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PartsTable / COMPONENT / 056004 ITEM 4
056004 ITEM 4 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC AND PLASTIC OVERALL, outside_diameter: 12.375 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 10.750 INCHES NOMINAL IN, cross-sectional_thickness: 0.125 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-137-7275, 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
056004 ITEM 4
NSN: 5330-01-137-7275
FSC: 5330
CAGE: 48422 — WILLIAM POWELL COMPANY, THE DBA POWELL VALVE DIV THE STARFLO CORPORATION (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC AND PLASTIC OVERALL
outside_diameter12.375 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter10.750 INCHES NOMINAL IN
cross-sectional_thickness0.125 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-01-137-7275
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 056004 ITEM 4 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
•
OUTSIDE DIAMETER: 12.375 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL: RUBBER SYNTHETIC AND PLASTIC OVERALL
•
APERTURE DIAMETER: 10.750 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.125 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER12.375 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
MATERIALRUBBER SYNTHETIC AND PLASTIC OVERALL
APERTURE DIAMETER10.750 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
AN115-46Interchangeable
interchangeable cross-reference
interchangeable
15385Interchangeable
interchangeable cross-reference
interchangeable
9N7120Interchangeable
interchangeable cross-reference
interchangeable
799155Interchangeable
interchangeable cross-reference
interchangeable
PC105462Interchangeable
interchangeable cross-reference
interchangeable
H8575Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 056004 ITEM 4?
056004 ITEM 4 is a GASKET.
What parts can replace 056004 ITEM 4?
There are 13 known substitutes for 056004 ITEM 4: AN115-46, 15385, 9N7120 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 056004 ITEM 4?
056004 ITEM 4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-137-7275. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026