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MS29561-154 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MS29561-154: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, outside_diameter: 3.943 INCHES NOMINAL IN, center_hole_diameter: 3.722 INCHES MINIMUM AND 3.752 INCHES MAXIMUM IN, elongation_percentage: 250 MAXIMUM, cross-sectional_height: 0.109 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-605-8267, 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
MS29561-154
NSN: 5331-00-605-8267
FSC: 5331 — O-ring
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
hardness_rating70.0 SHORE DUROMETER A NOMINAL
outside_diameter3.943 INCHES NOMINAL IN
center_hole_diameter3.722 INCHES MINIMUM AND 3.752 INCHES MAXIMUM IN
elongation_percentage250 MAXIMUM
cross-sectional_height0.109 INCHES NOMINAL IN
NSN5331-00-605-8267
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS29561-154 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: 0.109 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 3.943 INCHES NOMINAL IN
•
HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
•
ELONGATION PERCENTAGE: 250 MAXIMUM
•
CENTER HOLE DIAMETER: 3.722 INCHES MINIMUM AND 3.752 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.109 INCHES NOMINAL IN
OUTSIDE DIAMETER3.943 INCHES NOMINAL IN
HARDNESS RATING70.0 SHORE DUROMETER A NOMINAL
ELONGATION PERCENTAGE250 MAXIMUM
CENTER HOLE DIAMETER3.722 INCHES MINIMUM AND 3.752 INCHES MAXIMUM IN
MATERIALRUBBER FLUOROCARBON CLASS FPM
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 2
SAE-AS29561Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
2-154 47-071Reference 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 MS29561-154?
MS29561-154 is a O-RING.
What parts can replace MS29561-154?
There are 2 known substitutes for MS29561-154: SAE-AS29561, 2-154 47-071. Substitute compatibility should be verified for your specific system.
What is the NSN for MS29561-154?
MS29561-154 is cataloged in the U.S. Government catalog under NSN 5331-00-605-8267. This indicates validated use in U.S. government and defense supply chains.
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