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474540 — SEAL RING,METAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

474540: SEAL RING,METAL.

The SEAL RING,METAL is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE NITRILE OVERALL, hole_diameter: 0.188 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 2.250 INCHES NOMINAL IN, aperture_width: 1.750 INCHES NOMINAL IN, overall_length: 4.500 INCHES NOMINAL IN, aperture_length: 3.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-914-0758, 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
474540
NSN: 5330-00-914-0758
NIINs: 009140758, 014513379
FSC: 5330 — Packing and Gasket Materials
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE NITRILE OVERALL
hole_diameter0.188 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width2.250 INCHES NOMINAL IN
aperture_width1.750 INCHES NOMINAL IN
overall_length4.500 INCHES NOMINAL IN
aperture_length3.500 INCHES NOMINAL IN
hardness_rating40.0 SHORE DUROMETER A MINIMUM AND 60.0 SHORE DUROMETER A MAXIMUM OVERALL
style_designatorNON-CIRCULAR
bolt_hole_quantity2
cross-sectional_thickness0.125 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-914-0758
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 474540 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
•
FSC APPLICATION DATA: COMPRESSOR DRIVE,TURBINE ROTOR,ACFT ENGINE
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MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5621 ASSN STD 1ST MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: PLAIN RECTANGULAR, STRAIGHT FACE
•
OUTSIDE DIAMETER: 1.896 INCHES NOMINAL IN
•
JOINT STYLE: STEP JOINT
•
RADIAL WALL THICKNESS: 0.0750 INCHES MINIMUM AND 0.0790 INCHES MAXIMUM IN
•
RING STYLE: EXPANDING CONCENTRIC
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATACOMPRESSOR DRIVE,TURBINE ROTOR,ACFT ENGINE
OVERALL WIDTH0.0930 INCHES MINIMUM AND 0.0940 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5621 ASSN STD 1ST MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLEPLAIN RECTANGULAR, STRAIGHT FACE
OUTSIDE DIAMETER1.896 INCHES NOMINAL IN
JOINT STYLESTEP JOINT
RADIAL WALL THICKNESS0.0750 INCHES MINIMUM AND 0.0790 INCHES MAXIMUM IN
RING STYLEEXPANDING CONCENTRIC
MATERIALSTEEL OVERALL
METALLIC HARDNESS RATING35.0 MINIMUM ROCKWELL C AND 40.0 MAXIMUM ROCKWELL C
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 474540?
474540 is a SEAL RING,METAL.
What is the NSN for 474540?
474540 is cataloged in the U.S. Government catalog under NSN 5330-00-914-0758. 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.