The Switch,lever, cataloged under National Stock Number 5930-00-252-8750, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Telephone Company of America Incorporated. Government technical data includes 8 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-00-252-8750 |
| Primary Part Number | B40588 |
| Item Name | Switch,lever |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Telephone Company of America Incorporated |
| Status | ACTIVE |
| Pile-Up Contact Form Arrangement | 1A FIRST POSITION A |
| Pile-Up Contact Form Arrangement | 1B SECOND POSITION |
| Inclosure Type | FULLY INCLOSED |
| Nominal Thread Size | 0.138 INCHES IN |
| Thread Quantity Per Inch | 32 |
| Terminal Type and Quantity | 4 TAB, SOLDER LUG |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Hazardous Locations/environmental Protection | WEATHERPROOF |
| 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 |
|---|---|
| B40588 PRIMARY | Telephone Company of America Incorporated (USA) |
| C1GY PRIMARY | Telephone Company of America Incorporated (USA) |
| Reference | Meaning |
|---|---|
| SCD4653 | 5/9 Secondary reference At and T Corp |
| SCD4653 | 3/2 Design control — primary reference U.S. Government activity |
| D162975GY | C/1 Advisory reference — outside the item-of-supply concept Lucent Technologies Inc Corporate Headquarters |
| D162975GY | 5/9 Secondary reference American Telephone and Telegraph Co |
| C1GY | 5/9 Secondary reference American Telephone and Telegraph Co |
| SCD4653 | 5/9 Secondary reference American Telephone and Telegraph Co |
| C1GY | 5/9 Secondary reference At and T Corp |
| D162975GY | 5/9 Secondary reference Lucent Technologies Inc Dba Federal Marketing Group |
NSN 5930-00-252-8750 is a Switch,lever, manufactured by Telephone Company of America Incorporated, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-252-8750 has 2 manufacturer part numbers on file: B40588 (Telephone Company of America Incorporated), C1GY (Telephone Company of America Incorporated).
Key specifications for B40588: Pile-Up Contact Form Arrangement: 1A FIRST POSITION A; Pile-Up Contact Form Arrangement: 1B SECOND POSITION; Inclosure Type: FULLY INCLOSED; Nominal Thread Size: 0.138 INCHES IN. 8 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.