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Technical Data Sheet
PartsTable / COMPONENT / 918378-1C
918378-1C ✓ 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 STRAP,RETAINING is a the manufacturer industrial component. Key specifications include cushion: NOT INCLUDED, material: STEEL LOCATION NOT OTHERWISE SPECIFIED, mounting_pad: NOT INCLUDED, overall_width: 0.380 INCHES NOMINAL IN, overall_length: 0.620 INCHES NOMINAL IN, style_designator: CURVED ARCH. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-095-1843, 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
918378-1C
NSN: 5340-01-095-1843
FSC: 5340
CAGE: 82577 — RAYTHEON COMPANY DBA RAYTHEON (USA)
SPECIFICATIONS
cushionNOT INCLUDED
materialSTEEL LOCATION NOT OTHERWISE SPECIFIED
mounting_padNOT INCLUDED
overall_width0.380 INCHES NOMINAL IN
overall_length0.620 INCHES NOMINAL IN
style_designatorCURVED ARCH
surface_treatmentCADMIUM AND CHROMATE
material_thickness0.032 INCHES NOMINAL IN
mounting_hole_size0.140 INCHES NOMINAL IN
inside_diameter/arch_length0.166 INCHES NOMINAL IN
distance_between_base_and_inside_of_arch0.110 INCHES NOMINAL IN
center_to_center_distance_between_arch_and_mounting_hole0.335 INCHES NOMINAL IN
NSN5340-01-095-1843
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 918378-1C 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 THICKNESS: 0.032 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM AND CHROMATE
•
STYLE DESIGNATOR: CURVED ARCH
•
MATERIAL: STEEL LOCATION NOT OTHERWISE SPECIFIED
•
CUSHION: NOT INCLUDED
•
CENTER TO CENTER DISTANCE BETWEEN ARCH AND MOUNTING HOLE: 0.335 INCHES NOMINAL IN
•
MOUNTING HOLE SIZE: 0.140 INCHES NOMINAL IN
•
MOUNTING PAD: NOT INCLUDED
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.032 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM AND CHROMATE
STYLE DESIGNATORCURVED ARCH
MATERIALSTEEL LOCATION NOT OTHERWISE SPECIFIED
CUSHIONNOT INCLUDED
CENTER TO CENTER DISTANCE BETWEEN ARCH AND MOUNTING HOLE0.335 INCHES NOMINAL IN
MOUNTING HOLE SIZE0.140 INCHES NOMINAL IN
MOUNTING PADNOT INCLUDED
OVERALL LENGTH0.620 INCHES NOMINAL IN
DISTANCE BETWEEN BASE AND INSIDE OF ARCH0.110 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
94700-94113Interchangeable
interchangeable cross-reference
interchangeable
21375Interchangeable
interchangeable cross-reference
interchangeable
D3765Interchangeable
interchangeable cross-reference
interchangeable
MS35291-76Interchangeable
interchangeable cross-reference
interchangeable
GSN1023909-501Interchangeable
interchangeable cross-reference
interchangeable
618-0005-001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 918378-1C?
918378-1C is a STRAP,RETAINING.
What parts can replace 918378-1C?
There are 9 known substitutes for 918378-1C: 94700-94113, 21375, D3765 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 918378-1C?
918378-1C is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-095-1843. 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