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PartsTable / COMPONENT / MS21333-126
MS21333-126 ✓ 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: 0.406 INCHES NOMINAL IN, material: STEEL BAND, overall_width: 0.625 INCHES NOMINAL IN, style_designator: SINGLE LOOP, surface_treatment: CADMIUM OR ZINC AND CHROMATE BAND, material_thickness: 0.032 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-053-8994, 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
MS21333-126
NSN: 5340-00-053-8994
FSC: 5340
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
diameter0.406 INCHES NOMINAL IN
materialSTEEL BAND
overall_width0.625 INCHES NOMINAL IN
style_designatorSINGLE LOOP
surface_treatmentCADMIUM OR ZINC AND CHROMATE BAND
material_thickness0.032 INCHES NOMINAL IN
loop_inside_diameter0.750 INCHES NOMINAL IN
end_item_identificationMRAP RG-33; MRAP - COUGAR CAT2 A2; MRAP - M-ATV DV178; MRAP - COUGAR CAT1 A2; MRAP - COUGAR CAT1 A1
material_document_and_classificationAISI C1005 THRU C1020 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1006 THRU 1020 ASSN STD SINGLE MATERIAL RESPONSE BAND
distance_from_loop_center_to_tongue_end1.281 INCHES NOMINAL IN
center_to_center_distance_between_loop_and_mounting_hole0.969 INCHES NOMINAL IN
NSN5340-00-053-8994
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS21333-126 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: RUBBER SYNTHETIC CUSHION
•
MATERIAL THICKNESS: 0.032 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE: 0.969 INCHES NOMINAL IN
•
DIAMETER: 0.406 INCHES NOMINAL IN
•
DISTANCE FROM LOOP CENTER TO TONGUE END: 1.281 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SINGLE LOOP
•
LOOP INSIDE DIAMETER: 0.750 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OR ZINC AND CHROMATE BAND
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC CUSHION
MATERIAL THICKNESS0.032 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE0.969 INCHES NOMINAL IN
DIAMETER0.406 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END1.281 INCHES NOMINAL IN
STYLE DESIGNATORSINGLE LOOP
LOOP INSIDE DIAMETER0.750 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OR ZINC AND CHROMATE BAND
MATERIAL DOCUMENT AND CLASSIFICATIONAISI C1005 THRU C1020 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1006 THRU 1020 ASSN STD SINGLE MATERIAL RESPONSE BAND
MATERIALSTEEL BAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
7373381Upgraded Successor
successor cross-reference
successor
7529133Upgraded Successor
successor cross-reference
successor
7529133-4Upgraded Successor
successor cross-reference
successor
7373360Upgraded Successor
successor cross-reference
successor
7397782Upgraded Successor
successor cross-reference
successor
5340011681528Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS21333-126?
MS21333-126 is a CLAMP,LOOP.
What parts can replace MS21333-126?
There are 16 known substitutes for MS21333-126: 7373381, 7529133, 7529133-4 and 13 more. Substitute compatibility should be verified for your specific system.
Is MS21333-126 still available?
MS21333-126 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