PartsTable
Technical Data Sheet
8121-4 ✓ 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

- For the Panasonic CGR-D08/D120, CGR-D16/D220, CGR-D28/D320 batteries<br>- Suitable for the universal charger - base station item no. 81200. Key specifications include color: WHITE, material: COTTON, part_name_assigned_by_controlling_agency: TWILL-JEAN CLEANING CLOTH.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-111-3762, 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
8121-4
NSN: 5330-00-111-3762
FSC: 5330
CAGE: 28193 — HENRY TECHNOLOGIES, INC. (USA)
SPECIFICATIONS
colorWHITE
materialCOTTON
special_features4 INCH X 4 INCH; FOR POLISHING SENSITIVE EM PARTS AND CLEANING DELICATE PARTS; CAN BE USED TO CLEAN SOFT AND PRECIOUS METALS IN
part_name_assigned_by_controlling_agencyTWILL-JEAN CLEANING CLOTH
NSN5330-00-111-3762
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8121-4 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
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR METAL
OUTSIDE DIAMETER: 0.671 INCHES NOMINAL IN
MATERIAL: COPPER OVERALL
CROSS-SECTIONAL THICKNESS: 0.031 INCHES NOMINAL IN
STYLE DESIGNATOR: CIRCULAR
APERTURE DIAMETER: 0.578 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLERECTANGULAR METAL
OUTSIDE DIAMETER0.671 INCHES NOMINAL IN
MATERIALCOPPER OVERALL
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
APERTURE DIAMETER0.578 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
878225Interchangeable
interchangeable cross-reference
interchangeable
PRP568-225-975-75Interchangeable
interchangeable cross-reference
interchangeable
2-225 V747-75Interchangeable
interchangeable cross-reference
interchangeable
81-214Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8121-4?
8121-4 is a O-RING manufactured by Hama.
What parts can replace 8121-4?
There are 4 known substitutes for 8121-4: 878225, PRP568-225-975-75, 2-225 V747-75 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8121-4?
8121-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-111-3762. This indicates validated use in U.S. government and defense supply chains.
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