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2166690-1 — STRAP,RETAINING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2166690-1: STRAP,RETAINING.

The STRAP,RETAINING is a the manufacturer industrial component. Key specifications include cushion: NOT INCLUDED, material: STEEL COMP 1010 AND STEEL COMP 1020 LOCATION NOT OTHERWISE SPECIFIED, mounting_pad: NOT INCLUDED, overall_width: 0.250 INCHES NOMINAL IN, overall_length: 0.531 INCHES NOMINAL IN, special_features: 0.625 IN. RADIUS LONGITUDINAL ARC OF BASE IN.

This part is cataloged in the U.S. Government catalog under NSN 5340-00-842-7643, 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
2166690-1
NSN: 5340-00-842-7643
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
cushionNOT INCLUDED
materialSTEEL COMP 1010 AND STEEL COMP 1020 LOCATION NOT OTHERWISE SPECIFIED
mounting_padNOT INCLUDED
overall_width0.250 INCHES NOMINAL IN
overall_length0.531 INCHES NOMINAL IN
special_features0.625 IN. RADIUS LONGITUDINAL ARC OF BASE IN
style_designatorDOUBLE ARCHES
surface_treatmentCADMIUM
material_thickness0.024 INCHES NOMINAL IN
mounting_hole_size0.125 INCHES NOMINAL IN
inside_diameter/arch_length0.094 INCHES NOMINAL IN
distance_between_base_and_inside_of_arch0.047 INCHES NOMINAL IN
NSN5340-00-842-7643
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2166690-1 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: 0.125 INCHES NOMINAL IN
•
MOUNTING PAD: NOT INCLUDED
•
STYLE DESIGNATOR: DOUBLE ARCHES
•
MATERIAL THICKNESS: 0.024 INCHES NOMINAL IN
•
CUSHION: NOT INCLUDED
•
DISTANCE BETWEEN BASE AND INSIDE OF ARCH: 0.047 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MOUNTING HOLE SIZE0.125 INCHES NOMINAL IN
MOUNTING PADNOT INCLUDED
STYLE DESIGNATORDOUBLE ARCHES
OVERALL LENGTH0.531 INCHES NOMINAL IN
OVERALL WIDTH0.250 INCHES NOMINAL IN
MATERIAL THICKNESS0.024 INCHES NOMINAL IN
CUSHIONNOT INCLUDED
DISTANCE BETWEEN BASE AND INSIDE OF ARCH0.047 INCHES NOMINAL IN
DISTANCE BETWEEN BASE AND END OF ARCH PROTRUDING PORTION0.047 INCHES NOMINAL IN
SPECIAL FEATURES0.625 IN. RADIUS LONGITUDINAL ARC OF BASE IN
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 1
5340008427643Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 2166690-1?
2166690-1 is a STRAP,RETAINING.
What parts can replace 2166690-1?
There is 1 known substitute for 2166690-1: 5340008427643. Substitute compatibility should be verified for your specific system.
What is the NSN for 2166690-1?
2166690-1 is cataloged in the U.S. Government catalog under NSN 5340-00-842-7643. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.