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PartsTable / COMPONENT / MS21919WCJ9
MS21919WCJ9 ✓ 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: STEEL COMP 321 OR STEEL COMP 348 BAND, overall_width: 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN, style_designator: OFFSET MOUNT, tongue_hole_type: ROUND, UNTHREADED, surface_treatment: PASSIVATE BAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-500-0403, 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
MS21919WCJ9
NSN: 5340-00-500-0403
FSC: 5340
CAGE: 1CQA5 — SKOOKUM EDUCATIONAL PROGRAMS DBA TESSERA (USA)
SPECIFICATIONS
diameter0.204 INCHES NOMINAL IN
materialSTEEL COMP 321 OR STEEL COMP 348 BAND
overall_width0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
style_designatorOFFSET MOUNT
tongue_hole_typeROUND, UNTHREADED
surface_treatmentPASSIVATE BAND
material_thickness0.029 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
loop_inside_diameter0.548 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
cushioning_environmental_protectionFUEL, AROMATIC AND HYDRAULIC FLUID AND OIL RESISTANT
material_document_and_classificationMIL-S-6721 MIL SPEC ALL MATERIAL RESPONSES BAND
distance_from_loop_center_to_tongue_end0.952 INCHES MINIMUM AND 0.982 INCHES MAXIMUM IN
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE BAND
NSN5340-00-500-0403
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS21919WCJ9 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: 0.952 INCHES MINIMUM AND 0.982 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-25988 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-R-25897 MIL SPEC SINGLE MATERIAL RESPONSE CUSHION
•
SURFACE TREATMENT: PASSIVATE BAND
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE BAND
•
DIAMETER: 0.204 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE: 0.734 INCHES MINIMUM AND 0.764 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.029 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
DISTANCE FROM LOOP CENTER TO TONGUE END0.952 INCHES MINIMUM AND 0.982 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-25988 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-R-25897 MIL SPEC SINGLE MATERIAL RESPONSE CUSHION
SURFACE TREATMENTPASSIVATE BAND
OVERALL WIDTH0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE BAND
DIAMETER0.204 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE0.734 INCHES MINIMUM AND 0.764 INCHES MAXIMUM IN
MATERIAL THICKNESS0.029 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
LOOP INSIDE DIAMETER0.548 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6721 MIL SPEC ALL MATERIAL RESPONSES BAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
MIL-DTL-8603Upgraded Successor
successor cross-reference
successor
TA1716WS4Upgraded Successor
successor cross-reference
successor
MS21919WG4Upgraded Successor
successor cross-reference
successor
10335339Upgraded Successor
successor cross-reference
successor
AS21919WCG03Upgraded Successor
successor cross-reference
successor
AS21919Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS21919WCJ9?
MS21919WCJ9 is a CLAMP,LOOP.
What parts can replace MS21919WCJ9?
There are 17 known substitutes for MS21919WCJ9: MIL-DTL-8603, TA1716WS4, MS21919WG4 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21919WCJ9?
MS21919WCJ9 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-500-0403. 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