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421A40SS — STRAP,RETAINING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

421A40SS: STRAP,RETAINING.

The STRAP,RETAINING is a the manufacturer industrial component. Key specifications include cushion: INCLUDED, material: STEEL COMP 321 OR STEEL COMP 347 LOCATION NOT OTHERWISE SPECIFIED, mounting_pad: NOT INCLUDED, overall_width: 0.500 INCHES NOMINAL IN, overall_length: 3.996 INCHES NOMINAL IN, style_designator: SADDLE ARCH. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-215-7709, 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
421A40SS
NSN: 5340-01-215-7709
FSC: 5340 — Hardware, Commercial
CAGE: 83930 — TRANSDIGM INC DBA ADEL WIGGINS GROUP DIV ADEL WIGGINS (USA)
SPECIFICATIONS
cushionINCLUDED
materialSTEEL COMP 321 OR STEEL COMP 347 LOCATION NOT OTHERWISE SPECIFIED
mounting_padNOT INCLUDED
overall_width0.500 INCHES NOMINAL IN
overall_length3.996 INCHES NOMINAL IN
style_designatorSADDLE ARCH
material_thickness0.064 INCHES NOMINAL IN
mounting_hole_size0.204 INCHES NOMINAL IN
inside_diameter/arch_length2.520 INCHES NOMINAL IN
distance_between_mounting_hole_centers3.560 INCHES NOMINAL IN
distance_between_base_and_inside_of_arch2.616 INCHES NOMINAL IN
NSN5340-01-215-7709
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 421A40SS 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
•
MOUNTING HOLE SIZE: 0.204 INCHES NOMINAL IN
•
DISTANCE BETWEEN MOUNTING HOLE CENTERS: 3.560 INCHES NOMINAL IN
•
MOUNTING PAD: NOT INCLUDED
•
STYLE DESIGNATOR: SADDLE ARCH
•
MATERIAL THICKNESS: 0.064 INCHES NOMINAL IN
•
CUSHION: INCLUDED
TECHNICAL CHARACTERISTICS
MOUNTING HOLE SIZE0.204 INCHES NOMINAL IN
DISTANCE BETWEEN MOUNTING HOLE CENTERS3.560 INCHES NOMINAL IN
MOUNTING PADNOT INCLUDED
STYLE DESIGNATORSADDLE ARCH
OVERALL LENGTH3.996 INCHES NOMINAL IN
OVERALL WIDTH0.500 INCHES NOMINAL IN
MATERIAL THICKNESS0.064 INCHES NOMINAL IN
CUSHIONINCLUDED
DISTANCE BETWEEN BASE AND INSIDE OF ARCH2.616 INCHES NOMINAL IN
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE CUSHIONING
SUBSTITUTES & CROSS-REFERENCES 3
JM45SC3H40TSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
TA04C36H40Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
TA04C36H07Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 421A40SS?
421A40SS is a STRAP,RETAINING.
What parts can replace 421A40SS?
There are 3 known substitutes for 421A40SS: JM45SC3H40T, TA04C36H40, TA04C36H07. Substitute compatibility should be verified for your specific system.
What is the NSN for 421A40SS?
421A40SS is cataloged in the U.S. Government catalog under NSN 5340-01-215-7709. This indicates validated use in U.S. government and defense supply chains.
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