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Technical Data Sheet
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BL1031 — O-RING SET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

BL1031: O-RING SET.

The O-RING SET is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-574-5450, 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
BL1031
NSN: 5331-01-574-5450
FSC: 5331 — O-ring
CAGE: 5P967 — DANTE VALVE COMPANY (USA)
SPECIFICATIONS
Part NumberBL1031
NSN5331-01-574-5450
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: BL1031 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
SUBSTITUTES & CROSS-REFERENCES 2
D50-0024 NOTE 6 P/N BL1031Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
D50-0024Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BL1031?
BL1031 is a O-RING SET.
What parts can replace BL1031?
There are 2 known substitutes for BL1031: D50-0024 NOTE 6 P/N BL1031, D50-0024. Substitute compatibility should be verified for your specific system.
What is the NSN for BL1031?
BL1031 is cataloged in the U.S. Government catalog under NSN 5331-01-574-5450. This indicates validated use in U.S. government and defense supply chains.
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