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Technical Data Sheet
US20 ✓ Verified by PartsTable
Larsen · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

We’ve got no trouble as life is all bubbles, under the sea. Deep down in this decorative and illustrative puzzle is where you’ll find all the treasures and jewels. The puzzle features four precious mermaids exploring their home.

One mermaid stretches above the water, reaching for the humans. Could she be asking for some company or threatening them to stay away? In the ocean, you’ll find a great white shark, a killer whale, a sea turtle, a large pink octopus, a dolphin, seagulls, and a variety of exotic fishes. The colourful corals lay neatly beneath the mermaids like a rug against the floor.

Above water, a group of tropical palm trees can be spotted. This puzzle comes complete with 32 pieces, with some of the pieces shaped like a cat, a bird and a bunny and an ornament. What could the ornament be? This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-532-9231, indicating validated use in U.S.

government and defense logistics supply chains.

WHERE IT FITS
US20
NSN: 5340-00-532-9231
FSC: 5340
CAGE: 77432 — INTERNATIONAL PARTS CORP DIV OF MIDAS-INTERNATIONAL CORP (USA)
SPECIFICATIONS
materialSTEEL BAND
overall_width0.750 INCHES NOMINAL IN
style_designatorTWO PIECE
material_thickness0.375 INCHES NOMINAL IN
loop_inside_diameter4.125 INCHES NOMINAL IN
NSN5340-00-532-9231
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: US20 MFR: Larsen ⚠ 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
LOOP INSIDE DIAMETER: 4.125 INCHES NOMINAL IN
STYLE DESIGNATOR: TWO PIECE
MATERIAL: STEEL BAND
MATERIAL THICKNESS: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONTRUCK, CARGO, DROPSIDE, 5-TON, 6X6 (M813A1, M-923, M-925); TRUCK, CARGO, 5-TON, 6X6, XLWB W/E; CRANE, TRUCK MOUNTED; HYL 25-TON CAT (CCE); SHIPBOARD MATERIAL HANDLING EQUIPMENT (MHE); AIRBORNE MOBILE DIR AIR SPT CTL (2ID), (02M JUL83) (AN/UYQ-3A); A/S32R-11 REFUELING TRUCK; RADAR SET, FIREFINDER (AN/TPQ-36); TRUCK, CARGO, DROPSIDE, XLWB, 5-TON, 6X6 (M814, M927, M928); TRUCK, FIRE/CRASH P2 A
OVERALL WIDTH0.750 INCHES NOMINAL IN
LOOP INSIDE DIAMETER4.125 INCHES NOMINAL IN
STYLE DESIGNATORTWO PIECE
MATERIALSTEEL BAND
MATERIAL THICKNESS0.375 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
C4Upgraded Successor
successor cross-reference
successor
U400Upgraded Successor
successor cross-reference
successor
922CUpgraded Successor
successor cross-reference
successor
6639Interchangeable
interchangeable cross-reference
interchangeable
53-215Interchangeable
interchangeable cross-reference
interchangeable
X400Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is US20?
US20 is a CLAMP,LOOP manufactured by Larsen.
What parts can replace US20?
There are 29 known substitutes for US20: C4, U400, 922C and 26 more. Substitute compatibility should be verified for your specific system.
Is US20 still available?
US20 is currently cancelled.
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