The Heater,thermal Release, cataloged under National Stock Number 5999-00-138-1007, 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 Schneider Electric Usa, Inc.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-00-138-1007 |
| Primary Part Number | A4.79 |
| Item Name | Heater,thermal Release |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Schneider Electric Usa, Inc. |
| Status | ACTIVE |
| Current Rating for Which Designed | 3.5 AMPERES MINIMUM AND 3.9 AMPERES MAXIMUM |
| 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 | 0.0500 lbs |
| Cube | 0.0105 cu ft |
| Part Number | Manufacturer |
|---|---|
| A4.79 PRIMARY | Schneider Electric Usa, Inc. (USA) |
| Reference | Meaning |
|---|---|
| A4-79 | 5/9 Secondary reference Schneider Electric Usa, Inc. |
NSN 5999-00-138-1007 is a Heater,thermal Release, manufactured by Schneider Electric Usa, Inc., classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-00-138-1007 has 1 manufacturer part number on file: A4.79 (Schneider Electric Usa, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4730-00-359-7031. Verify interchangeability with system specifications before substitution.
Key specifications for A4.79: Current Rating for Which Designed: 3.5 AMPERES MINIMUM AND 3.9 AMPERES MAXIMUM. 1 specification is 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.