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PartsTable / COMPONENT / MS21919WCJ43
MS21919WCJ43 ✓ 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 material: STEEL COMP 321 BAND, overall_width: 0.500 INCHES NOMINAL IN, style_designator: OFFSET MOUNT, surface_treatment: PASSIVATE BAND, material_thickness: 0.040 INCHES NOMINAL IN, loop_inside_diameter: 2.688 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 5340-01-577-3274, 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
MS21919WCJ43
NSN: 5340-01-577-3274
FSC: 5340
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 321 BAND
overall_width0.500 INCHES NOMINAL IN
style_designatorOFFSET MOUNT
surface_treatmentPASSIVATE BAND
material_thickness0.040 INCHES NOMINAL IN
loop_inside_diameter2.688 INCHES NOMINAL IN
material_document_and_classificationAMS5510 ASSN STD SINGLE MATERIAL RESPONSE BAND
distance_from_loop_center_to_tongue_end2.039 INCHES NOMINAL IN
surface_treatment_document_and_classificationAMS-QQ-P-35 ASSN STD SINGLE TREATMENT RESPONSE BAND
center_to_center_distance_between_loop_and_mounting_hole1.820 INCHES NOMINAL IN
NSN5340-01-577-3274
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS21919WCJ43 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
•
DISTANCE FROM LOOP CENTER TO TONGUE END: 2.039 INCHES NOMINAL IN
•
LOOP INSIDE DIAMETER: 2.688 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS-QQ-P-35 ASSN STD SINGLE TREATMENT RESPONSE BAND
•
MATERIAL: STEEL COMP 321 BAND
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS5510 ASSN STD SINGLE MATERIAL RESPONSE BAND
•
SURFACE TREATMENT: PASSIVATE BAND
TECHNICAL CHARACTERISTICS (FLIS)
DISTANCE FROM LOOP CENTER TO TONGUE END2.039 INCHES NOMINAL IN
LOOP INSIDE DIAMETER2.688 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS-QQ-P-35 ASSN STD SINGLE TREATMENT RESPONSE BAND
MATERIALSTEEL COMP 321 BAND
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5510 ASSN STD SINGLE MATERIAL RESPONSE BAND
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-25988, TYII MIL SPEC SINGLE MATERIAL RESPONSE CUSHION
SURFACE TREATMENTPASSIVATE BAND
MATERIALRUBBER FLUOROSILICONE CLASS FQ CUSHION
STYLE DESIGNATOROFFSET MOUNT
MATERIAL THICKNESS0.040 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
AS21919WDG43Upgraded Successor
successor cross-reference
successor
10086625Upgraded Successor
successor cross-reference
successor
AS21919Upgraded Successor
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successor
TA1718SS4TUpgraded Successor
successor cross-reference
successor
SAE-AS21919Upgraded Successor
successor cross-reference
successor
10117251Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS21919WCJ43?
MS21919WCJ43 is a CLAMP,LOOP.
What parts can replace MS21919WCJ43?
There are 27 known substitutes for MS21919WCJ43: AS21919WDG43, 10086625, AS21919 and 24 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21919WCJ43?
MS21919WCJ43 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-577-3274. 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