The Eyeshield,optical Instrument, cataloged under National Stock Number 5855-01-138-4985, is classified within Federal Supply Class 5855 (Night Vision Equipment, Emitted and Reflected Radiation) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Thermo Jarrell Ash Corp Baird Div. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5855-01-138-4985 |
| Primary Part Number | SM-C-771453 |
| Item Name | Eyeshield,optical Instrument |
| FSC / FSG | 5855 / 58 — Night Vision Equipment, Emitted and Reflected Radiation |
| Manufacturer | Thermo Jarrell Ash Corp Baird Div |
| Status | ACTIVE |
| FSC Application Data | NIGHT VISION EQUIPMENT,EMITTED AND REFLECTED RADIATION |
| Material Document and Classification | L-P-393, FORM 1 FED SPEC SINGLE MATERIAL RESPONSE |
| Attachment End Inside Diameter | 0.633 INCHES IN |
| Viewing End Inside Diameter | 0.648 INCHES IN |
| Material | PLASTIC POLYCARBONATE |
| Attachment Method | PRESS FIT |
| 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 |
|---|---|
| SM-C-771453 | Thermo Jarrell Ash Corp Baird Div (USA) |
| SM-C-771453 | Ordnance Parts and Engineering Co (USA) |
| Reference | Meaning |
|---|---|
| SM-C-771453 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5855-01-138-4985 is a Eyeshield,optical Instrument, manufactured by Thermo Jarrell Ash Corp Baird Div, classified under FSC 5855, Night Vision Equipment, Emitted and Reflected Radiation. Status: active.
NSN 5855-01-138-4985 has 2 manufacturer part numbers on file: SM-C-771453 (Thermo Jarrell Ash Corp Baird Div), SM-C-771453 (Ordnance Parts and Engineering Co).
Key specifications for SM-C-771453: FSC Application Data: NIGHT VISION EQUIPMENT,EMITTED AND REFLECTED RADIATION; Material Document and Classification: L-P-393, FORM 1 FED SPEC SINGLE MATERIAL RESPONSE; Attachment End Inside Diameter: 0.633 INCHES IN; Viewing End Inside Diameter: 0.648 INCHES IN. 6 specifications are documented in the U.S. Government catalog.
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.