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A356A321-101 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A356A321-101: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER SILICONE CLASS Q OR RUBBER FLUOROSILICONE CLASS FQ, center_hole_diameter: 1.594 INCHES MINIMUM AND 1.624 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 1.139 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-317-5226, 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
A356A321-101
NSN: 5331-01-317-5226
FSC: 5331 — O-ring
CAGE: 88818 — KEARFOTT CORPORATION DIV GUIDANCE AND NAVIGATION DIVISION (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q OR RUBBER FLUOROSILICONE CLASS FQ
center_hole_diameter1.594 INCHES MINIMUM AND 1.624 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 1.139 INCHES MAXIMUM IN
NSN5331-01-317-5226
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A356A321-101 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
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 1.139 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 1.594 INCHES MINIMUM AND 1.624 INCHES MAXIMUM IN
•
MATERIAL: RUBBER SILICONE CLASS Q OR RUBBER FLUOROSILICONE CLASS FQ
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 1.139 INCHES MAXIMUM IN
CENTER HOLE DIAMETER1.594 INCHES MINIMUM AND 1.624 INCHES MAXIMUM IN
MATERIALRUBBER SILICONE CLASS Q OR RUBBER FLUOROSILICONE CLASS FQ
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES 1
223-11507Reference 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 A356A321-101?
A356A321-101 is a O-RING.
What parts can replace A356A321-101?
There is 1 known substitute for A356A321-101: 223-11507. Substitute compatibility should be verified for your specific system.
What is the NSN for A356A321-101?
A356A321-101 is cataloged in the U.S. Government catalog under NSN 5331-01-317-5226. This indicates validated use in U.S. government and defense supply chains.
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