The Cartridge,aircraft Fire Extingui, cataloged under National Stock Number 1377-00-021-9525, is classified within Federal Supply Class 1377 (Cartridge and Propellant Actuated Devices and Components) of the Ammunition and Explosives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1377-00-021-9525 |
| Item Name | Cartridge,aircraft Fire Extingui |
| FSC / FSG | 1377 / 13 — Cartridge and Propellant Actuated Devices and Components |
| Status | ACTIVE |
| General Characteristics Item Description | OVER-ALL DIMENSIONS OF BODY,0.5625 IN. O/A LG,0.500 IN. DIA; SQUIB DATA,1,CLOSED END TYPE,HERCULES HI-TEMP SMOKELESS POWDER,0.964 GR WT OF BURNING CHARGE; 0.375 CAL CARTRIDGE; PACKAGE DATA,4,UNIT QTY,HERMETICALLY SEALED METAL CONTAINER; 1377-M178 DOD CODE IN |
| Dot Proper Shipping Name | CARTRIDGES, POWER DEVICE |
| Package Nominal Overall Diameter | 3.00 INCHES IN |
| Dot Identification Number | UN0323 |
| Dot Registration Code | EX1988050641 |
| Package Nominal Overall Length and Type | 5.00 INCHES SHIPPING CONTAINER IN |
| Hazardous Material Classification Code | 1.4 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION |
| Unable to Decode | UNABLE TO DECODE |
| Gross Weight | 1.0 SHIPPING CONTAINER POUNDS |
| Reference Number Differentiating Characteristics | AS MOD BY 4 UNIT QTY,HERMETICALLY SEALED METAL CONTAINER PKG DATA |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL G — Ammunition & Explosives |
| Hazard | No hazard code in the DLA record (HMIC N) UN ID UN0323 · 1.4 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION · ships as CARTRIDGES, POWER DEVICE |
| Criticality Code | N |
| Reference | Meaning |
|---|---|
| 2518509 | 3/1 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 1377-M178 | 6/9 Informative reference only U.S. Government activity |
NSN 1377-00-021-9525 is a Cartridge,aircraft Fire Extingui, classified under FSC 1377, Cartridge and Propellant Actuated Devices and Components. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 1377-01-311-3420. Verify interchangeability with system specifications before substitution.
Key specifications for 1377-00-021-9525: General Characteristics Item Description: OVER-ALL DIMENSIONS OF BODY,0.5625 IN. O/A LG,0.500 IN. DIA; SQUIB DATA,1,CLOSED END TYPE,HERCULES HI-TEMP SMOKELESS POWDER,0.964 GR WT OF BURNING CHARGE; 0.375 CAL CARTRIDGE; PACKAGE DATA,4,UNIT QTY,HERMETICALLY SEALED METAL CONTAINER; 1377-M178 DOD CODE IN; Dot Proper Shipping Name: CARTRIDGES, POWER DEVICE; Package Nominal Overall Diameter: 3.00 INCHES IN; Dot Identification Number: UN0323. 10 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 1377-00-021-9525 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.