The Fuze,mechanical Time and Superqu, cataloged under National Stock Number 1390-00-028-4908, is classified within Federal Supply Class 1390 (Fuzes and Primers) of the Ammunition and Explosives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 1390-00-028-4908 |
| Item Name | Fuze,mechanical Time and Superqu |
| FSC / FSG | 1390 / 13 — Fuzes and Primers |
| Status | ACTIVE |
| Assembly Type | INTEGRAL |
| Net Explosive Weight | 0.05037 STORAGE POUNDS AND 0.05037 TRANSPORTATION POUNDS |
| Delay Time in Seconds | 75.000 NOMINAL |
| Fuze Model Number | M500 |
| Dot Proper Shipping Name | FUZES, DETONATING |
| Unit Package Type | CAN, METAL AND BOX, WOOD |
| Dot Identification Number | UN0107 |
| Dot Registration Code | EX1988110928 |
| Fuze Wrench | NOT INCLUDED |
| Unit Package Quantity | 1 AND 15 |
| Dod Ammunition Code | 1390-N275 |
| Hazardous Material Classification Code | 1.2.2 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION |
| Unable to Decode | UNABLE TO DECODE |
| Action Time Designation | TIME DELAY |
| Booster Model Number | M21A4 |
| Package Reference Number | 7548120 US ARMY US |
| Gross Weight | 48.7 SHIPPING CONTAINER POUNDS AND 2020.0 PALLET POUNDS |
| Booster | INCLUDED |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY DELAY TIME; FUZE MODEL NUMBER;UNIT PACKAGE QUANTITY;UNIT PACKAGE TYPE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL G — Ammunition & Explosives |
| Hazard | No hazard code in the DLA record (HMIC N) UN ID UN0107 · 1.2.2 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION · ships as FUZES, DETONATING |
| Criticality Code | N |
| Reference | Meaning |
|---|---|
| 73-7-135 | 3/1 Design control — primary reference Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Us Army Research, Development and Engineering Command Armament |
| MIL-F-10074 | 4/1 Identification reference U.S. Government activity |
| 1390-N275 | 6/9 Informative reference only U.S. Government activity |
NSN 1390-00-028-4908 is a Fuze,mechanical Time and Superqu, classified under FSC 1390, Fuzes and Primers. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 1390-00-028-4911, 3040-00-122-6100, 5945-00-501-9699. Verify interchangeability with system specifications before substitution.
Key specifications for 1390-00-028-4908: Assembly Type: INTEGRAL; Net Explosive Weight: 0.05037 STORAGE POUNDS AND 0.05037 TRANSPORTATION POUNDS; Delay Time in Seconds: 75.000 NOMINAL; Fuze Model Number: M500. 19 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 1390-00-028-4908 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.