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MS9771-08 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MS9771-08: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYCHLOROTRIFLUOROETHYLENE, center_hole_diameter: 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN, cross-sectional_height: 0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-508-6122, 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
MS9771-08
NSN: 5331-00-508-6122
FSC: 5331 — O-ring
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialPLASTIC POLYCHLOROTRIFLUOROETHYLENE
center_hole_diameter0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN
cross-sectional_height0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
NSN5331-00-508-6122
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS9771-08 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: 0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN
•
MATERIAL: PLASTIC POLYCHLOROTRIFLUOROETHYLENE
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN
MATERIALPLASTIC POLYCHLOROTRIFLUOROETHYLENE
SUBSTITUTES & CROSS-REFERENCES 1
SAE-AS9771Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 MS9771-08?
MS9771-08 is a O-RING.
What parts can replace MS9771-08?
There is 1 known substitute for MS9771-08: SAE-AS9771. Substitute compatibility should be verified for your specific system.
What is the NSN for MS9771-08?
MS9771-08 is cataloged in the U.S. Government catalog under NSN 5331-00-508-6122. This indicates validated use in U.S. government and defense supply chains.
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