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Technical Data Sheet
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8521-1 — ADAPTER,STRAIGHT,TUBE TO HOSE

✓ Government record, cited
Origin Storage · ORING SEAL
PRODUCT OVERVIEW

8521-1: ADAPTER,STRAIGHT,TUBE TO HOSE.

With ST to ST termination, this high quality fibre optic patch cable is specifically designed for Fast Ethernet, fibre channel, ATM and Gigabit Ethernet applications. The ST connector features a bayonet locking system. The Low Smoke Zero Halogen (LSZH / LS0H) jacket is composed from materials that lessen the smoke and halogen emissions when the cable is exposed to extreme temperatures.

This reduces the amount of harmful toxic and corrosive gases that cabling made with plastic materials would otherwise emit into the air during combustion. This construction makes LSZH cables ideal for use where the protection of people and equipment from harmful corrosive gases is absolutely critical. The patented injection moulding process provides each connection greater durability in resisting pulls, strains and impacts from cabling installs.

Each cable is 100% optically inspected and tested for insertion loss before you receive it. This part is cataloged in the U.S. Government catalog under NSN 5340-00-532-9413, indicating validated use in U.S.

government and defense logistics supply chains.

WHERE IT FITS
8521-1
NSN: 5340-00-532-9413
NIINs: 005329413, 012306592, 013343299
FSC: 5340 — Hardware, Commercial
CAGE: 77294 — PIPER INDUSTRIAL MANUFACTURING COMPANY, LLC DIV PIPER INDUSTRIAL MANUFACTURING COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class3A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_stylePLAIN (TUBE) FIRST END
operating_pressure5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.562 INCHES FIRST END IN
end_item_identificationAN/FPS-117 RADAR SET
thread_series_designatorUNF FIRST END
nominal_inside_diameter_hose_accommodated0.250 INCHES SECOND END IN
nominal_outside_diameter_tube_accommodated0.562 INCHES FIRST END IN
NSN5340-00-532-9413
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8521-1 MFR: Origin Storage ⚠ 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
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8521-1?
8521-1 is a ADAPTER,STRAIGHT,TUBE TO HOSE manufactured by Origin Storage.
What is the NSN for 8521-1?
8521-1 is cataloged in the U.S. Government catalog under NSN 5340-00-532-9413. This indicates validated use in U.S. government and defense supply chains.
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