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1387B323 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1387B323: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR, special_features: CROSS-SECTIONAL SHAPE STYLE:116 IRREGULAR SHAPE FROM OLD FIIG A03200, peripheral_diameter: 4.895 INCHES NOMINAL IN, center_hole_diameter: 4.445 INCHES MINIMUM AND 4.505 INCHES MAXIMUM IN, cross-sectional_height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-134-1044, 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
1387B323
NSN: 5331-00-134-1044
FSC: 5331 — O-ring
CAGE: 57931 — AERO ENERGY SYSTEMS INC (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR
special_featuresCROSS-SECTIONAL SHAPE STYLE:116 IRREGULAR SHAPE FROM OLD FIIG A03200
peripheral_diameter4.895 INCHES NOMINAL IN
center_hole_diameter4.445 INCHES MINIMUM AND 4.505 INCHES MAXIMUM IN
cross-sectional_height0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
NSN5331-00-134-1044
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1387B323 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: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
•
PERIPHERAL DIAMETER: 4.895 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 4.445 INCHES MINIMUM AND 4.505 INCHES MAXIMUM IN
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
PERIPHERAL DIAMETER4.895 INCHES NOMINAL IN
SPECIAL FEATURESCROSS-SECTIONAL SHAPE STYLE:116 IRREGULAR SHAPE FROM OLD FIIG A03200
CENTER HOLE DIAMETER4.445 INCHES MINIMUM AND 4.505 INCHES MAXIMUM IN
MATERIALRUBBER CHLOROPRENE CLASS CR
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 4
SAE-AMS7276Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
AS568-349AMS3209Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS568-349Reference document
Same NSN cross-reference
Reference document — Secondary reference
AMS3209Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 1387B323?
1387B323 is a O-RING.
What parts can replace 1387B323?
There are 4 known substitutes for 1387B323: SAE-AMS7276, AS568-349AMS3209, AS568-349 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1387B323?
1387B323 is cataloged in the U.S. Government catalog under NSN 5331-00-134-1044. This indicates validated use in U.S. government and defense supply chains.
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