PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 139-20
139-20 ✓ Verified by PartsTable
ASUS · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

Serial ATA is the next generation ATA specification that provides scalable performance for today and tomorrow. With up to 150MB/s data transfer rate, Serial ATA is faster than current Parallel ATA, while providing 100% software compatibility. A7N8X-XE supports RAID 0, RAID 1 and RAID 0+1.

<br> This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-090-8499, 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
139-20
NSN: 5330-00-090-8499
FSC: 5330
CAGE: 82796 — COLTEC INDUSTRIES INC. DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
administrationINTRAVENOUS
overall_length17.500 INCHES NOMINAL IN
drive_end_shapeSQUARE SINGLE END EXTERNAL
special_featuresSTRAIGHT ROUND KNURLED STEEL HANDLE
style_designatorHINGED
features_providedSTERILE
surface_treatmentCHROMIUM OVERALL
drive_surface_size0.750 INCHES NOMINAL SINGLE END IN
primary_container_typeVIAL
therapeutic_equivalentNOT LISTED
end_item_identificationFKV PROJECT-PHASE 1
NSN5330-00-090-8499
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 139-20 MFR: ASUS ⚠ 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
1314-9103Interchangeable
interchangeable cross-reference
interchangeable
D-735 1/4INInterchangeable
interchangeable cross-reference
interchangeable
721 1/4INInterchangeable
interchangeable cross-reference
interchangeable
13920Interchangeable
interchangeable cross-reference
interchangeable
8345731Interchangeable
interchangeable cross-reference
interchangeable
NDC00469-1390-40Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 139-20?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 139-20?
139-20 is a TRANSFORMER COMMUTATING manufactured by ASUS.
What parts can replace 139-20?
There are 7 known substitutes for 139-20: 1314-9103, D-735 1/4IN, 721 1/4IN and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 139-20?
139-20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-090-8499. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 139-20

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026