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Technical Data Sheet
PartsTable / COMPONENT / BPF7/8
BPF7/8 ✓ 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 BPF7/8 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 5340-00-518-5678, 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
BPF7/8
NSN: 5340-00-518-5678
FSC: 5340
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
Part NumberBPF7/8
NSN5340-00-518-5678
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: BPF7/8 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
•
OVERALL DIAMETER: 1.250 INCHES NOMINAL IN
•
FEATURES PROVIDED: BEVELED SEAT AND SHOULDER
•
DESIGN TYPE: FRICTION
•
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 0.875 INCHES NOMINAL IN
•
MATERIAL: PLASTIC, POLYETHYLENE (PP)
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DIAMETER1.250 INCHES NOMINAL IN
FEATURES PROVIDEDBEVELED SEAT AND SHOULDER
DESIGN TYPEFRICTION
OPENING INSIDE DIAMETER FOR WHICH DESIGNED0.875 INCHES NOMINAL IN
MATERIALPLASTIC, POLYETHYLENE (PP)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
52387Interchangeable
interchangeable cross-reference
interchangeable
184112H1Interchangeable
interchangeable cross-reference
interchangeable
4-38Interchangeable
interchangeable cross-reference
interchangeable
438-432Interchangeable
interchangeable cross-reference
interchangeable
FF-B-187AInterchangeable
interchangeable cross-reference
interchangeable
5315-7-2B2-00Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BPF7/8?
BPF7/8 is a BPF7/8.
What parts can replace BPF7/8?
There are 21 known substitutes for BPF7/8: 52387, 184112H1, 4-38 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BPF7/8?
BPF7/8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-518-5678. 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