The Sunglasses,aircrew with Case, cataloged under National Stock Number 6540-01-532-5452, is classified within Federal Supply Class 6540 (Ophthalmic Instruments, Equipment, and Supplies) of the Medical, Dental, and Veterinary Equipment group. The manufacturer of record is Art-Craft Optical Company, Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6540-01-532-5452 |
| Primary Part Number | 26457-5818-0140 |
| Item Name | Sunglasses,aircrew with Case |
| FSC / FSG | 6540 / 65 — Ophthalmic Instruments, Equipment, and Supplies |
| Manufacturer | Art-Craft Optical Company, 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 |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 26457-5818-0140 PRIMARY | Art-Craft Optical Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 05-1223 | 5/1 Secondary reference U.S. Government activity |
| SUNGLASSES W/CASE AIRCREW | 5/1 Secondary reference Art-Craft Optical Company, Inc. |
NSN 6540-01-532-5452 is a Sunglasses,aircrew with Case, manufactured by Art-Craft Optical Company, Inc., classified under FSC 6540, Ophthalmic Instruments, Equipment, and Supplies. Status: active.
NSN 6540-01-532-5452 has 1 manufacturer part number on file: 26457-5818-0140 (Art-Craft Optical Company, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 6540-01-532-5453. Verify interchangeability with system specifications before substitution.
Key specifications for 26457-5818-0140: Special Features: USAF AIRCREW NON-PRESCRIPTION SUNGLASSES WITH CASE; LARGE - FEATURES: MONEL-NICKLE ELECTRO-PHORETIC PLATED GOLD FRAME AND 140MM BAYONET TEMPLES; 58MM EYE SIZE W/18MM BRIDGE, NOSE PAD MADE OF SILICONE MATERIAL, END PIECE AND HINGE IS A STURDY ONE BLOCK (MONO BLOCK) DESIGN AND BENT BACKWARD NOT TO PROTRUDE MORE THAN 2MM HORIZONTALLY FROM THE EYE WIRE. LENS OPTICAL FEATURE: HARD-COATED POLYCARBONATE NEUTRAL DENSITY (GRAY) LENSES WITH 15% LIGHT TRANSMISSION (POLARIZATION NOT AUTHORIZED). SOFT CASE WITH BELT LOOP. OCULAR SUN PROTECTION FOR AIRCREW. AUTHORIZED FOR USE IN FLIGHT; OPERATIONAL WEAR MM; Part Name Assigned by Controlling Agency: SUNGLASSES W/CASE NON-PRESCRIPTION GOLD OPERATIONAL WEAR LARGE. 0 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.