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Technical Data Sheet
G104 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The G104 is a the manufacturer industrial component. Key specifications include cushion: NOT INCLUDED, material: RUBBER SYNTHETIC, design_type: SINGLE CENTRALLY LOCATED HOLE AND SPLIT, mounting_pad: NOT INCLUDED, body_diameter: 0.875 INCHES NOMINAL IN, overall_width: 0.375 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-170-4855, 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
MRO MRO_GENERAL G104
NSN: 5340-00-170-4855
FSC: 5340
CAGE: 21340 — ITT TELECOM PRODUCTS CORP NETWORK SYSTEMS DIV (USA)
SPECIFICATIONS
cushionNOT INCLUDED
materialRUBBER SYNTHETIC
design_typeSINGLE CENTRALLY LOCATED HOLE AND SPLIT
mounting_padNOT INCLUDED
arch_quantity2
body_diameter0.875 INCHES NOMINAL IN
overall_width0.375 INCHES NOMINAL IN
overall_length1.312 INCHES NOMINAL IN
special_featuresNIOSH APPROVAL NO. TC-23C-163; SOLE SOURCE REQUIRED BY STATUTE 6.302; FOR ALL HSC FACEPIECES
style_designatorROUND
surface_treatmentPAINT
material_thickness0.0538 INCHES NOMINAL IN
NSN5340-00-170-4855
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: G104 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
INSIDE DIAMETER/ARCH LENGTH: 0.313 INCHES NOMINAL IN
DISTANCE BETWEEN MOUNTING HOLE CENTERS: 0.750 INCHES NOMINAL IN
MOUNTING HOLE SIZE: 0.120 INCHES NOMINAL IN
CUSHION: NOT INCLUDED
MATERIAL THICKNESS: 0.0538 INCHES NOMINAL IN
SURFACE TREATMENT: PAINT
MATERIAL: STEEL LOCATION NOT OTHERWISE SPECIFIED
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER/ARCH LENGTH0.313 INCHES NOMINAL IN
DISTANCE BETWEEN MOUNTING HOLE CENTERS0.750 INCHES NOMINAL IN
MOUNTING HOLE SIZE0.120 INCHES NOMINAL IN
CUSHIONNOT INCLUDED
MATERIAL THICKNESS0.0538 INCHES NOMINAL IN
SURFACE TREATMENTPAINT
MATERIALSTEEL LOCATION NOT OTHERWISE SPECIFIED
OVERALL WIDTH0.375 INCHES NOMINAL IN
OVERALL LENGTH1.875 INCHES NOMINAL IN
ARCH QUANTITY2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
G104Upgraded Successor
successor cross-reference
successor
40-387Interchangeable
interchangeable cross-reference
interchangeable
50-300010-115Interchangeable
interchangeable cross-reference
interchangeable
G104-00Interchangeable
interchangeable cross-reference
interchangeable
68B418000-275Interchangeable
interchangeable cross-reference
interchangeable
68B418000-227Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is G104?
G104 is a G104. It is classified as a MRO (MRO_GENERAL).
What parts can replace G104?
There are 20 known substitutes for G104: G104, 40-387, 50-300010-115 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for G104?
G104 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-170-4855. This indicates validated use in U.S. government and defense supply chains.
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