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302754 ✓ 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: STEEL COMP 303 OVERALL, surface_finish: 16.0 MICROINCHES OUTSIDE DIAMETER, first_end_style: SQUARE, surface_treatment: PASSIVATE OVERALL, pin_overall_length: 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN, pin_overall_diameter: 0.0311 INCHES MINIMUM AND 0.0313 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-058-4669, 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
302754
NSN: 5330-01-058-4669
FSC: 5330
CAGE: 22830 — SYMETRICS INDUSTRIES, LLC DBA EXTANT AEROSPACE DIV SYMETRICS INDUSTRIES DBA EXTANT AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
surface_finish16.0 MICROINCHES OUTSIDE DIAMETER
first_end_styleSQUARE
surface_treatmentPASSIVATE OVERALL
pin_overall_length0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN
pin_overall_diameter0.0311 INCHES MINIMUM AND 0.0313 INCHES MAXIMUM IN
material_document_and_classificationASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
second_end_relationship_with_first_endIDENTICAL
surface_treatment_document_and_classificationASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN5330-01-058-4669
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 302754 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
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: 4.100 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
CROSS-SECTIONAL THICKNESS: 0.090 INCHES NOMINAL IN
•
HARDNESS RATING: 50.0 SHORE DUROMETER A MAXIMUM OVERALL
•
APERTURE WIDTH: 6.880 INCHES NOMINAL IN
•
OUTSIDE CORNER RADIUS: 0.190 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH: 3.690 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
APERTURE LENGTH: 11.620 INCHES NOMINAL IN
•
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH: 0.340 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH4.100 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL THICKNESS0.090 INCHES NOMINAL IN
HARDNESS RATING50.0 SHORE DUROMETER A MAXIMUM OVERALL
APERTURE WIDTH6.880 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS0.190 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH3.690 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
APERTURE LENGTH11.620 INCHES NOMINAL IN
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH0.340 INCHES NOMINAL IN
STYLE DESIGNATORNON-CIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
30275-4Interchangeable
interchangeable cross-reference
interchangeable
MIL-P-21143/2Interchangeable
interchangeable cross-reference
interchangeable
M21143/2-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 302754?
302754 is a GASKET.
What parts can replace 302754?
There are 3 known substitutes for 302754: 30275-4, MIL-P-21143/2, M21143/2-4. Substitute compatibility should be verified for your specific system.
What is the NSN for 302754?
302754 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-058-4669. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026