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Technical Data Sheet
PartsTable / O-RING / 305090
305090 ✓ Verified by PartsTable
Hama · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

- Standard splitter for radio: antenna signal is split between two radios<br>- Suitable for cable TV<br>- Solid-metal housing<br>- Fully shielded. Key specifications include shape: CYLINDRICAL, material: RUBBER OVERALL, temp_rating: -70.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF, terminal_type: SOLDER TAB TOP, overall_length: 2.718 INCHES MINIMUM AND 2.842 INCHES MAXIMUM IN, hardness_rating: 80.0 SHORE DUROMETER A NOMINAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-087-8528, 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
305090
NSN: 5331-00-087-8528
FSC: 5331 — O-RING
CAGE: 12344 — TALLY PRINTER CORPORATION (USA)
SPECIFICATIONS
shapeCYLINDRICAL
materialRUBBER OVERALL
temp_rating-70.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
terminal_typeSOLDER TAB TOP
overall_length2.718 INCHES MINIMUM AND 2.842 INCHES MAXIMUM IN
hardness_rating80.0 SHORE DUROMETER A NOMINAL
outside_diameter4.974 INCHES MINIMUM AND 5.050 INCHES MAXIMUM IN
overall_diameter0.625 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
performance_typeREGULAR COMMERCIAL DUTY
special_featuresMATERIAL ETHYLENE PROPYLENE
style_designatorROUND TWIST
voltage_in_volts5.6
NSN5331-00-087-8528
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 305090 MFR: Hama ⚠ 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
•
HARDNESS RATING: 80.0 SHORE DUROMETER A NOMINAL
•
CENTER HOLE DIAMETER: 4.704 INCHES MINIMUM AND 4.764 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 4.974 INCHES MINIMUM AND 5.050 INCHES MAXIMUM IN
•
MATERIAL: RUBBER
•
TEMP RATING: -70.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
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
TECHNICAL CHARACTERISTICS (FLIS)
HARDNESS RATING80.0 SHORE DUROMETER A NOMINAL
CENTER HOLE DIAMETER4.704 INCHES MINIMUM AND 4.764 INCHES MAXIMUM IN
OUTSIDE DIAMETER4.974 INCHES MINIMUM AND 5.050 INCHES MAXIMUM IN
MATERIALRUBBER
TEMP RATING-70.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
4730PL1340532Interchangeable
interchangeable cross-reference
interchangeable
19-02-1608Interchangeable
interchangeable cross-reference
interchangeable
MILH24136Interchangeable
interchangeable cross-reference
interchangeable
365751PC3Interchangeable
interchangeable cross-reference
interchangeable
36J643PC13Interchangeable
interchangeable cross-reference
interchangeable
C1-241Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 305090?
305090 is a BATTERY,NONRECHARGEABLE manufactured by Hama.
What parts can replace 305090?
There are 19 known substitutes for 305090: 4730PL1340532, 19-02-1608, MILH24136 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 305090?
305090 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-087-8528. 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