Acquisition method (AMC)
4
FSC 6540 × LIGHT,SLIT,OPHTHALMIC
LIGHT,SLIT,OPHTHALMIC
6540-01-719-7739 FSC 6540
NSN 6540-01-719-7739 (also written 6540017197739; NIIN 01-719-7739) is a light, slit, ophthalmic in Federal Supply Class 6540, Ophthalmic Instruments, Equipment, and Supplies. 6 manufacturer part numbers from 6 suppliers are on record. No purchases are on record yet.
Open for bid
No open solicitations on record for this NSN right now.
Can you win it?
This item is coded to be bought directly from the actual manufacturer (AMC 4).
Suffix (AMSC)
Z
Competition
Coded for a named source
AMC 4: buy directly from the actual manufacturer, first time. AMSC Z: a commercial, nondevelopmental or off-the-shelf item. The codes describe the item's status on record, not any one solicitation. What the codes mean
What it is — can you make it?
Dimensions, the FLIS specification requirements, and the manufacturer part numbers already qualified against this NSN.
Specifications
From the federal catalog (DLA FLIS / PUB LOG) — what your part has to meet. Cited specification documents can be looked up in ASSIST Quick Search ↗, DoD's public spec repository — copy the document number in.
| Requirement | Value |
|---|---|
| VOLTAGE RATING IN VOLTS ASXH | DC MINIMUM 3.0 AND DC MAXIMUM 4.8 |
| MOUNTING METHOD AXGY | FREE STANDING BASE |
| PART NAME ASSIGNED BY CONTROLLING AGENCY CXCY | HAND-HELD SLIT LAMP |
| SPECIAL FEATURES FEAT | 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 DESIGNED FOR EXAMINING THE EYE (MOSTLY THE ANTERIOR PART OF THE EYE) USING AN ILLUMINATION SYSTEM COMBINED WITH A BINOCULAR MICROSCOPE. THE INSTRUMENTS USUALLY CONSIST OF ILLUMINATION SOURCES WITH A MECHANISM THAT PROVIDES A SLIT BEAM OF LIGHT INTO THE EYE WITH DIFFERENT TYPES OF ILLUMINATION (E.G., DIRECT OR INDIRECT, FOCAL OR DIFFUSE, BACKGROUND ILLUMINATION), A BINOCULAR MICROSCOPE FOR VIEWING THE MAGNIFIED SLIT IMAGE, AND A CONTROL COMPONENT FOR ADJUSTING THE FOCUS OF THE MICROSCOPE AND THE SLIT (E.G., SLIT ROTATION, SLIT WIDTH); SOME ALSO HAVE REFRACTION MIRRORS TO DIRECT LIGHT TO A CAMERA MOUNTED ABOVE THE MICROSCOPE. SLIT LAMPS PROVIDE A MAGNIFIED VIEW OF EYE STRUCTURES (E.G., EYELID, SCLERA, IRIS, CRYSTALLINE LENS, CORNEA). |
Manufacturer part numbers
Commercial part numbers cross-referenced to this NSN in the federal catalog — the parts that have been accepted as satisfying this stock number, and who makes them.
| Part number | CAGE | Manufacturer |
|---|---|---|
| 1668546 | 89875 | DEFENSE LOGISTICS AGENCY DIRECTORATE OF MEDICAL MATERIEL DEFENSE SUPPLY CENTER PHILADELPHIA |
| 6540NCM249697 | 64616 | DEFENSE MEDICAL STANDARDIZATION BOARD |
| SL-19 | 6V082 | KOWA OPTIMED INC |
| SL-19 | 9ZUH7 | KOWA AMERICAN CORPORATION DIV VISION SYSTEMS DIVISION |
| SL-19 SLIT LAMP | 55CB9 | THE JANZ CORP |
| SLKOW-SL19 | 3H2D2 | OPTIMETRICS INC DBA OPTIMETRICS INC |
What it pays — so you can quote
The government's own price and demand record for this NSN — what past awards cleared at, so you know where to land your quote.
Latest unit price
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Purchases
0
Total spend
—
—
Last purchased
—
Purchase records
—
Total demand
—
Latest award total
Purchase history
No priced purchases on record for this NSN yet.
Related contract actions
Contract action totals, not unit prices — obligation amounts from USAspending for related awards, shown for context only. These do not appear on the price chart above.
No related contract actions on record.
Demand history
Every solicitation we've indexed for this NSN, open and closed — 1 on record. Closed RFQs (expired, cancelled, or awarded) stay here as a record of past demand; they never get removed.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE2DS-26-T-430J | Sep 15, 2026 | Sep 21, 2026 | 1 | Expired | View at DIBBS → |
Open RFQs on DIBBS → DIBBS award history ↗
About this data
- Unit prices: DLA DIBBS award records — every row links to its government record.
- AMSC: latest observed value from DIBBS solicitation history as of Oct 10, 2026.
- Contract action totals: USAspending, context only.
- Full methodology →
Cite this page
Citation
NSN Explorer. "LIGHT,SLIT,OPHTHALMIC." nsnexplorer.com, https://nsnexplorer.com/nsn/6540-01-719-7739/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/6540-01-719-7739/