The Junction Box, cataloged under National Stock Number 5975-01-543-9049, is classified within Federal Supply Class 5975 (Electrical Hardware and Supplies) of the Electrical and Electronic Equipment Components group. The manufacturer of record is L3 Aviation Products, Inc. Dba L3 Technologies. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5975-01-543-9049 |
| Primary Part Number | 253M-076-700 |
| Item Name | Junction Box |
| FSC / FSG | 5975 / 59 — Electrical Hardware and Supplies |
| Manufacturer | L3 Aviation Products, Inc. Dba L3 Technologies |
| Status | ACTIVE |
| Cover Mounting Hole Quantity | 9 |
| Inside Depth | 1.840 INCHES NOMINAL IN |
| Body Width | 5.500 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR-SQUARE CORNER BOX |
| Body Length | 11.120 INCHES NOMINAL IN |
| Cover Attachment Method | SCREW |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 253M-076-700 PRIMARY | L3 Aviation Products, Inc. Dba L3 Technologies (USA) |
| Reference | Meaning |
|---|---|
| 253-M0312-02 | 5/9 Secondary reference L3 Aviation Products, Inc. Dba L3 Technologies |
NSN 5975-01-543-9049 is a Junction Box, manufactured by L3 Aviation Products, Inc. Dba L3 Technologies, classified under FSC 5975, Electrical Hardware and Supplies. Status: active.
NSN 5975-01-543-9049 has 1 manufacturer part number on file: 253M-076-700 (L3 Aviation Products, Inc. Dba L3 Technologies).
Key specifications for 253M-076-700: Cover Mounting Hole Quantity: 9; Inside Depth: 1.840 INCHES NOMINAL IN; Body Width: 5.500 INCHES NOMINAL IN; Style Designator: RECTANGULAR-SQUARE CORNER BOX. 6 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.
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.