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PC120521 — CLAMP,LOOP

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

PC120521: CLAMP,LOOP.

The CLAMP,LOOP is a the manufacturer industrial component. Key specifications include diameter: 0.281 INCHES NOMINAL IN, material: STEEL BAND, slot_length: 0.0375 INCHES NOMINAL IN, overall_width: 0.500 INCHES NOMINAL IN, style_designator: SINGLE LOOP, tongue_hole_type: ROUND, UNTHREADED. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-282-7542, 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
PC120521
NSN: 5340-00-282-7542
FSC: 5340 — Hardware, Commercial
CAGE: C7432 — POWER COMPONENTS (DEUTSCHLAND) GMBH (DEU)
SPECIFICATIONS
diameter0.281 INCHES NOMINAL IN
materialSTEEL BAND
slot_length0.0375 INCHES NOMINAL IN
overall_width0.500 INCHES NOMINAL IN
style_designatorSINGLE LOOP
tongue_hole_typeROUND, UNTHREADED
surface_treatmentZINC OR CADMIUM BAND
material_thickness0.025 INCHES NOMINAL IN
loop_inside_diameter0.250 INCHES NOMINAL IN
nondefinitive_spec/std_data120521 PART
material_document_and_classificationQQ-S-640,T2 OR T3 FED SPEC SINGLE MATERIAL RESPONSE BAND
distance_from_loop_center_to_tongue_end0.750 INCHES NOMINAL IN
NSN5340-00-282-7542
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: PC120521 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: SINGLE LOOP
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-640,T2 OR T3 FED SPEC SINGLE MATERIAL RESPONSE BAND
•
DIAMETER: 0.281 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.025 INCHES NOMINAL IN
•
DISTANCE FROM LOOP CENTER TO TONGUE END: 0.750 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: 120521 PART
•
SURFACE TREATMENT: ZINC OR CADMIUM BAND
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSINGLE LOOP
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-640,T2 OR T3 FED SPEC SINGLE MATERIAL RESPONSE BAND
DIAMETER0.281 INCHES NOMINAL IN
OVERALL WIDTH0.500 INCHES NOMINAL IN
MATERIAL THICKNESS0.025 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END0.750 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA120521 PART
SURFACE TREATMENTZINC OR CADMIUM BAND
TONGUE HOLE TYPEROUND, UNTHREADED
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE0.500 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
120521Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is PC120521?
PC120521 is a CLAMP,LOOP.
What parts can replace PC120521?
There is 1 known substitute for PC120521: 120521. Substitute compatibility should be verified for your specific system.
What is the NSN for PC120521?
PC120521 is cataloged in the U.S. Government catalog under NSN 5340-00-282-7542. 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.