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300639 ✓ 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 SEMICONDUCTOR DEVICE ASSEMBLY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_depth: 0.094 INCHES NOMINAL IN, overall_width: 1.250 INCHES NOMINAL IN, overall_height: 1.250 INCHES NOMINAL IN, overall_length: 4.330 INCHES NOMINAL IN, major_components: DIODE 20; BOARD 1. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-126-8931, 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
300639
NSN: 5330-00-126-8931
FSC: 5330
CAGE: 56190 — METADURE PARTS & SALES, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_depth0.094 INCHES NOMINAL IN
overall_width1.250 INCHES NOMINAL IN
overall_height1.250 INCHES NOMINAL IN
overall_length4.330 INCHES NOMINAL IN
major_componentsDIODE 20; BOARD 1
special_featuresSTYLE DESIGNATOR:NO.60 IRREGULAR SHAPE FROM FIIG A03200
style_designatorPLAIN
supplementary_featuresCROSS-SECTIONAL SHAPE STYLE:NO.195 IRREGULAR SHAPE FROM FIIG A03200
NSN5330-00-126-8931
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 300639 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
•
SUPPLEMENTARY FEATURES: CROSS-SECTIONAL SHAPE STYLE:NO.195 IRREGULAR SHAPE FROM FIIG A03200
TECHNICAL CHARACTERISTICS (FLIS)
SUPPLEMENTARY FEATURESCROSS-SECTIONAL SHAPE STYLE:NO.195 IRREGULAR SHAPE FROM FIIG A03200
SPECIAL FEATURESSTYLE DESIGNATOR:NO.60 IRREGULAR SHAPE FROM FIIG A03200
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
MS28775-246Interchangeable
interchangeable cross-reference
interchangeable
SR 832-75-246Interchangeable
interchangeable cross-reference
interchangeable
2533405-246Interchangeable
interchangeable cross-reference
interchangeable
F12857Interchangeable
interchangeable cross-reference
interchangeable
300639Interchangeable
interchangeable cross-reference
interchangeable
2000-10Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 300639?
300639 is a SEMICONDUCTOR DEVICE ASSEMBLY.
What parts can replace 300639?
There are 15 known substitutes for 300639: MS28775-246, SR 832-75-246, 2533405-246 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 300639?
300639 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-126-8931. 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