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MS9388-264 — PACKING,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MS9388-264: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM OVERALL, temp_rating: -5.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF, hardness_rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL, peripheral_diameter: 7.762 INCHES NOMINAL IN, center_hole_diameter: 7.454 INCHES MINIMUM AND 7.514 INCHES MAXIMUM IN, elongation_percentage: 125 MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-167-5146, 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
MS9388-264
NSN: 5331-00-167-5146
NIINs: 001675146, 011994403
FSC: 5331 — O-ring
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM OVERALL
temp_rating-5.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
hardness_rating70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL
peripheral_diameter7.762 INCHES NOMINAL IN
center_hole_diameter7.454 INCHES MINIMUM AND 7.514 INCHES MAXIMUM IN
elongation_percentage125 MAXIMUM
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
cross-sectional_shape_styleO-RING
cross_section_outside_diameter0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
material_document_and_classificationAMS7276 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5331-00-167-5146
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS9388-264 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
•
OUTSIDE DIAMETER: 7.709 INCHES MINIMUM AND 7.815 INCHES MAXIMUM IN
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
CENTER HOLE DIAMETER: 7.439 INCHES MINIMUM AND 7.529 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
OUTSIDE DIAMETER7.709 INCHES MINIMUM AND 7.815 INCHES MAXIMUM IN
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL
ELONGATION PERCENTAGE125 MAXIMUM
CENTER HOLE DIAMETER7.439 INCHES MINIMUM AND 7.529 INCHES MAXIMUM IN
MATERIALRUBBER FLUOROCARBON CLASS FPM
SUBSTITUTES & CROSS-REFERENCES 9
2-264V1164-75Reference document
Same NSN cross-reference
Reference document — Secondary reference
264-19357Reference document
Same NSN cross-reference
Reference document — Secondary reference
2-264V884-75Reference document
Same NSN cross-reference
Reference document — Secondary reference
2-264V1226-75Reference document
Same NSN cross-reference
Reference document — Secondary reference
5331PL1682994Reference document
Same NSN cross-reference
Reference document — Informative reference only
623062Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS9388-264?
MS9388-264 is a PACKING,PREFORMED.
What parts can replace MS9388-264?
There are 9 known substitutes for MS9388-264: 2-264V1164-75, 264-19357, 2-264V884-75 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS9388-264?
MS9388-264 is cataloged in the U.S. Government catalog under NSN 5331-00-167-5146. This indicates validated use in U.S. government and defense supply chains.
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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.