The Heater,thermal Release, cataloged under National Stock Number 5999-00-504-9458, 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 5 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5999-00-504-9458 |
| Primary Part Number | 90403W1FIG4-1A |
| 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 | 2 UNTHREADED HOLE(S) |
| Mounting Hole Diameter | 0.188 INCHES NOMINAL IN |
| Surface Treatment | SILVER |
| Precious Material and Location | TERMINAL SURFACES SILVER |
| Material | COPPER ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Weight | 0.4100 lbs |
| Cube | 0.0090 cu ft |
| Part Number | Manufacturer |
|---|---|
| 90403W1FIG4-1A PRIMARY | Eaton Corp Opns & Technical Center (USA) |
| 89368W1FIG1ITEM1EM1A PRIMARY | Eaton Corp Opns & Technical Center (USA) |
| CV47S6507-767873M2A PRIMARY | Eaton Corp Opns & Technical Center (USA) |
| 9104H2819 PRIMARY | Eaton Corp Opns & Technical Center (USA) |
| 76411W1ITEM24 PRIMARY | Eaton Corp Opns & Technical Center (USA) |
| S5901-599838ITEMEM1B PRIMARY | Eaton Corp Opns & Technical Center (USA) |
| Reference | Meaning |
|---|---|
| 962-1-14M1ALT1ITITEM1A | 3/2 Design control — primary reference U.S. Government activity |
| 962-1-1X9ALT2ITEITEM1B | 3/2 Design control — primary reference U.S. Government activity |
| S3801-599522ITEM1ITEM1A | 3/2 Design control — primary reference U.S. Government activity |
| 94204S6307-506991A | 3/2 Design control — primary reference U.S. Government activity |
NSN 5999-00-504-9458 is a Heater,thermal Release, manufactured by Eaton Corp Opns & Technical Center, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-00-504-9458 has 6 manufacturer part numbers on file: 90403W1FIG4-1A (Eaton Corp Opns & Technical Center), 89368W1FIG1ITEM1EM1A (Eaton Corp Opns & Technical Center), CV47S6507-767873M2A (Eaton Corp Opns & Technical Center), 9104H2819 (Eaton Corp Opns & Technical Center), 76411W1ITEM24 (Eaton Corp Opns & Technical Center) and 1 more.
Key specifications for 90403W1FIG4-1A: Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S); Overall Height: 1.000 INCHES NOMINAL IN; Mounting Hole Diameter: 0.188 INCHES NOMINAL IN; Overall Length: 2.875 INCHES NOMINAL IN. 5 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.