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Technical Data Sheet
59-49A ✓ 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 ELECTRON TUBE is a the manufacturer industrial component. Key specifications include material: ASBESTOS OVERALL, tube_type: THYRATRON, hole_diameter: 0.437 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, outside_diameter: 12.000 INCHES NOMINAL IN, special_features: ENVELOPE MATERIAL: METAL, style_designator: CIRCULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-359-9512, 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
59-49A
NSN: 5330-00-359-9512
FSC: 5330
CAGE: 60883 — AMETEK INC HEAT TRANSFER DIV (USA)
SPECIFICATIONS
materialASBESTOS OVERALL
tube_typeTHYRATRON
hole_diameter0.437 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
outside_diameter12.000 INCHES NOMINAL IN
special_featuresENVELOPE MATERIAL: METAL
style_designatorCIRCULAR
aperture_diameter9.000 INCHES NOMINAL IN
bolt_hole_quantity6
bolt_circle_diameter10.750 INCHES NOMINAL IN
cross-sectional_thickness0.125 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
nondefinitive_spec/std_data5949A TYPE A
NSN5330-00-359-9512
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 59-49A 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 SHAPE STYLE: SOLID SINGLE OR COMPOSITION
APERTURE DIAMETER: 9.000 INCHES NOMINAL IN
MATERIAL: ASBESTOS OVERALL
CROSS-SECTIONAL THICKNESS: 0.125 INCHES NOMINAL IN
STYLE DESIGNATOR: CIRCULAR
HOLE DIAMETER: 0.437 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
BOLT HOLE QUANTITY: 6
OUTSIDE DIAMETER: 12.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
APERTURE DIAMETER9.000 INCHES NOMINAL IN
MATERIALASBESTOS OVERALL
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
HOLE DIAMETER0.437 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
BOLT HOLE QUANTITY6
OUTSIDE DIAMETER12.000 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION240810001,FSCM 45035 MFR REF SINGLE MATERIAL RESPONSE OVERALL
BOLT CIRCLE DIAMETER10.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
418903-1Interchangeable
interchangeable cross-reference
interchangeable
5949A-1Interchangeable
interchangeable cross-reference
interchangeable
5949AInterchangeable
interchangeable cross-reference
interchangeable
1000998Interchangeable
interchangeable cross-reference
interchangeable
430601036Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 59-49A?
59-49A is a ELECTRON TUBE.
What parts can replace 59-49A?
There are 5 known substitutes for 59-49A: 418903-1, 5949A-1, 5949A and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 59-49A?
59-49A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-359-9512. This indicates validated use in U.S. government and defense supply chains.
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