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1001438 — SEAL,PLAIN

✓ Government record, cited
3M · ORING SEAL
PRODUCT OVERVIEW

1001438: SEAL,PLAIN.

The SEAL,PLAIN is a 3M industrial component. Key specifications include material: STEEL INTERNALLY MOLDED-IN REINFORCEMENT, seal_width: 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN, construction: TWO-PIECE, housing_bore_diameter: 1.445 INCHES NOMINAL IN, accommodated_shaft_diameter: 1.000 INCHES NOMINAL IN, cross-sectional_shape_style: DUAL LIP. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-338-5078, 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
1001438
NSN: 5330-00-338-5078
NIINs: 003385078, 013135711
FSC: 5330 — Packing and Gasket Materials
CAGE: 71724 — JOHN CRANE, INC (USA)
SPECIFICATIONS
materialSTEEL INTERNALLY MOLDED-IN REINFORCEMENT
seal_width0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
constructionTWO-PIECE
housing_bore_diameter1.445 INCHES NOMINAL IN
accommodated_shaft_diameter1.000 INCHES NOMINAL IN
cross-sectional_shape_styleDUAL LIP
NSN5330-00-338-5078
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1001438 MFR: 3M ⚠ 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
•
SEAL WIDTH: 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
HOUSING BORE DIAMETER: 1.445 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: DUAL LIP
•
ACCOMMODATED SHAFT DIAMETER: 1.000 INCHES NOMINAL IN
•
MATERIAL: STEEL INTERNALLY MOLDED-IN REINFORCEMENT
•
CONSTRUCTION: TWO-PIECE
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
HOUSING BORE DIAMETER1.445 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEDUAL LIP
ACCOMMODATED SHAFT DIAMETER1.000 INCHES NOMINAL IN
MATERIALSTEEL INTERNALLY MOLDED-IN REINFORCEMENT
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
CONSTRUCTIONTWO-PIECE
SUBSTITUTES & CROSS-REFERENCES 1
23355Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1001438?
1001438 is a SEAL,PLAIN manufactured by 3M.
What parts can replace 1001438?
There is 1 known substitute for 1001438: 23355. Substitute compatibility should be verified for your specific system.
What is the NSN for 1001438?
1001438 is cataloged in the U.S. Government catalog under NSN 5330-00-338-5078. This indicates validated use in U.S. government and defense supply chains.
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