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31-4542-1 — TUBE ASSEMBLY,METAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

31-4542-1: TUBE ASSEMBLY,METAL.

The TUBE ASSEMBLY,METAL is a the manufacturer industrial component. Key specifications include material: RUBBER SILICONE CLASS Q OVERALL, hardness_rating: 75.0 SHORE DUROMETER A NOMINAL OVERALL, outside_diameter: 2.250 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 1.750 INCHES NOMINAL IN, cross-sectional_thickness: 0.063 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-105-5797, 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
31-4542-1
NSN: 5330-01-105-5797
NIINs: 011055797, 011431538
FSC: 5330 — Packing and Gasket Materials
CAGE: 72914 — GRIMES AEROSPACE COMPANY (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q OVERALL
hardness_rating75.0 SHORE DUROMETER A NOMINAL OVERALL
outside_diameter2.250 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter1.750 INCHES NOMINAL IN
cross-sectional_thickness0.063 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-01-105-5797
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 31-4542-1 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: 0.063 INCHES NOMINAL IN
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL OVERALL
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 2.250 INCHES NOMINAL IN
•
APERTURE DIAMETER: 1.750 INCHES NOMINAL IN
•
COLOR: GRAY/GREY
•
MATERIAL: RUBBER SILICONE CLASS Q OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.063 INCHES NOMINAL IN
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL OVERALL
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER2.250 INCHES NOMINAL IN
APERTURE DIAMETER1.750 INCHES NOMINAL IN
COLORGRAY/GREY
MATERIALRUBBER SILICONE CLASS Q OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 31-4542-1?
31-4542-1 is a TUBE ASSEMBLY,METAL.
What is the NSN for 31-4542-1?
31-4542-1 is cataloged in the U.S. Government catalog under NSN 5330-01-105-5797. 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.