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Technical Data Sheet
PartsTable / COMPONENT / B-91759
B-91759 ✓ 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

SEAL,NONMETALLIC SPECIAL SHAPED. Key specifications include material: PAPER OVERALL, construction: SOLIDSOLID, fabrication_method: SOLIDSOLID, cross-sectional_width: 9.550 INCHES NOMINAL9.550 INCHES NOMINAL IN, cross-sectional_height: 0.031 INCHES NOMINAL0.031 INCHES NOMINAL IN, cross-sectional_thickness: 11.050 INCHES NOMINAL11.050 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-105-7075, 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
B-91759
NSN: 5330-01-105-7075
FSC: 5330
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
materialPAPER OVERALL
constructionSOLIDSOLID
fabrication_methodSOLIDSOLID
cross-sectional_width9.550 INCHES NOMINAL9.550 INCHES NOMINAL IN
cross-sectional_height0.031 INCHES NOMINAL0.031 INCHES NOMINAL IN
cross-sectional_thickness11.050 INCHES NOMINAL11.050 INCHES NOMINAL IN
NSN5330-01-105-7075
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B-91759 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
•
CROSS-SECTIONAL HEIGHT: 0.031 INCHES NOMINAL0.031 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 11.050 INCHES NOMINAL11.050 INCHES NOMINAL IN
•
CONSTRUCTION: SOLIDSOLID
•
CROSS-SECTIONAL WIDTH: 9.550 INCHES NOMINAL9.550 INCHES NOMINAL IN
•
MATERIAL: PAPER OVERALL
•
FABRICATION METHOD: SOLIDSOLID
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.031 INCHES NOMINAL0.031 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS11.050 INCHES NOMINAL11.050 INCHES NOMINAL IN
CONSTRUCTIONSOLIDSOLID
CROSS-SECTIONAL WIDTH9.550 INCHES NOMINAL9.550 INCHES NOMINAL IN
MATERIALPAPER OVERALL
FABRICATION METHODSOLIDSOLID
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
91759Interchangeable
interchangeable cross-reference
interchangeable
7057635Interchangeable
interchangeable cross-reference
interchangeable
1864319Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B-91759?
B-91759 is a SEAL,NONMETALLIC SPECIAL SHAPED.
What parts can replace B-91759?
There are 3 known substitutes for B-91759: 91759, 7057635, 1864319. Substitute compatibility should be verified for your specific system.
What is the NSN for B-91759?
B-91759 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-105-7075. 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.
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Last verified: July 2026