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Technical Data Sheet
PartsTable / O-RING / AV172-731 ITEM 3
AV172-731 ITEM 3 ✓ 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 O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, outside_diameter: 1.262 INCHES NOMINAL IN, center_hole_diameter: 0.974 INCHES MINIMUM AND 0.994 INCHES MAXIMUM IN, cross-sectional_height: 0.125 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-676-9239, 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
AV172-731 ITEM 3
NSN: 5331-00-676-9239
FSC: 5331 — O-RING
CAGE: 04845 — AUTOMATIC SWITCH COMPANY DBA ASCO (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
outside_diameter1.262 INCHES NOMINAL IN
center_hole_diameter0.974 INCHES MINIMUM AND 0.994 INCHES MAXIMUM IN
cross-sectional_height0.125 INCHES NOMINAL IN
NSN5331-00-676-9239
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AV172-731 ITEM 3 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
•
CENTER HOLE DIAMETER: 0.974 INCHES MINIMUM AND 0.994 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.125 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.262 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER0.974 INCHES MINIMUM AND 0.994 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.125 INCHES NOMINAL IN
OUTSIDE DIAMETER1.262 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
24628Interchangeable
interchangeable cross-reference
interchangeable
AS568B-214Interchangeable
interchangeable cross-reference
interchangeable
PRP90219H22480Interchangeable
interchangeable cross-reference
interchangeable
904-C-69Interchangeable
interchangeable cross-reference
interchangeable
2AB5Interchangeable
interchangeable cross-reference
interchangeable
7-57-010Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AV172-731 ITEM 3?
AV172-731 ITEM 3 is a O-RING.
What parts can replace AV172-731 ITEM 3?
There are 22 known substitutes for AV172-731 ITEM 3: 24628, AS568B-214, PRP90219H22480 and 19 more. Substitute compatibility should be verified for your specific system.
Is AV172-731 ITEM 3 still available?
AV172-731 ITEM 3 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