PartsTable
Technical Data Sheet
PartsTable / O-RING / 79404
79404 ✓ 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 ROLLER ASSEMBLY,DROOP STOP is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC SEALING ELEMENT, case_style: RECESSED, seal_width: 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN, temp_rating: -40.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF, surface_treatment: PHOSPHATE ZINC CASE, housing_bore_diameter: 1.999 INCHES MINIMUM AND 2.001 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-238-9522, 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
79404
NSN: 5331-00-238-9522
FSC: 5331 — O-RING
CAGE: 61858 — RTX CORP (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT
case_styleRECESSED
seal_width0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
temp_rating-40.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
surface_treatmentPHOSPHATE ZINC CASE
housing_bore_diameter1.999 INCHES MINIMUM AND 2.001 INCHES MAXIMUM IN
sealing_element_styleANGULAR
accommodated_shaft_diameter0.871 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN
NSN5331-00-238-9522
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 79404 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: RUBBER SYNTHETIC
•
CROSS-SECTIONAL HEIGHT: 0.070 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC
CROSS-SECTIONAL HEIGHT0.070 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
115544Interchangeable
interchangeable cross-reference
interchangeable
138530Interchangeable
interchangeable cross-reference
interchangeable
MS35333-38Interchangeable
interchangeable cross-reference
interchangeable
369A1231Interchangeable
interchangeable cross-reference
interchangeable
JA14TA28-122-E9534Interchangeable
interchangeable cross-reference
interchangeable
6AX10Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 79404?
79404 is a ROLLER ASSEMBLY,DROOP STOP.
What parts can replace 79404?
There are 7 known substitutes for 79404: 115544, 138530, MS35333-38 and 4 more. Substitute compatibility should be verified for your specific system.
Is 79404 still available?
79404 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