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PartsTable / COMPONENT / B1398A
B1398A ✓ 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

CAPACITOR,FIXED,PAPER DIELECTRIC. Key specifications include material: PAPER, usage_design: USED IN DIFFERENTIATING PNEUMOCOCCI FROM ALPHA HEMOLYTIC STREPTOCOCCI, primary_container_type: TUBE, DISPENSING, supplementary_features: MEDSEP ITEM FOR DOD, COLUMBIA DIAGNOSTICS, composition_ingredients: OPTOCHIN, protective_storage_feature: REQUIRES REFRIGERATION STORAGE BETWEEN 2 TO 8 DEG CELSIUS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-204-0143, 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
B1398A
NSN: 5330-01-204-0143
FSC: 5330
CAGE: 61208 — TWIN DISC, INCORPORATED DBA TWIN DISC MID-ATLANTIC (USA)
SPECIFICATIONS
materialPAPER
usage_designUSED IN DIFFERENTIATING PNEUMOCOCCI FROM ALPHA HEMOLYTIC STREPTOCOCCI
primary_container_typeTUBE, DISPENSING
supplementary_featuresMEDSEP ITEM FOR DOD, COLUMBIA DIAGNOSTICS
composition_ingredientsOPTOCHIN
protective_storage_featureREQUIRES REFRIGERATION STORAGE BETWEEN 2 TO 8 DEG CELSIUS
active_ingredients_per_unit5.0000 MICROGRAMS PER DISK
primary_container_content_quantity50.000 DISK
part_name_assigned_by_controlling_agencyDIFFERENTIATION DISKS MICRORGANISM OPTOCHIN 5MCG/DISK 50S
NSN5330-01-204-0143
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B1398A 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
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
31-760Interchangeable
interchangeable cross-reference
interchangeable
B1398AInterchangeable
interchangeable cross-reference
interchangeable
33760Interchangeable
interchangeable cross-reference
interchangeable
SPTD02949Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B1398A?
B1398A is a CAPACITOR,FIXED,PAPER DIELECTRIC.
What parts can replace B1398A?
There are 4 known substitutes for B1398A: 31-760, B1398A, 33760 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B1398A?
B1398A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-204-0143. 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