Acquisition method (AMC)
3
FSC 6550 × CHLORINE TEST TABLETS
CHLORINE TEST TABLETS
6550-01-425-7957 FSC 6550
NSN 6550-01-425-7957 (also written 6550014257957; NIIN 01-425-7957) is a chlorine test tablets in Federal Supply Class 6550, In Vitro Diagnostic Substances, Reagents, Test Kits and Sets. 5 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Oct 2026.
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 3).
Suffix (AMSC)
Z
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later 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 |
|---|---|
| USAGE DESIGN ALCD | DIETHYL-P-PHENYLENE DIAMINE (DPD) NO. 1R TABLETS USED FOR DETERMINING OF CHLORINE PPM OF FLUIDS. |
| PART NAME ASSIGNED BY CONTROLLING AGENCY CXCY | CHLORINE TEST TABLE IETHYL-P-PHENYLENE DIAMINE (DPD) NO 1R TAB |
| SPECIAL FEATURES FEAT | UNIT QTY 100. |
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 |
|---|---|---|
| 1224K35 | 59728 | ARTHUR H. THOMAS COMPANY |
| 22278642 | 22527 | FISHER SCIENTIFIC COMPANY L.L.C. |
| 6999-J | 34807 | LA MOTTE CHEMICAL PRODUCTS CO INC, THE DBA LA MOTTE COMPANY |
| 6999A-J | 34807 | LA MOTTE CHEMICAL PRODUCTS CO INC, THE DBA LA MOTTE COMPANY |
| 9864H20 | 59728 | ARTHUR H. THOMAS COMPANY |
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
$15.85
Purchases
2
Total spend
$809.72
Oct 1, 2026
Last purchased
7 · 7.0/yr
Purchase records
$1,757
Total demand
$15.85
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 1, 2026 | 50 | $15.85 | $792.50 | ARS SALES & SERVICES LLC (1KA59) | Unknown | Source ↗ |
| Sep 17, 2026 | 1 | $17.22 | $17.22 | SZY HOLDINGS, LLC DBA SZY HOLDINGS LLC (0AG09) | Unknown | Source ↗ |
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.
| Action date | Award # | Recipient | Agency | Obligation |
|---|---|---|---|---|
| Aug 5, 2026 | SPE2DS26V8475 ↗ | MIDLAND SCIENTIFIC INC | — | $17.25 |
| Sep 16, 2026 | SPE2DS26V9956 ↗ | SZY HOLDINGS, LLC DBA SZY HOLDINGS LLC | — | $19.95 |
| Sep 16, 2026 | SPE2DS26P3122 ↗ | SZY HOLDINGS, LLC DBA SZY HOLDINGS LLC | — | $100.14 |
| Sep 17, 2026 | SPE2DS26P3150 ↗ | SZY HOLDINGS, LLC DBA SZY HOLDINGS LLC | — | $17.22 |
| Oct 1, 2026 | SPE2DS27V0056 ↗ | ARS SALES & SERVICES LLC | — | $792.50 |
Demand history
Every solicitation we've indexed for this NSN, open and closed — 2 on record. Closed RFQs (expired, cancelled, or awarded) stay here as a record of past demand; they never get removed.
Buying rhythm
How often does the government buy this item, and how long since the last time? Every solicitation and award on one line.
- Solicitation posted
- Award made
Dot size shows quantity. A faint bar joins a solicitation to the award made against it.
Time from solicitation to award
How long does a buy take from posting to award? One bar per past award that matches a solicitation.
- Open for quotes
- Closed, awaiting award
The typical buy took 10 days from posting to award.
Who wins this item
Does one supplier win this every time, and are the winners on the listed-source list? One dot per award.
- Award in the last 2 years
- Older award
ARS SALES & SERVICES LLC
last award Oct 2026
SZY HOLDINGS, LLC DBA SZY HOLDINGS LLC
last award Sep 2026
ARTHUR H. THOMAS COMPANY
no award yet
no awards on record
Listed source FISHER SCIENTIFIC COMPANY L.L.C.
no award yet
no awards on record
Listed source LA MOTTE CHEMICAL PRODUCTS CO INC, THE DBA LA MOTTE COMPANY
no award yet
no awards on record
Listed source ARS SALES & SERVICES LLC won 1 of the last 2 awards. ARS SALES & SERVICES LLC and 1 other won without being listed sources.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE2DS-26-T-468B | Sep 25, 2026 | Sep 30, 2026 | 50 | Expired | View at DIBBS → |
| SPE2DS-26-T-395A | Sep 3, 2026 | Sep 8, 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.
- Data last refreshed: 2026-11-06.
- Full methodology →
Cite this page
Citation
NSN Explorer. "CHLORINE TEST TABLETS." nsnexplorer.com, https://nsnexplorer.com/nsn/6550-01-425-7957/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/6550-01-425-7957/