PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

740-0444Lens Insert,prescription

Eye Safety Systems Inc Div Eye Safety Systems, Inc. a Subsidiary of Oakley Corporation · NSN 6540-01-584-0176 · FSC 6540 · No Item Name Available
Verified by PartsTable
NSN 6540-01-584-0176 — this item is cataloged by the U.S. Government under National Stock Number 6540-01-584-0176. Primary manufacturer part number: 740-0444.
Features
  • Lens Insert,prescription — FSC 6540
  • 4 verified cross-references
  • Primary manufacturer: Eye Safety Systems Inc Div Eye Safety Systems, Inc. a Subsidiary of Oakley Corporation
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Lens Insert,prescription, cataloged under National Stock Number 6540-01-584-0176, is classified within Federal Supply Class 6540 (No Item Name Available) of the Medical, Dental, and Veterinary Equipment group. The primary manufacturer of record is Eye Safety Systems Inc Div Eye Safety Systems, Inc. a Subsidiary of Oakley Corporation. This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: PG.

Technical Specifications
ParameterValue
NSN6540-01-584-0176
Primary Part Number740-0444
Item NameLens Insert,prescription
FSC / FSG6540 / 65 — No Item Name Available
ManufacturerEye Safety Systems Inc Div Eye Safety Systems, Inc. a Subsidiary of Oakley Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssuePG
Verified Substitutes 5
5935-00-505-7869GA800B-2A INTERCHANGEABLE
Adapter,connector
Northrop Grumman Systems Corporation
5821-00-611-3605 INTERCHANGEABLE
Shaft Assy
4730-01-296-40351-708-1 INTERCHANGEABLE
Tee,hose
Lockheed Martin Corp
5365-01-303-160117081 INTERCHANGEABLE
Bushing Blank
Coffin Turbo Pump Inc
5360-01-487-582317081 INTERCHANGEABLE
Spring,helical,extension
B&g Lieberman Co Inc
Cross-Reference Index
Part NumberManufacturer
740-0444 PRIMARY Eye Safety Systems Inc Div Eye Safety Systems, Inc. a Subsidiary of Oakley Corporation (USA)
17081 Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia (USA)
6540NCM104404 Defense Medical Standardization Board (USA)
ESS OAKLEY U-RX PX INSERTS Eye Safety Systems Inc Div Eye Safety Systems, Inc. a Subsidiary of Oakley Corporation (USA)
Related Parts
5935-00-505-7869INTERCHANGEABLE
ADAPTER,CONNECTOR
GA800B-2A
5821-00-611-3605INTERCHANGEABLE
SHAFT ASSY
4730-01-296-4035INTERCHANGEABLE
TEE,HOSE
1-708-1
5365-01-303-1601INTERCHANGEABLE
BUSHING BLANK
17081
5360-01-487-5823INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
17081

Frequently Asked Questions

What is NSN 6540-01-584-0176?

NSN 6540-01-584-0176 is a Lens Insert,prescription, manufactured by Eye Safety Systems Inc Div Eye Safety Systems, Inc. a Subsidiary of Oakley Corporation, classified under FSC 6540 (No Item Name Available). Status: active.

What are the part numbers for NSN 6540-01-584-0176?

NSN 6540-01-584-0176 has 4 cross-referenced part numbers: 740-0444 (Eye Safety Systems Inc Div Eye Safety Systems, Inc. a Subsidiary of Oakley Corporation), 17081 (Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia), 6540NCM104404 (Defense Medical Standardization Board), ESS OAKLEY U-RX PX INSERTS (Eye Safety Systems Inc Div Eye Safety Systems, Inc. a Subsidiary of Oakley Corporation).

What NSN replaces 6540-01-584-0176?

There are 5 known substitutes for 6540-01-584-0176: 5935-00-505-7869, 5821-00-611-3605, 4730-01-296-4035 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 740-0444?

Key specifications for 740-0444: Part Name Assigned by Controlling Agency: LENS INSERT PRESCRIPTION ESS/OAKLEY U-RX 25S; Special Features: ESS/OAKLEY U-RX PRESCRIPTION LENS INSERT WITH NOSEPIECE AND ADAPTER; COMPATIBLE WITH ESS ICE2, ICE NARO, CROSSBOW SPECTACLES, OAKLEY SI M FRAME 2.0 SPECTACLES AND ESS PROFILE NVG GOGGLES. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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