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120726C — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

120726C: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, center_hole_diameter: 4.595 INCHES MINIMUM AND 4.625 INCHES MAXIMUM IN, cross-sectional_height: 0.163 INCHES MINIMUM AND 0.173 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-641-1245, 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
120726C
NSN: 5331-00-641-1245
FSC: 5331 — O-ring
CAGE: 64104 — DRESSER, LLC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
center_hole_diameter4.595 INCHES MINIMUM AND 4.625 INCHES MAXIMUM IN
cross-sectional_height0.163 INCHES MINIMUM AND 0.173 INCHES MAXIMUM IN
NSN5331-00-641-1245
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 120726C 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: 0.163 INCHES MINIMUM AND 0.173 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 4.595 INCHES MINIMUM AND 4.625 INCHES MAXIMUM IN
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.163 INCHES MINIMUM AND 0.173 INCHES MAXIMUM IN
CENTER HOLE DIAMETER4.595 INCHES MINIMUM AND 4.625 INCHES MAXIMUM IN
MATERIALRUBBER SYNTHETIC
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 3
120726ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1161Reference document
Same NSN cross-reference
Reference document — Secondary reference
4612Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 120726C?
120726C is a O-RING.
What parts can replace 120726C?
There are 3 known substitutes for 120726C: 120726A, 1161, 4612. Substitute compatibility should be verified for your specific system.
What is the NSN for 120726C?
120726C is cataloged in the U.S. Government catalog under NSN 5331-00-641-1245. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.