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ST1540-12 — CLAMP,LOOP

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

ST1540-12: CLAMP,LOOP.

The CLAMP,LOOP is a the manufacturer industrial component. Key specifications include end_item_identification: KC-46 AIRCRAFT, reference_number_differentiating_characteristics: ITEM IS FAA CERTIFIED. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-340-5201, 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
ST1540-12
NSN: 5340-01-340-5201
NIINs: 013405201, 016694829
FSC: 5340 — Hardware, Commercial
CAGE: 18076 — UMPCO, INC. DBA UMPCO INC (USA)
SPECIFICATIONS
end_item_identificationKC-46 AIRCRAFT
reference_number_differentiating_characteristicsITEM IS FAA CERTIFIED
NSN5340-01-340-5201
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ST1540-12 MFR: OEM ⚠ 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
•
STYLE DESIGNATOR: OFFSET MOUNT
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS5510 ASSN STD SINGLE MATERIAL RESPONSE BAND
•
DIAMETER: 0.204 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.051 INCHES NOMINAL IN
•
DISTANCE FROM LOOP CENTER TO TONGUE END: 1.028 INCHES MINIMUM AND 1.088 INCHES MAXIMUM IN
•
TONGUE HOLE TYPE: ROUND, UNTHREADED
TECHNICAL CHARACTERISTICS
STYLE DESIGNATOROFFSET MOUNT
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5510 ASSN STD SINGLE MATERIAL RESPONSE BAND
MATERIAL DOCUMENT AND CLASSIFICATIONPWA36450 MFR REF SINGLE MATERIAL RESPONSE CUSHION
DIAMETER0.204 INCHES NOMINAL IN
OVERALL WIDTH0.500 INCHES NOMINAL IN
MATERIAL THICKNESS0.051 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END1.028 INCHES MINIMUM AND 1.088 INCHES MAXIMUM IN
TONGUE HOLE TYPEROUND, UNTHREADED
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE0.805 INCHES MINIMUM AND 0.865 INCHES MAXIMUM IN
MATERIALRUBBER SILICONE CLASS Q CUSHION
SUBSTITUTES & CROSS-REFERENCES 1
5340PL0805249Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST1540-12?
ST1540-12 is a CLAMP,LOOP.
What parts can replace ST1540-12?
There is 1 known substitute for ST1540-12: 5340PL0805249. Substitute compatibility should be verified for your specific system.
What is the NSN for ST1540-12?
ST1540-12 is cataloged in the U.S. Government catalog under NSN 5340-01-340-5201. 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.