PartsTable
Technical Data Sheet
PartsTable / O-RING / 946.91.27.775
946.91.27.775 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The 946.91.27.775 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-167-5118, 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
946.91.27.775
NSN: 5331-00-167-5118
FSC: 5331 — O-RING
CAGE: S4080 — PILATUS AIRCRAFT LTD (CHE)
SPECIFICATIONS
Part Number946.91.27.775
NSN5331-00-167-5118
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 946.91.27.775 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS7276 ASSN STD SINGLE MATERIAL RESPONSE
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
•
OUTSIDE DIAMETER: 1.797 INCHES MINIMUM AND 1.839 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 1.597 INCHES MINIMUM AND 1.627 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONAMS7276 ASSN STD SINGLE MATERIAL RESPONSE
END ITEM IDENTIFICATIONMULTIPLE LAUNCH ROCKET SYSTEM (MLRS)
ELONGATION PERCENTAGE125 MAXIMUM
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL
MATERIALRUBBER FLUOROCARBON CLASS FPM
OUTSIDE DIAMETER1.797 INCHES MINIMUM AND 1.839 INCHES MAXIMUM IN
CENTER HOLE DIAMETER1.597 INCHES MINIMUM AND 1.627 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
5331PL2228009Interchangeable
interchangeable cross-reference
interchangeable
AS3209-133Interchangeable
interchangeable cross-reference
interchangeable
V3D10423 ITEM 18Interchangeable
interchangeable cross-reference
interchangeable
ARP568-130MILR25897TY1CL1Interchangeable
interchangeable cross-reference
interchangeable
AMS3216Interchangeable
interchangeable cross-reference
interchangeable
AS568-130Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 946.91.27.775?
946.91.27.775 is a 946.91.27.775.
What parts can replace 946.91.27.775?
There are 19 known substitutes for 946.91.27.775: 5331PL2228009, AS3209-133, V3D10423 ITEM 18 and 16 more. Substitute compatibility should be verified for your specific system.
Is 946.91.27.775 still available?
946.91.27.775 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026