The Riser Extension,parachute, cataloged under National Stock Number 1670-01-733-4341, is classified within Federal Supply Class 1670 (Parachutes; Aerial Pick up, Delivery, Recovery Systems; and Cargo Tie Down Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Butler Parachute Systems, Inc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Riser Extension,parachute |
| FSC / FSG | 1670 — Parachutes; Aerial Pick up, Delivery, Recovery Systems; and Cargo Tie Down Equipment (FSG 16) |
| Manufacturers | Butler Parachute Systems, Inc (CAGE 0D4Z0) |
| Parameter | Value |
|---|---|
| NSN | 1670-01-733-4341 |
| Primary Part Number | 201063-1806 |
| Item Name | Riser Extension,parachute |
| FSC / FSG | 1670 / 16 — Parachutes; Aerial Pick up, Delivery, Recovery Systems; and Cargo Tie Down Equipment |
| Manufacturer | Butler Parachute Systems, 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 |
|---|---|
| 201063-1806 PRIMARY | Butler Parachute Systems, Inc (USA) |
| Reference | Meaning |
|---|---|
| 11135-L-S | D/9 Drawing number reference only Butler Parachute Systems, Inc |
NSN 1670-01-733-4341 is a Riser Extension,parachute, manufactured by Butler Parachute Systems, Inc, classified under FSC 1670, Parachutes; Aerial Pick up, Delivery, Recovery Systems; and Cargo Tie Down Equipment. Status: active.
NSN 1670-01-733-4341 has 1 manufacturer part number on file: 201063-1806 (Butler Parachute Systems, Inc).
2 possible matches (shared part number, not a government interchangeability claim): 1680-01-733-6725, 1680-01-734-2695. Verify interchangeability with system specifications before substitution.
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.