Home · FSC 6540 Ophthalmic Instruments, Equipment, And Supplies · NSN 6540-01-719-7739
NSN 6540-01-719-7739 — Light,Slit,Ophthalmic
NIIN 01-719-7739 · unit of issue EA · AAC L (not stocked, local purchase) · source of supply SMS
NSN 6540-01-719-7739 is the national stock number for a light,slit,ophthalmic in federal supply class 6540 (Ophthalmic Instruments, Equipment, And Supplies). It cross-references to 5 manufacturer part numbers from 6 CAGE codes, including Kowa Optimed Inc, Kowa American Corporation, Defense Logistics Agency Directorate Of Medical Materiel Defense Supply Center Philadelphia; the primary is 1668546. The unit of issue is EA and the FLIS list price is $6,140.90.
The U.S. government has bought this item 12 times on record, 9 of them in the last 24 months, most recently on April 8, 2026 at $4,625.00 each from Phoenix Trading Inc.. The median unit price paid over 36 months is $4,590.00. No seller has confirmed stock of it here in the last 60 days; watching the number is free and the first listing triggers an alert.
5
part numbers from 6 CAGEs
0
open solicitations, all agencies
9
government buys in 24 months · median $4,590.00
0
sellers with confirmed stock
Cross-references
Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.
| Part number | CAGE | Manufacturer | Reference | Variation |
|---|---|---|---|---|
| SL-19 | 6V082 | Kowa Optimed Inc | 3 · Design control (vendor) | 9 · Reference only |
| SL-19 | 9ZUH7 | Kowa American Corporation | 3 · Design control (vendor) | 2 · Fully interchangeable |
| 1668546 | 89875 | Defense Logistics Agency Directorate Of Medical Materiel Defense Supply Center Philadelphia | 5 · Secondary reference | 1 · Not fully interchangeable |
| 6540NCM249697 | 64616 | Defense Medical Standardization Board | 5 · Secondary reference | 1 · Not fully interchangeable |
| SL-19 SLIT LAMP | 55CB9 | The Janz Corp | 5 · Secondary reference | 2 · Fully interchangeable |
| SLKOW-SL19 | 3H2D2 | Optimetrics Inc | 5 · Secondary reference | 2 · Fully interchangeable |
Government demand
Nothing open right now. Last government buy Apr 8, 2026. Watch this NSN and we will email you when it is solicited.
What the government paid
| Date | Vendor | Qty | Unit cost | Amount | Buyer | Reference |
|---|---|---|---|---|---|---|
| Apr 8, 2026 | Phoenix Trading Inc. 4LF36 | 1 | $4,625.00 | Dla | SPE2DS26P1464 | |
| Feb 26, 2026 | S I T Corporation 1MQB3 | 1 | $4,555.00 | Dla | SPE2DS26V3254 | |
| Oct 14, 2025 | Vertex LLC 7GL31 | 1 | $4,740.75 | Dla | SPE2DS26V0443 | |
| Sep 15, 2025 | Szy Holdings, LLC 0AG09 | 1 | $4,925.00 | Dla | SPE2DS25V244E | |
| Sep 10, 2025 | Ams 21st Century Logistics, LLC 7QNH3 | 1 | $4,660.00 | Dla | SPE2DS25V231T | |
| Jul 31, 2025 | Ams 21st Century Logistics, LLC 7QNH3 | 1 | $4,470.00 | Dla | SPE2DS25V138U | |
| Mar 17, 2025 | Ams 21st Century Logistics, LLC 7QNH3 | 1 | $4,400.00 | Dla | SPE2DS25V6785 | |
| Jan 15, 2025 | Allied Defense Industries, LLC 0GD25 | 1 | $4,626.32 | Dla | SPE2DS25P0396 | |
| Jan 15, 2025 | Szy Holdings, LLC 0AG09 | 2 | $4,833.48 | Dla | SPE2DS25P0372 | |
| Sep 27, 2024 | Ams 21st Century Logistics, LLC 7QNH3 | 1 | $3,720.00 | Dla | SPE2DS24V141P | |
| Sep 25, 2024 | Ams 21st Century Logistics, LLC 7QNH3 | 1 | $3,720.00 | Dla | SPE2DS24P1575 | |
| Jul 15, 2024 | Allied Defense Industries, LLC 0GD25 | 1 | $3,471.58 | Dla | SPE2DS24V9383 |
Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 12 buys on record in total.
Sellers with confirmed stock
No seller has confirmed stock on this NSN in the last 60 days. Watch it and we will email you when one does, or request a quote on 1668546.
Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.
DLA management data
- FLIS unit price
- $6,140.90
- Unit of issue
- EA
- Acquisition advice
- L — Not stocked, local purchase
- Source of supply
- SMS
- Effective
- Oct 1, 2025
Item characteristics
- Voltage Rating In Volts
- DC MINIMUM 3.0 AND DC MAXIMUM 4.8
- Mounting Method
- FREE STANDING BASE
- Part Name Assigned By Controlling Agency
- HAND-HELD SLIT LAMP
- Special Features
- SLIT LAMP IS A NON-INVASIVE DEVICE THAT IS ABLE TO ILLUMINATION, MAGNIFICATION AND OBSERVATION THE HUMAN EYE; MAGNIFICATION 10X AND 16X; 3 X AA NI-MH BATTERIES. OPHTHALMIC DIAGNOSTIC INSTRUMENTS DESIG
About this page
An NSN is 13 digits: the 4-digit Federal Supply Class and the 9-digit NIIN. Cross-references come from the federal logistics record; demand from DLA DIBBS, SAM.gov and FPDS; ADs from the Federal Register. Refreshed nightly. Market Pulse shows the whole market.
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