The Filter,low Pass, cataloged under National Stock Number 5915-01-421-1327, is classified within Federal Supply Class 5915 (Filters and Networks) of the Electrical and Electronic Equipment Components group. The manufacturer of record is K&l Microwave Llc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5915-01-421-1327 |
| Primary Part Number | 4IL31-510/U1000-P/P |
| Item Name | Filter,low Pass |
| FSC / FSG | 5915 / 59 — Filters and Networks |
| Manufacturer | K&l Microwave Llc |
| Status | ACTIVE |
| Reference Frequency Per Function | 510.0 MEGAHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED |
| Mounting Facility Type and Quantity | 6 TERMINAL LOCATION NOT OTHERWISE SPECIFIED |
| Inclosure Type | ENCASED |
| Functional Terminal Type and Quantity | 1 PIN INPUT FIRST FUNCTION |
| Functional Terminal Type and Quantity | 1 PIN OUTPUT SECOND FUNCTION |
| Functional Terminal Type and Quantity | 4 PIN GROUND THIRD FUNCTION |
| Body Width | 0.380 INCHES NOMINAL IN |
| Body Height | 0.380 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR TERMINAL/TERMINALS ON ONE SURFACE |
| Body Length | 1.000 INCHES NOMINAL IN |
| Frequency Band Width Per Function | 1.00 HERTZ BLANK AND 510.00 MEGAHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED |
| Insertion Loss at Reference Frequency Per Function in Decibels | 1.0 BLANK LOCATION NOT OTHERWISE SPECIFIED |
| 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 |
|---|---|
| 4IL31-510/U1000-P/P | K&l Microwave Llc (USA) |
| Reference | Meaning |
|---|---|
| 6012063-002 | 3/9 Design control — primary reference Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc |
NSN 5915-01-421-1327 is a Filter,low Pass, manufactured by K&l Microwave Llc, classified under FSC 5915, Filters and Networks. Status: active.
NSN 5915-01-421-1327 has 1 manufacturer part number on file: 4IL31-510/U1000-P/P (K&l Microwave Llc).
Key specifications for 4IL31-510/U1000-P/P: Reference Frequency Per Function: 510.0 MEGAHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED; Mounting Facility Type and Quantity: 6 TERMINAL LOCATION NOT OTHERWISE SPECIFIED; Overall Height: 0.500 INCHES NOMINAL IN; Inclosure Type: ENCASED. 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 5915-01-421-1327 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.