The Indicator,shaft,extension, cataloged under National Stock Number 1440-01-666-0629, is classified within Federal Supply Class 1440 (Launchers, Guided Missile) of the Guided Missiles group. The manufacturer of record is Marvin Engineering Co, Inc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Indicator,shaft,extension |
| FSC / FSG | 1440 — Launchers, Guided Missile (FSG 14) |
| Manufacturers | Marvin Engineering Co, Inc (CAGE 32067); Vertex Modernization and Sustainment Llc (CAGE 072E5) |
| Parameter | Value |
|---|---|
| NSN | 1440-01-666-0629 |
| Primary Part Number | 3972AS331-1 |
| Item Name | Indicator,shaft,extension |
| FSC / FSG | 1440 / 14 — Launchers, Guided Missile |
| Manufacturer | Marvin Engineering Co, Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3972AS331-1 PRIMARY | Marvin Engineering Co, Inc (USA) |
| 3972AS331-1 | Vertex Modernization and Sustainment Llc (USA) |
| Reference | Meaning |
|---|---|
| 3972AS331-1 | C/1 Advisory reference — outside the item-of-supply concept Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 1440-01-666-0629 is a Indicator,shaft,extension, manufactured by Marvin Engineering Co, Inc, classified under FSC 1440, Launchers, Guided Missile. Status: active.
NSN 1440-01-666-0629 has 2 manufacturer part numbers on file: 3972AS331-1 (Marvin Engineering Co, Inc), 3972AS331-1 (Vertex Modernization and Sustainment Llc).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.