The Filter,radio Frequency Interfere, cataloged under National Stock Number 5915-00-137-3003, is classified within Federal Supply Class 5915 (Filters and Networks) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Piezothermx Corporation. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5915-00-137-3003 |
| Primary Part Number | D249 |
| Item Name | Filter,radio Frequency Interfere |
| FSC / FSG | 5915 / 59 — Filters and Networks |
| Manufacturer | Piezothermx Corporation |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 THREADED BUSHING THIRD FUNCTION |
| Inclosure Type | HERMETICALLY SEALED |
| Power Line Frequency Rating Per Function in Hertz | 400.0 BLANK LOCATION NOT OTHERWISE SPECIFIED |
| Functional Terminal Type and Quantity | 1 TAB, SOLDER LUG INPUT FIRST FUNCTION |
| Functional Terminal Type and Quantity | 1 TAB, SOLDER LUG OUTPUT SECOND FUNCTION |
| Body Outside Diameter | 0.416 INCHES MAXIMUM IN |
| Maximum Voltage Drop Per Function | 500.0 MILLIVOLTS AC BLANK AND 500.0 MILLIVOLTS DC BLANK LOCATION NOT OTHERWISE SPECIFIED |
| Body Length | 0.575 INCHES MAXIMUM IN |
| Operating Voltage Rating and Type Per Function | 120.0 VOLTS AC BLANK AND 150.0 VOLTS DC BLANK LOCATION NOT OTHERWISE SPECIFIED |
| Principal Circuitry Type Per Function | INDUCTANCE-CAPACITANCE BLANK LOCATION NOT OTHERWISE SPECIFIED |
| Operating Current Rating Per Function in Amps | 1.0 BLANK LOCATION NOT OTHERWISE SPECIFIED |
| Operating Temp Range | -54.0 TO 95.0 CELSIUS DEGC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| D249 PRIMARY | Piezothermx Corporation (USA) |
| RF4299-1 | Ems Development Corporation Dba Ems Development Corp (USA) |
| Reference | Meaning |
|---|---|
| 9001-100-1031 | 5/9 Secondary reference Murata Erie North America Inc Divof Murata Erie |
| 8413-1001 | 5/9 Secondary reference Potter L Inc |
| 121-088-0001 | 1/2 Source control — Government-approved source U.S. Government activity |
| 1JX3704A2 | C/1 Advisory reference — outside the item-of-supply concept Sprague Electric Co World Hqs |
NSN 5915-00-137-3003 is a Filter,radio Frequency Interfere, manufactured by Piezothermx Corporation, classified under FSC 5915, Filters and Networks. Status: active.
NSN 5915-00-137-3003 has 2 manufacturer part numbers on file: D249 (Piezothermx Corporation), RF4299-1 (Ems Development Corporation Dba Ems Development Corp).
1 possible match (shared part number, not a government interchangeability claim): 6105-00-139-5088. Verify interchangeability with system specifications before substitution.
Key specifications for D249: Mounting Facility Type and Quantity: 1 THREADED BUSHING THIRD FUNCTION; Inclosure Type: HERMETICALLY SEALED; Power Line Frequency Rating Per Function in Hertz: 400.0 BLANK LOCATION NOT OTHERWISE SPECIFIED; Functional Terminal Type and Quantity: 1 TAB, SOLDER LUG INPUT FIRST FUNCTION. 12 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5915-00-137-3003 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.