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403-9055 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

403-9055: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, hole_diameter: 0.195 INCHES MINIMUM AND 0.226 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 5.190 INCHES MINIMUM AND 5.230 INCHES MAXIMUM IN, aperture_width: 4.250 INCHES MINIMUM AND 4.270 INCHES MAXIMUM IN, overall_length: 5.700 INCHES MINIMUM AND 5.740 INCHES MAXIMUM IN, aperture_length: 4.760 INCHES MINIMUM AND 4.780 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-492-0588, 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
403-9055
NSN: 5340-00-492-0588
NIINs: 004920588, 010132408
FSC: 5340 — Hardware, Commercial
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
hole_diameter0.195 INCHES MINIMUM AND 0.226 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
overall_width5.190 INCHES MINIMUM AND 5.230 INCHES MAXIMUM IN
aperture_width4.250 INCHES MINIMUM AND 4.270 INCHES MAXIMUM IN
overall_length5.700 INCHES MINIMUM AND 5.740 INCHES MAXIMUM IN
aperture_length4.760 INCHES MINIMUM AND 4.780 INCHES MAXIMUM IN
style_designatorNON-CIRCULAR
bolt_hole_quantity10
inside_corner_radius0.335 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN
outside_corner_radius0.230 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
cross-sectional_thickness0.055 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5340-00-492-0588
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 403-9055 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
•
WIDTH ACROSS FLATS: 0.250 INCHES NOMINAL IN
•
LENGTH: 0.625 INCHES NOMINAL IN
•
STYLE DESIGNATOR: INTERNALLY THREADED FULL LENGTH
•
CROSS-SECTIONAL SHAPE: HEXAGON
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
MATERIAL: COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.250 INCHES NOMINAL IN
LENGTH0.625 INCHES NOMINAL IN
STYLE DESIGNATORINTERNALLY THREADED FULL LENGTH
CROSS-SECTIONAL SHAPEHEXAGON
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
MATERIALCOPPER ALLOY OVERALL
SUBSTITUTES & CROSS-REFERENCES 5
840605Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
KAD10-029Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
1451DSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
8217B0632-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
8217B0632&3BReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 403-9055?
403-9055 is a GASKET.
What parts can replace 403-9055?
There are 5 known substitutes for 403-9055: 840605, KAD10-029, 1451D and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 403-9055?
403-9055 is cataloged in the U.S. Government catalog under NSN 5340-00-492-0588. This indicates validated use in U.S. government and defense supply chains.
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