The Trigger, cataloged under National Stock Number 1010-00-439-1773, is classified within Federal Supply Class 1010 (Guns, Over 30mm up to 75mm) of the Weapons group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 5 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 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 | 1010-00-439-1773 |
| Primary Part Number | 8448341 |
| Item Name | Trigger |
| FSC / FSG | 1010 / 10 — Guns, Over 30mm up to 75mm |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| FSC Application Data | LAUNCHER,GRENADE,40 MM MM |
| Weapon Model Number | M203 |
| Style Designator | TRIGGER PLAIN |
| Pivot Hole Diameter | 0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN |
| Weapon Size Designation | 40 MILLIMETER MM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 8448341 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 1010-00-439-1773 is a Trigger, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 1010, Guns, Over 30mm up to 75mm. Status: active.
NSN 1010-00-439-1773 has 1 manufacturer part number on file: 8448341 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-173-0684. Verify interchangeability with system specifications before substitution.
Key specifications for 8448341: FSC Application Data: LAUNCHER,GRENADE,40 MM MM; Weapon Model Number: M203; Style Designator: TRIGGER PLAIN; Overall Length: 1.266 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1010-00-439-1773 has DEMIL Code D. 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.