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Technical Data Sheet
311-A1 ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The TRANSFORMER,AUDIO FREQUENCY is a the manufacturer industrial component. Key specifications include body_width: 0.969 INCHES MAXIMUM IN, body_height: 1.438 INCHES MAXIMUM IN, body_length: 1.062 INCHES MAXIMUM IN, inclosure_type: OPEN, overall_height: 1.625 INCHES MAXIMUM IN, mounting_method: THREADED HOLE(S) SINGLE GROUP. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-683-7296, 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
311-A1
NSN: 5950-00-683-7296
FSC: 5950
CAGE: 72149 — ELECTRONIC TRANSFORMER CORP DIV ELECTRONIC TRANSFORMER CORPORATION (USA)
SPECIFICATIONS
body_width0.969 INCHES MAXIMUM IN
body_height1.438 INCHES MAXIMUM IN
body_length1.062 INCHES MAXIMUM IN
inclosure_typeOPEN
overall_height1.625 INCHES MAXIMUM IN
mounting_methodTHREADED HOLE(S) SINGLE GROUP
frequency_rating400.0 HERTZ MAXIMUM SINGLE COMPONENT
nominal_thread_size0.112 INCHES SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
end_item_identificationSTEAM TURBINE,SHIPS PROPULSION SYSTEM
impedance_rating_in_ohms500.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
thread_quantity_per_inch40 SINGLE GROUP
NSN5950-00-683-7296
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN 311-A1 MFR TRANSFORMER,AUDIO FREQ
KEY FEATURES
RELIABILITY INDICATOR: NOT ESTABLISHED
IMPEDANCE RATING IN OHMS: 2500.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
BODY HEIGHT: 1.438 INCHES MAXIMUM IN
WINDING OPERATING CURRENT: 15.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
INCLOSURE TYPE: OPEN
DISTANCE BETWEEN MOUNTING FACILITY CENTERS: 0.656 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
MOUNTING FACILITY QUANTITY: 2 SINGLE GROUP
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT1.625 INCHES MAXIMUM IN
RELIABILITY INDICATORNOT ESTABLISHED
IMPEDANCE RATING IN OHMS2500.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
BODY HEIGHT1.438 INCHES MAXIMUM IN
WINDING OPERATING CURRENT15.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
INCLOSURE TYPEOPEN
DISTANCE BETWEEN MOUNTING FACILITY CENTERS0.656 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
MOUNTING FACILITY QUANTITY2 SINGLE GROUP
BODY LENGTH1.062 INCHES MAXIMUM IN
MOUNTING METHODTHREADED HOLE(S) SINGLE GROUP
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
459-36Interchangeable
interchangeable cross-reference
interchangeable
751381-103Interchangeable
interchangeable cross-reference
interchangeable
311-A1Interchangeable
interchangeable cross-reference
interchangeable
60-827Interchangeable
interchangeable cross-reference
interchangeable
TAS8904-5-3Interchangeable
interchangeable cross-reference
interchangeable
25909Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 311-A1?
311-A1 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace 311-A1?
There are 12 known substitutes for 311-A1: 459-36, 751381-103, 311-A1 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 311-A1?
311-A1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-683-7296. This indicates validated use in U.S. government and defense supply chains.
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