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T749 — TRANSFORMER,AUDIO FREQUENCY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

T749: TRANSFORMER,AUDIO FREQUENCY.

The TRANSFORMER,AUDIO FREQUENCY is a the manufacturer industrial component. Key specifications include material: ASBESTOS AND COPPER OVERALL, body_width: 0.905 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN, body_height: 0.811 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN, body_length: 1.061 INCHES MINIMUM AND 1.062 INCHES MAXIMUM IN, inclosure_type: FULLY INCLOSED, frequency_rating: 1.5 KILOHERTZ NOMINAL SINGLE COMPONENT. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-430-3426, 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
T749
NSN: 5330-00-430-3426
NIINs: 004303426, 008597873
FSC: 5330 — Packing and Gasket Materials
CAGE: 07334 — ITW INDUSTRIAL FINISHING DBA BINKS DEVILBISS (USA)
SPECIFICATIONS
materialASBESTOS AND COPPER OVERALL
body_width0.905 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN
body_height0.811 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN
body_length1.061 INCHES MINIMUM AND 1.062 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
frequency_rating1.5 KILOHERTZ NOMINAL SINGLE COMPONENT
outside_diameter0.509 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
style_designatorCIRCULAR
aperture_diameter0.436 INCHES NOMINAL IN
reliability_indicatorNOT ESTABLISHED
cross-sectional_thickness0.063 INCHES NOMINAL IN
terminal_type_and_quantity9 WIRE LEAD
NSN5330-00-430-3426
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: T749 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
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: METAL WITH SOFT FILLER
•
OUTSIDE DIAMETER: 0.509 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
•
APERTURE DIAMETER: 0.436 INCHES NOMINAL IN
•
MATERIAL: ASBESTOS AND COPPER OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.063 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL SHAPE STYLEMETAL WITH SOFT FILLER
OUTSIDE DIAMETER0.509 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
APERTURE DIAMETER0.436 INCHES NOMINAL IN
MATERIALASBESTOS AND COPPER OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is T749?
T749 is a TRANSFORMER,AUDIO FREQUENCY.
What is the NSN for T749?
T749 is cataloged in the U.S. Government catalog under NSN 5330-00-430-3426. 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.