The Spectacle Frame Ultra Thin, cataloged under National Stock Number 4240-01-679-3323, 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 Eye Safety Systems Inc Div Eye Safety Systems, Inc. a Subsidiary of Oakley Corporation. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-679-3323 |
| Primary Part Number | 740-0561 |
| Item Name | Spectacle Frame Ultra Thin |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Eye Safety Systems Inc Div Eye Safety Systems, Inc. a Subsidiary of Oakley Corporation |
| Status | ACTIVE |
| 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 |
|---|---|
| 740-0561 PRIMARY | Eye Safety Systems Inc Div Eye Safety Systems, Inc. a Subsidiary of Oakley Corporation (USA) |
NSN 4240-01-679-3323 is a Spectacle Frame Ultra Thin, manufactured by Eye Safety Systems Inc Div Eye Safety Systems, Inc. a Subsidiary of Oakley Corporation, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-679-3323 has 1 manufacturer part number on file: 740-0561 (Eye Safety Systems Inc Div Eye Safety Systems, Inc. a Subsidiary of Oakley Corporation).
Key specifications for 740-0561: Special Features: CROSSBOW SUPRESSOR REPLACEMENT FRAME, BLACK; COMPATIBLE WITH ESS CROSSBOW, ULTRA-THIN TEMPLE IS OPTIMIZED FOR USE WITH OVER-THE-EAR COMMUNICATIONS EQUIPMENT AND EAR PROTECTION; NEW ARMY AUTHORIZED PROTECTIVE EYEWEAR LIST (APEL) COMPONENT; Part Name Assigned by Controlling Agency: FRAME,SPECTACLE; End Item Identification: 4240-01-630-8327. 0 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.
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.