PartsTable
Technical Data Sheet
PartsTable / O-RING / 81-268
81-268 ✓ Verified by PartsTable
Cellularline · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

Hard cases with laminated back and metallic finish with screen protector included<br><br>TECHNO cases for iPhone 4 present a laminated back with metallic finish and diverse textures to satisfy the needs of people who want to protect their phone preserving a minimal and technological look. The transparent edge makes the case almost invisible, allowing a complete customization of the phone with no increase in size and ensuring maximum protection.<br><br>Every TECHNO case comes with a precision-cut screen protector that shields the display without affecting the touch screen functions. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-167-5149, indicating validated use in U.S.

government and defense logistics supply chains.

WHERE IT FITS
81-268
NSN: 5331-00-167-5149
FSC: 5331 — O-RING
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
temp_rating-20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
overall_length0.210 INCHES MAXIMUM IN
transfer_ratio80.0 MINIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER ALL TRANSISTOR
hardness_rating75.0 SHORE DUROMETER A NOMINAL
mounting_methodTERMINAL
terminal_length0.500 INCHES MINIMUM IN
overall_diameter0.230 INCHES MAXIMUM IN
special_featuresALL TRANSISTOR JUNCTION PATTERN ARRANGEMENT: NPN
features_providedHERMETICALLY SEALED CASE
center_hole_diameter8.434 INCHES MINIMUM AND 8.534 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN5331-00-167-5149
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 81-268 MFR: Cellularline ⚠ 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
•
CENTER HOLE DIAMETER: 8.434 INCHES MINIMUM AND 8.534 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
•
TEMP RATING: -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER8.434 INCHES MINIMUM AND 8.534 INCHES MAXIMUM IN
MATERIALRUBBER FLUOROCARBON CLASS FPM
TEMP RATING-20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
10V60-141-268Interchangeable
interchangeable cross-reference
interchangeable
GS570EM268Interchangeable
interchangeable cross-reference
interchangeable
2-268 N602-70Interchangeable
interchangeable cross-reference
interchangeable
IT122Interchangeable
interchangeable cross-reference
interchangeable
81-268Interchangeable
interchangeable cross-reference
interchangeable
845-2180963 PC 22Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81-268?
81-268 is a SEMICONDUCTOR DEVICES,UNITIZED manufactured by Cellularline.
What parts can replace 81-268?
There are 18 known substitutes for 81-268: 10V60-141-268, GS570EM268, 2-268 N602-70 and 15 more. Substitute compatibility should be verified for your specific system.
Is 81-268 still available?
81-268 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026