The Heater,thermal Release, cataloged under National Stock Number 5999-00-503-3554, 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 Eaton Corp Opns & Technical Center. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5999-00-503-3554 |
| Primary Part Number | 9104H3440 |
| Item Name | Heater,thermal Release |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Eaton Corp Opns & Technical Center |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 UNTHREADED HOLE(S) |
| Mounting Hole Diameter | 0.312 INCHES NOMINAL IN |
| Material | NICKEL ALLOY |
| Current Rating for Which Designed | 25.0 AMPERES MINIMUM AND 30.0 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 | Y |
| Part Number | Manufacturer |
|---|---|
| 9104H3440 PRIMARY | Eaton Corp Opns & Technical Center (USA) |
| 9586H3440A PRIMARY | Eaton Corp Opns & Technical Center (USA) |
| 16568-1ITEM98 PRIMARY | Ward Leonard Ct Llc (USA) |
| 1067ESH1ITEM30 PRIMARY | Eaton Corp Opns & Technical Center (USA) |
| Reference | Meaning |
|---|---|
| 437438ITEM9B | 3/2 Design control — primary reference U.S. Government activity |
NSN 5999-00-503-3554 is a Heater,thermal Release, manufactured by Eaton Corp Opns & Technical Center, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-00-503-3554 has 4 manufacturer part numbers on file: 9104H3440 (Eaton Corp Opns & Technical Center), 9586H3440A (Eaton Corp Opns & Technical Center), 16568-1ITEM98 (Ward Leonard Ct Llc), 1067ESH1ITEM30 (Eaton Corp Opns & Technical Center).
Key specifications for 9104H3440: Mounting Facility Type and Quantity: 1 UNTHREADED HOLE(S); Overall Height: 0.750 INCHES NOMINAL IN; Mounting Hole Diameter: 0.312 INCHES NOMINAL IN; Overall Length: 2.250 INCHES NOMINAL IN. 4 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.