The Heater,thermal Release, cataloged under National Stock Number 5999-01-641-6307, 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 Ward Leonard Ct Llc. Government technical data includes 1 specification, 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-01-641-6307 |
| Primary Part Number | 81D326 |
| Item Name | Heater,thermal Release |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Ward Leonard Ct Llc |
| Status | ACTIVE |
| Current Rating for Which Designed | 3.92 AMPERES NOMINAL |
| 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 | Z |
| Weight | 0.0500 lbs |
| Cube | 0.0058 cu ft |
| Part Number | Manufacturer |
|---|---|
| 782211-A00 | L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. (USA) |
| 81D326 PRIMARY | Ward Leonard Ct Llc (USA) |
NSN 5999-01-641-6307 is a Heater,thermal Release, manufactured by Ward Leonard Ct Llc, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-641-6307 has 2 manufacturer part numbers on file: 782211-A00 (L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.), 81D326 (Ward Leonard Ct Llc).
Key specifications for 81D326: Overall Length: 2.53 INCHES MAXIMUM IN; Overall Width: 2.64 INCHES MAXIMUM IN; Part Name Assigned by Controlling Agency: HEATER, THERMAL OVERLOAD; Current Rating for Which Designed: 3.92 AMPERES NOMINAL. 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.