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Technical Data Sheet
PartsTable / COMPONENT / MS21103D3
MS21103D3 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The CLAMP,LOOP is a the manufacturer industrial component. Key specifications include diameter: 0.204 INCHES NOMINAL IN, material: ALUMINUM ALLOY 2024 BAND, overall_width: 0.500 INCHES NOMINAL IN, style_designator: SINGLE LOOP, tongue_hole_type: ROUND, UNTHREADED, material_thickness: 0.032 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-531-6856, 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
MS21103D3
NSN: 5340-00-531-6856
FSC: 5340
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
diameter0.204 INCHES NOMINAL IN
materialALUMINUM ALLOY 2024 BAND
overall_width0.500 INCHES NOMINAL IN
style_designatorSINGLE LOOP
tongue_hole_typeROUND, UNTHREADED
material_thickness0.032 INCHES NOMINAL IN
loop_inside_diameter0.188 INCHES NOMINAL IN
material_document_and_classificationQQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE BAND
distance_from_loop_center_to_tongue_end0.611 INCHES NOMINAL IN
center_to_center_distance_between_loop_and_mounting_hole0.423 INCHES NOMINAL IN
NSN5340-00-531-6856
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS21103D3 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE BAND
•
TONGUE HOLE TYPE: ROUND, UNTHREADED
•
STYLE DESIGNATOR: SINGLE LOOP
•
MATERIAL: ALUMINUM ALLOY 2024 BAND
•
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE: 0.423 INCHES NOMINAL IN
•
LOOP INSIDE DIAMETER: 0.188 INCHES NOMINAL IN
•
DIAMETER: 0.204 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE BAND
TONGUE HOLE TYPEROUND, UNTHREADED
STYLE DESIGNATORSINGLE LOOP
MATERIALALUMINUM ALLOY 2024 BAND
OVERALL WIDTH0.500 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE0.423 INCHES NOMINAL IN
LOOP INSIDE DIAMETER0.188 INCHES NOMINAL IN
DIAMETER0.204 INCHES NOMINAL IN
MATERIAL THICKNESS0.032 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END0.611 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
6739844-17Upgraded Successor
successor cross-reference
successor
C8603ANDTYPE1ANDCLASSAUpgraded Successor
successor cross-reference
successor
24CUpgraded Successor
successor cross-reference
successor
754-22-2-8Upgraded Successor
successor cross-reference
successor
5340007269322Upgraded Successor
successor cross-reference
successor
5340PL0727323Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS21103D3?
MS21103D3 is a CLAMP,LOOP.
What parts can replace MS21103D3?
There are 23 known substitutes for MS21103D3: 6739844-17, C8603ANDTYPE1ANDCLASSA, 24C and 20 more. Substitute compatibility should be verified for your specific system.
Is MS21103D3 still available?
MS21103D3 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026