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12521903 — COVER,PROTECTIVE,DUST AND MOISTU

✓ Government record, cited
Sony · ORING SEAL
PRODUCT OVERVIEW

12521903: COVER,PROTECTIVE,DUST AND MOISTU.

Wi-Fi connect Connect the quick and easy way. On the move. In cafés.

At the airport. Your Mix Walkman™ phone has Wi-Fi support. Touch UI The touch user interface makes navigation truly intuitive - whether you're browsing the media menu, adjusting your camera settings or playing music.

Zappin™ When pressing the Zappin™ key the phone will recognize and play 4s or 15s of the chorus of the song. You’ll know immediately if it’s the song you want to hear. Just press the key again and it will start the song from the beginning.

With Zappin™ the music power is in your hand. Chat away with Google Talk Send instant messages to your friends along with the pic of the day. Keep an eye on the status updates of long-distance friends.

Then call them PC- PC for free. Karaoke Press the Microphone button in the right bottom corner to launch Karaoke view. Sing along with the lyrics by pressing the buttons on the screen like play/ This part is cataloged in the U.S.

Government catalog under NSN 5340-01-596-4889, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
12521903
NSN: 5340-01-596-4889
FSC: 5340 — Hardware, Commercial
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
Part Number12521903
ManufacturerSony
NSN5340-01-596-4889
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12521903 MFR: Sony ⚠ 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
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12521903?
12521903 is a COVER,PROTECTIVE,DUST AND MOISTU manufactured by Sony.
What is the NSN for 12521903?
12521903 is cataloged in the U.S. Government catalog under NSN 5340-01-596-4889. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.