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MS29561-250 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MS29561-250: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, center_hole_diameter: 4.969 INCHES MINIMUM AND 4.999 INCHES MAXIMUM IN, elongation_percentage: 250 MAXIMUM, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-950-9715, 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
MS29561-250
NSN: 5331-00-950-9715
FSC: 5331 — O-ring
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
hardness_rating70.0 SHORE DUROMETER A NOMINAL
center_hole_diameter4.969 INCHES MINIMUM AND 4.999 INCHES MAXIMUM IN
elongation_percentage250 MAXIMUM
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN5331-00-950-9715
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS29561-250 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 0.143 INCHES MAXIMUM IN
•
HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
•
ELONGATION PERCENTAGE: 250 MAXIMUM
•
CENTER HOLE DIAMETER: 4.969 INCHES MINIMUM AND 4.999 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
HARDNESS RATING70.0 SHORE DUROMETER A NOMINAL
ELONGATION PERCENTAGE250 MAXIMUM
CENTER HOLE DIAMETER4.969 INCHES MINIMUM AND 4.999 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
SUBSTITUTES & CROSS-REFERENCES 4
47-071 2-250Reference document
Same NSN cross-reference
Reference document — Secondary reference
2-250 47-071Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS29561Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
2-250 N4771-70Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS29561-250?
MS29561-250 is a O-RING.
What parts can replace MS29561-250?
There are 4 known substitutes for MS29561-250: 47-071 2-250, 2-250 47-071, SAE-AS29561 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS29561-250?
MS29561-250 is cataloged in the U.S. Government catalog under NSN 5331-00-950-9715. This indicates validated use in U.S. government and defense supply chains.
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