The Junction Box, cataloged under National Stock Number 5975-01-145-6770, is classified within Federal Supply Class 5975 (Electrical Hardware and Supplies) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Egs Electrical Group Appleton Div. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5975-01-145-6770 |
| Primary Part Number | 4SD-SPL |
| Item Name | Junction Box |
| FSC / FSG | 5975 / 59 — Electrical Hardware and Supplies |
| Manufacturer | Egs Electrical Group Appleton Div |
| Status | ACTIVE |
| Cover Mounting Hole Quantity | 2 |
| Inside Depth | 2.125 INCHES NOMINAL IN |
| Body Width | 4.000 INCHES NOMINAL IN |
| Style Designator | SQUARE-OPPOSITE CORNER TABS |
| Entrance Quantity | 15 |
| Body Length | 4.000 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 |
|---|---|
| 4SD-SPL | Egs Electrical Group Appleton Div (USA) |
| Reference | Meaning |
|---|---|
| 4-SDW-SPL | 3/2 Design control — primary reference U.S. Government activity |
| 52171-1/2-3/4 | 5/9 Secondary reference Thepitt Mfg Co |
NSN 5975-01-145-6770 is a Junction Box, manufactured by Egs Electrical Group Appleton Div, classified under FSC 5975, Electrical Hardware and Supplies. Status: active.
NSN 5975-01-145-6770 has 1 manufacturer part number on file: 4SD-SPL (Egs Electrical Group Appleton Div).
Key specifications for 4SD-SPL: Cover Mounting Hole Quantity: 2; Inside Depth: 2.125 INCHES NOMINAL IN; Body Width: 4.000 INCHES NOMINAL IN; Style Designator: SQUARE-OPPOSITE CORNER TABS. 7 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.