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1375-245A — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1375-245A: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR, center_hole_diameter: 4.320 INCHES MINIMUM AND 4.350 INCHES MAXIMUM IN, cross-sectional_height: 0.146 INCHES MINIMUM AND 0.154 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-079-8149, 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
1375-245A
NSN: 5331-01-079-8149
FSC: 5331 — O-ring
CAGE: 77308 — PARCO, LLC (USA)
SPECIFICATIONS
materialRUBBER ISOBUTYLENE-ISOPRENE CLASS IIR
center_hole_diameter4.320 INCHES MINIMUM AND 4.350 INCHES MAXIMUM IN
cross-sectional_height0.146 INCHES MINIMUM AND 0.154 INCHES MAXIMUM IN
NSN5331-01-079-8149
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1375-245A 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: 0.146 INCHES MINIMUM AND 0.154 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 4.320 INCHES MINIMUM AND 4.350 INCHES MAXIMUM IN
•
MATERIAL: RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.146 INCHES MINIMUM AND 0.154 INCHES MAXIMUM IN
CENTER HOLE DIAMETER4.320 INCHES MINIMUM AND 4.350 INCHES MAXIMUM IN
MATERIALRUBBER ISOBUTYLENE-ISOPRENE CLASS IIR
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES 1
214-010-180-1Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1375-245A?
1375-245A is a O-RING.
What parts can replace 1375-245A?
There is 1 known substitute for 1375-245A: 214-010-180-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 1375-245A?
1375-245A is cataloged in the U.S. Government catalog under NSN 5331-01-079-8149. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
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.