Home · FSC 6540 Ophthalmic Instruments, Equipment, And Supplies · NSN 6540-01-524-9782

NSN 6540-01-524-9782 — Chart,Vision Acuity Testing

NIIN 01-524-9782 · unit of issue EA · AAC L (not stocked, local purchase) · source of supply SMS

Buying rhythm

from 18 government buys since 2017

The government has bought this item about every 4 months (irregular, gaps vary ±104%). Last buy Sep 23, 2026. The gaps are too uneven to put a window on the next one.

How well this works: for irregular items, "next buy about one typical gap after the last, give or take 151 days" caught the actual next buy 31% of the time across 21,161 past buys, against 24% for a fixed "one year later" guess. A rhythm, not a schedule: DLA buys when stock and demand say so. Every item due for a buy now.

NSN 6540-01-524-9782 is the national stock number for a chart,vision acuity testing in federal supply class 6540 (Ophthalmic Instruments, Equipment, And Supplies). It cross-references to 3 manufacturer part numbers from 2 CAGE codes, including Western Ophthalmics Corp, Defense Logistics Agency Directorate Of Medical Materiel Defense Supply Center Philadelphia; the primary is 04-1447. The unit of issue is EA and the FLIS list price is $42.11.

The U.S. government has bought this item 21 times on record, 6 of them in the last 24 months, most recently on September 23, 2026 for $587 from Szy Holdings, LLC. The median unit price paid over 36 months is $26.50. 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.

3

part numbers from 2 CAGEs

0

open solicitations, all agencies

6

government buys in 24 months · median $26.50

0

sellers with confirmed stock

Watch NSN 6540-01-524-9782: an email the morning the government solicits or buys it, or an AD names it. Free.
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Cross-references

Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.

Part numberCAGEManufacturerReferenceVariation
OS-44711GYB0Western Ophthalmics Corp3 · Design control (vendor)2 · Fully interchangeable
04-144789875Defense Logistics Agency Directorate Of Medical Materiel Defense Supply Center Philadelphia5 · Secondary reference1 · Not fully interchangeable
ROSENBAUM POCKET VISION1GYB0Western Ophthalmics Corp5 · Secondary reference1 · Not fully interchangeable

Government demand

Nothing open right now. Last government buy Sep 23, 2026. Watch this NSN and we will email you when it is solicited.

What the government paid

DateVendorQtyUnit costAmountBuyerReference
Sep 23, 2026Szy Holdings, LLC 0AG09$587DlaSPE2DS26V010S » Award/Basic Package View
May 13, 2026Ars Sales & Services LLC 1KA5920$22.75DlaSPE2DS26V5624
May 11, 2026Ars Sales & Services LLC 1KA5910$22.80DlaSPE2DS26V5526
Mar 11, 2026Szy Holdings, LLC 0AG0920$25.00DlaSPE2DS26P1197
Feb 18, 2026Szy Holdings, LLC 0AG0960$24.00DlaSPE2DS26P0870
Jan 21, 2025Szy Holdings, LLC 0AG098$29.00DlaSPE2DS25V3914
May 13, 2024Szy Holdings, LLC 0AG096$29.00DlaSPE2DS24V6835
Nov 13, 2023Szy Holdings, LLC 0AG0910$28.00DlaSPE2DS24V1021
Oct 3, 2023Szy Holdings, LLC 0AG093$28.75DlaSPE2DS24V0092
Sep 13, 2023Szy Holdings, LLC 0AG094$28.00DlaSPE2DS23V063P
Apr 28, 2023Szy Holdings, LLC 0AG095$25.88DlaSPE2DS23V5567
Feb 28, 2023Szy Holdings, LLC 0AG092$25.00DlaSPE2DS23V3132
Aug 21, 2020Szy Holdings, LLC 0AG093$22.25DlaSPE2DS20V9045
Aug 13, 2019Szy Holdings, LLC 0AG092$11.00DlaSPE2DS19P2924
Jul 21, 2019Szy Holdings, LLC 0AG0939$6.25DlaSPE2DS19P2646
May 20, 2019Ars Sales & Services LLC 1KA593$18.80DlaSPE2DS19V6249
Apr 24, 2019Szy Holdings, LLC 0AG091$22.18DlaSPE2DS19V5624
Jan 18, 2019Szy Holdings, LLC 0AG091$21.95DlaSPE2DS19V2720
Sep 10, 2018Szy Holdings, LLC 0AG094$12.88DlaSPE2DS18V076D
Aug 3, 2017Ars Sales & Services LLC 1KA595$12.20DlaSPE2DS17V8599

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 21 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 04-1447.

Request 04-1447

No account needed. Goes to the sellers who carry this number or its family.

Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.

DLA management data

FLIS unit price
$42.11
Unit of issue
EA
Acquisition advice
L — Not stocked, local purchase
Source of supply
SMS
Effective
Oct 1, 2025

Item characteristics

Overall Length
INCHES NOMINAL 3.500
Overall Width
INCHES NOMINAL 6.500
Test Designation
ROSENBAUM POCKET VISION SCREENER
Part Name Assigned By Controlling Agency
CHART VISION ACUITY TESTING POCKET SIZE (1) PER PACKAGE
Special Features
POCKET EYE CHART; PROVIDES 20/800 DISTANCE EQUIVALENT TESTING WHEN HELD AT A DISTANCE OF 14 INCHES; PRINTED ON DURABLE PLASTIC; INCLUDES MATCHING 20/200 JAEGER NOTATION; PUPIL DIAMETER GAUGE WITH BOTH
Material
OVERALL PLASTIC

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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