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553GB187 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

553GB187: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hardness_rating: 55.0 ROCKWELL B MAXIMUM OVERALL, outside_diameter: 5.455 INCHES MINIMUM AND 5.465 INCHES MAXIMUM IN, style_designator: CIRCULAR, aperture_diameter: 5.106 INCHES MINIMUM AND 5.112 INCHES MAXIMUM IN, lubrication_method: COATED. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-552-4035, 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
553GB187
NSN: 5330-01-552-4035
FSC: 5330 — Packing and Gasket Materials
CAGE: 89619 — MACK TRUCKS, INC. DBA MACUNGIE OPERATIONS DIV LEHIGH VALLEY OPERATIONS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hardness_rating55.0 ROCKWELL B MAXIMUM OVERALL
outside_diameter5.455 INCHES MINIMUM AND 5.465 INCHES MAXIMUM IN
style_designatorCIRCULAR
aperture_diameter5.106 INCHES MINIMUM AND 5.112 INCHES MAXIMUM IN
lubrication_methodCOATED
cross-sectional_thickness0.056 INCHES MAXIMUM IN
cross-sectional_shape_styleRECTANGULAR METAL
material_document_and_classificationASTM A-620, CLASS 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-552-4035
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 553GB187 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: 0.056 INCHES MAXIMUM IN
•
LUBRICATION METHOD: COATED
•
HARDNESS RATING: 55.0 ROCKWELL B MAXIMUM OVERALL
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A-620, CLASS 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR METAL
•
OUTSIDE DIAMETER: 5.455 INCHES MINIMUM AND 5.465 INCHES MAXIMUM IN
•
APERTURE DIAMETER: 5.106 INCHES MINIMUM AND 5.112 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.056 INCHES MAXIMUM IN
LUBRICATION METHODCOATED
HARDNESS RATING55.0 ROCKWELL B MAXIMUM OVERALL
STYLE DESIGNATORCIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A-620, CLASS 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR METAL
OUTSIDE DIAMETER5.455 INCHES MINIMUM AND 5.465 INCHES MAXIMUM IN
APERTURE DIAMETER5.106 INCHES MINIMUM AND 5.112 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 553GB187?
553GB187 is a GASKET.
What is the NSN for 553GB187?
553GB187 is cataloged in the U.S. Government catalog under NSN 5330-01-552-4035. This indicates validated use in U.S. government and defense supply chains.
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