The Stop,interim,initiation Subsyste, cataloged under National Stock Number 1680-00-261-9989, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-00-261-9989 |
| Item Name | Stop,interim,initiation Subsyste |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL AMS6378,0.304 IN. MIN,0.308 IN. MAX DIA,0.780 IN. LGO/A,0.110 IN. W BY 0.560 IN. LG SLOT EQUAL DISTANCE FROM EACH END,0.093 IN. MIN,0.103 IN. MAX HOLE DRILLED ON CENTERLINE 90 DEG FROMSLOT IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 472P400C206-7 | C/1 Advisory reference — outside the item-of-supply concept Ami Industries, Inc Div Utc Aerospace Systems |
| 472P400C206-7 | 3/9 Design control — primary reference Universal Propulsion Company Inc Dba Goodrich Div Universal Propulsion Co., Inc. |
NSN 1680-00-261-9989 is a Stop,interim,initiation Subsyste, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
Key specifications for 1680-00-261-9989: General Characteristics Item Description: STEEL AMS6378,0.304 IN. MIN,0.308 IN. MAX DIA,0.780 IN. LGO/A,0.110 IN. W BY 0.560 IN. LG SLOT EQUAL DISTANCE FROM EACH END,0.093 IN. MIN,0.103 IN. MAX HOLE DRILLED ON CENTERLINE 90 DEG FROMSLOT IN; End Item Identification: ACFT EJECTION SEAT. 1 specification is 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 1680-00-261-9989 has DEMIL Code B. 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.