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243-6758311-MSAS-A75 — 243-6758311-MSAS-A75

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

243-6758311-MSAS-A75: 243-6758311-MSAS-A75.

The 243-6758311-MSAS-A75 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-455-6172, 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
243-6758311-MSAS-A75
NSN: 5331-01-455-6172
FSC: 5331 — O-ring
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
Part Number243-6758311-MSAS-A75
NSN5331-01-455-6172
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 243-6758311-MSAS-A75 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: 0.275 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-21610, TY 1 MIL SPEC SINGLE MATERIAL RESPONSE
•
CENTER HOLE DIAMETER: 32.375 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.275 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-21610, TY 1 MIL SPEC SINGLE MATERIAL RESPONSE
CENTER HOLE DIAMETER32.375 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 243-6758311-MSAS-A75?
243-6758311-MSAS-A75 is a 243-6758311-MSAS-A75.
What is the NSN for 243-6758311-MSAS-A75?
243-6758311-MSAS-A75 is cataloged in the U.S. Government catalog under NSN 5331-01-455-6172. This indicates validated use in U.S. government and defense supply chains.
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U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.