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Q19 — SEMICONDUCTOR DEVICE SET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

Q19: SEMICONDUCTOR DEVICE SET.

The SEMICONDUCTOR DEVICE SET is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, peripheral_diameter: 1.250 INCHES NOMINAL IN, center_hole_diameter: 1.000 INCHES NOMINAL IN, cross-sectional_height: 0.125 INCHES NOMINAL IN, component_name_and_quantity: 4 SEMICONDUCTOR DEVICE DIODE, cross-sectional_shape_style: SPECIAL. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-585-4974, 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
Q19
NSN: 5330-00-585-4974
NIINs: 005854974, 006150590, 010931800
FSC: 5330 — Packing and Gasket Materials
CAGE: 07322 — MINNESOTA RUBBER CO (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
peripheral_diameter1.250 INCHES NOMINAL IN
center_hole_diameter1.000 INCHES NOMINAL IN
cross-sectional_height0.125 INCHES NOMINAL IN
component_name_and_quantity4 SEMICONDUCTOR DEVICE DIODE
cross-sectional_shape_styleSPECIAL
component_function_relationshipMATCHED
NSN5330-00-585-4974
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: Q19 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: 0.125 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SPECIAL
•
PERIPHERAL DIAMETER: 1.250 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 1.000 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.125 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESPECIAL
PERIPHERAL DIAMETER1.250 INCHES NOMINAL IN
CENTER HOLE DIAMETER1.000 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
Q19MILR2765AReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
C4258M450Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is Q19?
Q19 is a SEMICONDUCTOR DEVICE SET.
What parts can replace Q19?
There are 2 known substitutes for Q19: Q19MILR2765A, C4258M450. Substitute compatibility should be verified for your specific system.
What is the NSN for Q19?
Q19 is cataloged in the U.S. Government catalog under NSN 5330-00-585-4974. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.