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HF238 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

HF238: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: CORK AND RUBBER POLYSULFIDE CLASS T OVERALL, outside_diameter: 1.688 INCHES NOMINAL IN, lubrication_method: IMPREGNATED, cross-sectional_thickness: 0.312 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION, material_document_and_classification: MIL-G-12803 F213000-2R MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-447-9165, 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
HF238
NSN: 5330-00-447-9165
FSC: 5330 — Packing and Gasket Materials
CAGE: 66289 — WISCONSIN MOTORS, LLC (USA)
SPECIFICATIONS
materialCORK AND RUBBER POLYSULFIDE CLASS T OVERALL
outside_diameter1.688 INCHES NOMINAL IN
lubrication_methodIMPREGNATED
cross-sectional_thickness0.312 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-G-12803 F213000-2R MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-447-9165
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: HF238 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 THICKNESS: 0.312 INCHES NOMINAL IN
•
LUBRICATION METHOD: IMPREGNATED
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-12803 F213000-2R MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 1.688 INCHES NOMINAL IN
•
MATERIAL: CORK AND RUBBER POLYSULFIDE CLASS T OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.312 INCHES NOMINAL IN
LUBRICATION METHODIMPREGNATED
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-12803 F213000-2R MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER1.688 INCHES NOMINAL IN
MATERIALCORK AND RUBBER POLYSULFIDE CLASS T OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
169231Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HF238?
HF238 is a GASKET.
What parts can replace HF238?
There is 1 known substitute for HF238: 169231. Substitute compatibility should be verified for your specific system.
What is the NSN for HF238?
HF238 is cataloged in the U.S. Government catalog under NSN 5330-00-447-9165. 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.