The Cap,electrical, cataloged under National Stock Number 5999-00-577-6778, is classified within Federal Supply Class 5999 (Miscellaneous Electrical and Electronic Components) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Littelfuse, Inc.. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-00-577-6778 |
| Primary Part Number | 342012SA2 |
| Item Name | Cap,electrical |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Littelfuse, Inc. |
| Status | ACTIVE |
| FSC Application Data | U/W FUSEHOLDER |
| Length | 0.625 INCHES NOMINAL IN |
| Chain | NOT INCLUDED |
| Mounting Method | THREAD |
| Diameter | 0.500 INCHES NOMINAL IN |
| Insert | INCLUDED |
| Thread Size | 1/2-16 |
| Fastening Facility | SERRATED EDGE |
| Material | PLASTIC BODY |
| Material | COPPER ALLOY INSERT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | JN |
| Weight | 0.0146 lbs |
| Cube | 0.0012 cu ft |
| Part Number | Manufacturer |
|---|---|
| 342012SA2 PRIMARY | Littelfuse, Inc. (USA) |
| Reference | Meaning |
|---|---|
| SMB354714 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5999-00-577-6778 is a Cap,electrical, manufactured by Littelfuse, Inc., classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-00-577-6778 has 1 manufacturer part number on file: 342012SA2 (Littelfuse, Inc.).
Key specifications for 342012SA2: FSC Application Data: U/W FUSEHOLDER; Length: 0.625 INCHES NOMINAL IN; Chain: NOT INCLUDED; Mounting Method: THREAD. 10 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.