The Headband,goggles, cataloged under National Stock Number 4240-01-583-5181, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Smith Sport Optics, Inc. Dba Smith Optics Div Www.smithoptics.com. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-583-5181 |
| Primary Part Number | OTWSTRAP-T499 |
| Item Name | Headband,goggles |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Smith Sport Optics, Inc. Dba Smith Optics Div Www.smithoptics.com |
| Status | ACTIVE |
| Color | TAN BOTH SIDES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| OTWSTRAP-T499 PRIMARY | Smith Sport Optics, Inc. Dba Smith Optics Div Www.smithoptics.com (USA) |
| Reference | Meaning |
|---|---|
| OTWSTRAP-TN | 3/9 Design control — primary reference Smith Sport Optics, Inc. Dba Smith Optics Div Www.smithoptics.com |
NSN 4240-01-583-5181 is a Headband,goggles, manufactured by Smith Sport Optics, Inc. Dba Smith Optics Div Www.smithoptics.com, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-583-5181 has 1 manufacturer part number on file: OTWSTRAP-T499 (Smith Sport Optics, Inc. Dba Smith Optics Div Www.smithoptics.com).
Key specifications for OTWSTRAP-T499: Color: TAN BOTH SIDES; Special Features: DESERT TAN;LOCKS INTO THE DESERT TAN GOGGLE FRAME; Part Name Assigned by Controlling Agency: SMITH OPTICS OUTSIDE THE WIRE DESERT TAN REPLACEMENT NECK STRAP. 1 specification is 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.
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.