The Restrictor,vision,flyer's Helmet, cataloged under National Stock Number 8415-01-394-8453, is classified within Federal Supply Class 8415 (Clothing, Special Purpose) of the Clothing, Individual Equipment, and Insignia group. The manufacturer of record is Csw Associates Ltd Chappell Salikin Weil Associates Pty. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 8415-01-394-8453 |
| Primary Part Number | D8640 |
| Item Name | Restrictor,vision,flyer's Helmet |
| FSC / FSG | 8415 / 84 — Clothing, Special Purpose |
| Manufacturer | Csw Associates Ltd Chappell Salikin Weil Associates Pty |
| Status | ACTIVE |
| Procurement Group Code | 77777 |
| Color | WHITE |
| Functional Description | USED IN FLIGHT TRAINING;FORCES CREWMEMBER TO FOCUS ON THE INSTRUMENT PANEL |
| Material | PLASTIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| D8640 | Csw Associates Ltd Chappell Salikin Weil Associates Pty (AUS) |
| Reference | Meaning |
|---|---|
| 93D8640 | 5/2 Secondary reference U.S. Government activity |
| 1680-ALSE-110-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 8415-01-394-8453 is a Restrictor,vision,flyer's Helmet, manufactured by Csw Associates Ltd Chappell Salikin Weil Associates Pty, classified under FSC 8415, Clothing, Special Purpose. Status: active.
NSN 8415-01-394-8453 has 1 manufacturer part number on file: D8640 (Csw Associates Ltd Chappell Salikin Weil Associates Pty).
Key specifications for D8640: Overall Height: 3.735 INCHES NOMINAL IN; Overall Length: 7.198 INCHES NOMINAL IN; Overall Width: 10.136 INCHES NOMINAL IN; Procurement Group Code: 77777. 4 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 8415-01-394-8453 has DEMIL Code Q. 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.