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PartsTable / COMPONENT / AS21919WCJ04
AS21919WCJ04 ✓ 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: PLASTIC POLYTETRAFLUOROETHYLENE CUSHION, overall_width: 0.500 INCHES NOMINAL IN, style_designator: SINGLE LOOP, surface_treatment: PASSIVATE BAND, material_thickness: 0.032 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-103-2945, 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
AS21919WCJ04
NSN: 5340-00-103-2945
FSC: 5340
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
diameter0.204 INCHES NOMINAL IN
materialPLASTIC POLYTETRAFLUOROETHYLENE CUSHION
overall_width0.500 INCHES NOMINAL IN
style_designatorSINGLE LOOP
surface_treatmentPASSIVATE BAND
material_thickness0.032 INCHES NOMINAL IN
loop_inside_diameter0.250 INCHES NOMINAL IN
cushioning_environmental_protectionFUEL, AROMATIC
material_document_and_classificationMIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE OR AMS 5510 ASSN STD 2ND MATERIAL RESPONSE BAND
distance_from_loop_center_to_tongue_end0.717 INCHES NOMINAL IN
center_to_center_distance_between_loop_and_mounting_hole0.529 INCHES NOMINAL IN
NSN5340-00-103-2945
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS21919WCJ04 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 DOCUMENT AND CLASSIFICATION: AMS 3651 ASSN STD SINGLE MATERIAL RESPONSE CUSHION
•
MATERIAL THICKNESS: 0.032 INCHES NOMINAL IN
•
CUSHIONING ENVIRONMENTAL PROTECTION: FUEL, AROMATIC
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE CUSHION
•
STYLE DESIGNATOR: SINGLE LOOP
•
SURFACE TREATMENT: PASSIVATE BAND
•
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE: 0.529 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 3651 ASSN STD SINGLE MATERIAL RESPONSE CUSHION
MATERIAL THICKNESS0.032 INCHES NOMINAL IN
CUSHIONING ENVIRONMENTAL PROTECTIONFUEL, AROMATIC
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE CUSHION
MATERIALSTEEL COMP 302 OR STEEL COMP 321 BAND
STYLE DESIGNATORSINGLE LOOP
SURFACE TREATMENTPASSIVATE BAND
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE0.529 INCHES NOMINAL IN
LOOP INSIDE DIAMETER0.250 INCHES NOMINAL IN
DIAMETER0.204 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
AS21919WCG14Upgraded Successor
successor cross-reference
successor
10112740Upgraded Successor
successor cross-reference
successor
AS21919Upgraded Successor
successor cross-reference
successor
1-300-271-03Upgraded Successor
successor cross-reference
successor
8016S4Upgraded Successor
successor cross-reference
successor
MIL-DTL-8603Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS21919WCJ04?
AS21919WCJ04 is a CLAMP,LOOP.
What parts can replace AS21919WCJ04?
There are 30 known substitutes for AS21919WCJ04: AS21919WCG14, 10112740, AS21919 and 27 more. Substitute compatibility should be verified for your specific system.
Is AS21919WCJ04 still available?
AS21919WCJ04 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