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Technical Data Sheet
AS21919WCH09 ✓ 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: 0.563 INCHES NOMINAL IN, material: STEEL COMP 321 BAND, overall_width: 0.375 INCHES NOMINAL 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 5340-01-567-9492, 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
AS21919WCH09
NSN: 5340-01-567-9492
FSC: 5340
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
diameter0.563 INCHES NOMINAL IN
materialSTEEL COMP 321 BAND
overall_width0.375 INCHES NOMINAL IN
style_designatorOFFSET MOUNT
tongue_hole_typeROUND, UNTHREADED
surface_treatmentPASSIVATE BAND
material_thickness0.032 INCHES NOMINAL IN
loop_inside_diameter0.548 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
specification/standard_data81343-AS21919WCH9 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
cushioning_environmental_protectionCORROSION RESISTANT AND WEATHER RESISTANT AND OIL RESISTANT
material_document_and_classificationMIL-S-6721 MIL SPEC SINGLE MATERIAL RESPONSE BAND
distance_from_loop_center_to_tongue_end0.971 INCHES NOMINAL IN
NSN5340-01-567-9492
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS21919WCH09 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
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE BAND
MATERIAL: RUBBER SILICONE CLASS Q CUSHION
MATERIAL DOCUMENT AND CLASSIFICATION: AMS3303 ASSN STD SINGLE MATERIAL RESPONSE CUSHION
SPECIFICATION/STANDARD DATA: 81343-AS21919WCH9 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
STYLE DESIGNATOR: OFFSET MOUNT
SURFACE TREATMENT: PASSIVATE BAND
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE BAND
PART NAME ASSIGNED BY CONTROLLING AGENCYCLAMP.LOOP
MATERIALRUBBER SILICONE CLASS Q CUSHION
MATERIAL DOCUMENT AND CLASSIFICATIONAMS3303 ASSN STD SINGLE MATERIAL RESPONSE CUSHION
MATERIALSTEEL COMP 321 BAND
SPECIFICATION/STANDARD DATA81343-AS21919WCH9 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
STYLE DESIGNATOROFFSET MOUNT
SURFACE TREATMENTPASSIVATE BAND
TEST DATA DOCUMENTAS21919WCH9 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6721 MIL SPEC SINGLE MATERIAL RESPONSE BAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
AS21919WCG14Upgraded Successor
successor cross-reference
successor
10112740Upgraded Successor
successor cross-reference
successor
AS21919Upgraded Successor
successor cross-reference
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 AS21919WCH09?
AS21919WCH09 is a CLAMP,LOOP.
What parts can replace AS21919WCH09?
There are 24 known substitutes for AS21919WCH09: AS21919WCG14, 10112740, AS21919 and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS21919WCH09?
AS21919WCH09 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-567-9492. This indicates validated use in U.S. government and defense supply chains.
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