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42253-1 — TRANSFORMER,RADIO FREQUENCY

✓ Government record, cited
Legrand · ORING SEAL
PRODUCT OVERVIEW

42253-1: TRANSFORMER,RADIO FREQUENCY.

The TRANSFORMER,RADIO FREQUENCY is a Legrand industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL, body_width: 0.440 INCHES NOMINAL IN, body_height: 0.500 INCHES NOMINAL IN, body_length: 0.440 INCHES NOMINAL IN, rating_method: ELECTRICAL AND WINDING TURNS SINGLE COMPONENT SINGLE PRIMARY, turn_quantity: 9-1/4 SINGLE COMPONENT SINGLE SECONDARY. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-920-7191, 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
42253-1
NSN: 5330-00-920-7191
NIINs: 009207191, 009410328
FSC: 5330 — Packing and Gasket Materials
CAGE: 81982 — HYDRO-AIRE AEROSPACE CORP (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
body_width0.440 INCHES NOMINAL IN
body_height0.500 INCHES NOMINAL IN
body_length0.440 INCHES NOMINAL IN
rating_methodELECTRICAL AND WINDING TURNS SINGLE COMPONENT SINGLE PRIMARY
turn_quantity9-1/4 SINGLE COMPONENT SINGLE SECONDARY
coil_form_typeHOLLOW SINGLE COMPONENT
inclosure_typeFULLY INCLOSED
mounting_methodTERMINAL SINGLE GROUP
frequency_rating10.0 MEGAHERTZ MINIMUM AND 50.0 MEGAHERTZ MAXIMUM SINGLE COMPONENT
inductance_rating0.20 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY
peripheral_diameter5.875 INCHES NOMINAL IN
NSN5330-00-920-7191
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 42253-1 MFR: Legrand ⚠ 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 HEIGHT: 0.175 INCHES NOMINAL IN
•
PERIPHERAL DIAMETER: 5.875 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 5.775 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.175 INCHES NOMINAL IN
PERIPHERAL DIAMETER5.875 INCHES NOMINAL IN
CENTER HOLE DIAMETER5.775 INCHES NOMINAL IN
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
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 42253-1?
42253-1 is a TRANSFORMER,RADIO FREQUENCY manufactured by Legrand.
What is the NSN for 42253-1?
42253-1 is cataloged in the U.S. Government catalog under NSN 5330-00-920-7191. 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.