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PartsTable / COMPONENT / MS21919WG40
MS21919WG40 ✓ 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: RUBBER CHLOROPRENE CLASS CR CUSHION, overall_width: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN, style_designator: OFFSET MOUNT, surface_treatment: CADMIUM BAND, material_thickness: 0.040 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-050-6866, 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
MS21919WG40
NSN: 5340-00-050-6866
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
materialRUBBER CHLOROPRENE CLASS CR CUSHION
overall_width0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
style_designatorOFFSET MOUNT
surface_treatmentCADMIUM BAND
material_thickness0.040 INCHES NOMINAL IN
loop_inside_diameter2.485 INCHES MINIMUM AND 2.515 INCHES MAXIMUM IN
cushioning_environmental_protectionWEATHER RESISTANT
material_document_and_classificationAMS 3209 ASSN STD SINGLE MATERIAL RESPONSE CUSHION
distance_from_loop_center_to_tongue_end1.946 INCHES NOMINAL IN
surface_treatment_document_and_classificationQQ-P-416 TY 1 CL 2 FED SPEC SINGLE TREATMENT RESPONSE BAND
center_to_center_distance_between_loop_and_mounting_hole1.713 INCHES MINIMUM AND 1.743 INCHES MAXIMUM IN
NSN5340-00-050-6866
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS21919WG40 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 CHLOROPRENE CLASS CR CUSHION
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TY 1 CL 2 FED SPEC SINGLE TREATMENT RESPONSE BAND
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 3209 ASSN STD SINGLE MATERIAL RESPONSE CUSHION
•
CUSHIONING ENVIRONMENTAL PROTECTION: WEATHER RESISTANT
•
DISTANCE FROM LOOP CENTER TO TONGUE END: 1.946 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM BAND
•
DIAMETER: 0.204 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER CHLOROPRENE CLASS CR CUSHION
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 1 CL 2 FED SPEC SINGLE TREATMENT RESPONSE BAND
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 3209 ASSN STD SINGLE MATERIAL RESPONSE CUSHION
OVERALL WIDTH0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
CUSHIONING ENVIRONMENTAL PROTECTIONWEATHER RESISTANT
DISTANCE FROM LOOP CENTER TO TONGUE END1.946 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM BAND
DIAMETER0.204 INCHES NOMINAL IN
MATERIALSTEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1020 BAND
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE1.713 INCHES MINIMUM AND 1.743 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
MILC8603Upgraded Successor
successor cross-reference
successor
99122Upgraded Successor
successor cross-reference
successor
MS21919G8Upgraded Successor
successor cross-reference
successor
5096D16Upgraded Successor
successor cross-reference
successor
534002989402Upgraded Successor
successor cross-reference
successor
MS21919G11Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS21919WG40?
MS21919WG40 is a CLAMP,LOOP.
What parts can replace MS21919WG40?
There are 24 known substitutes for MS21919WG40: MILC8603, 99122, MS21919G8 and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21919WG40?
MS21919WG40 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-050-6866. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026