DIAMETER FOR WHICH DESIGNED0.310 INCHES NOMINAL IN
DESIGN TYPEFRICTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
6591Interchangeable
interchangeable cross-reference
interchangeable
169BInterchangeable
interchangeable cross-reference
interchangeable
2070Interchangeable
interchangeable cross-reference
interchangeable
SMA544730Interchangeable
interchangeable cross-reference
interchangeable
209405Interchangeable
interchangeable cross-reference
interchangeable
P16A62Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BPF-3/8?
BPF-3/8 is a BPF-3/8.
What parts can replace BPF-3/8?
There are 14 known substitutes for BPF-3/8: 6591, 169B, 2070 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BPF-3/8?
BPF-3/8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-093-0140. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026