The Fuze,proximity, cataloged under National Stock Number 1390-01-371-0544, is classified within Federal Supply Class 1390 (Fuzes and Primers) of the Ammunition and Explosives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1390-01-371-0544 |
| Primary Part Number | 6723753 |
| Item Name | Fuze,proximity |
| FSC / FSG | 1390 / 13 — Fuzes and Primers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Net Explosive Weight | 0.026 STORAGE POUNDS AND 0.026 TRANSPORTATION POUNDS |
| Dot Proper Shipping Name | FUZES, DETONATING |
| Dot Identification Number | UN0409 |
| Dot Registration Code | EX1987120357C |
| Dod Ammunition Code | 1390-N672 |
| Hazardous Material Classification Code | 1.2.2 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION |
| Unable to Decode | UNABLE TO DECODE |
| Gross Weight | 23.0 SHIPPING CONTAINER POUNDS |
| Unpackaged Unit Weight | 2.10 POUNDS LBS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL G — Ammunition & Explosives |
| Hazard | No hazard code in the DLA record (HMIC N) UN ID UN0409 · 1.2.2 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION · ships as FUZES, DETONATING |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 6723753 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 1390-N672 | 6/9 Informative reference only U.S. Government activity |
NSN 1390-01-371-0544 is a Fuze,proximity, manufactured by Naval Sea Systems Command, classified under FSC 1390, Fuzes and Primers. Status: active.
NSN 1390-01-371-0544 has 1 manufacturer part number on file: 6723753 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 1390-01-371-0545, 2835-01-632-7185. Verify interchangeability with system specifications before substitution.
Key specifications for 6723753: Net Explosive Weight: 0.026 STORAGE POUNDS AND 0.026 TRANSPORTATION POUNDS; Dot Proper Shipping Name: FUZES, DETONATING; Dot Identification Number: UN0409; Dot Registration Code: EX1987120357C. 9 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). The government record also carries hazard data: DOT hazard class, UN number, or related classification fields. Special handling, storage, and shipping requirements apply per the cited government fields.
NSN 1390-01-371-0544 has DEMIL Code G. Demilitarization may be required before disposal or transfer to non-military entities.
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.