Type a 13-digit NSN, a 9-digit NIIN, a manufacturer part number, or a category name such as “gasket”.

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Open demand × Water Purification and Sewage Treatment Equipment

Water Purification Equipment FSC 4610

Open solicitations in Federal Supply Class 4610 — real requests for quote a supplier can bid on today, linked to the official DIBBS record for each one — plus the ones we've already recorded as they closed. Nothing here gets deleted when it expires: this category's demand history grows every time an RFQ closes.

16
Open solicitations
12
Closing within 7 days
1,274
Total open quantity
119
Tracked all-time (103 closed)

Closing dates and quantities

Closing calendar

What closes when? Solicitations by closing date for the next 14 days.

  • Closes within 7 days
  • Closes later
246810Nov 6Nov 8Nov 10Nov 12Nov 14Nov 16Nov 18closing date

Counts as of Nov 6, 2026. Weekends are near zero because DLA sets weekday deadlines.

Bid-window map

Which open solicitations are large, and how long is left? One mark per solicitation.

  • Coded for competition
  • Coded for a named source
  • Not coded
1101001,000today7d14dthis weekdays until the solicitation closesquantity requested (log scale)

Open parts

4610-01-022-9970

CARTRIDGE,WATER DEMINERALIZER,IO

Open · closes today 750 units Named source

2 solicitations (1 open · 1 closed)

4610-01-517-6072

FILTER ELEMENT,WATER PURIFICATIO

Open · closes in 3d 15 units Competed

1 solicitation (1 open · 0 closed)

4610-01-517-6621

FILTER ELEMENT,WATER PURIFICATIO

Open · closes in 3d 148 units Named source

3 solicitations (1 open · 2 closed)

4610-01-682-5827

FILTER BODY,WATER PURIFICATION

Open · closes in 3d 14 units Named source

2 solicitations (1 open · 1 closed)

4610-01-195-0427

BRACKET ASSEMBLY,BROMINATOR

Open · closes in 3d 5 units Named source

1 solicitation (1 open · 0 closed)

4610-01-670-6508

FILTER UNIT,WATER PURIFICATION,U

Open · closes in 3d 56 units Competed

1 solicitation (1 open · 0 closed)

4610-01-527-3762

RO SIMULATOR

Open · closes in 3d 100 units Competed

1 solicitation (1 open · 0 closed)

4610-01-723-3097

FILTER,WATER PURIFICATION

Open · closes in 3d 19 units Named source

1 solicitation (1 open · 0 closed)

4610-01-671-4694

FILTER,WATER PURIFICATION

Open · closes in 3d 1 units Named source

1 solicitation (1 open · 0 closed)

4610-01-453-5796

DEMINERALIZER,WATER,ION EXCHANGE

Open · closes in 10d 1 units Named source

1 solicitation (1 open · 0 closed)

4610-01-620-9860

OXY REMOVE CARTRIDG

Open · closes in 10d 1 units Named source

9 solicitations (1 open · 8 closed)

4610-01-535-2541

MEMBRANE

Open · closes in 10d 164 units Named source

1 solicitation (1 open · 0 closed)

4610-00-372-0592

DESALTER KIT,SEA WA

Closed · last Oct 30, 2026 — units Named source

2 solicitations (0 open · 2 closed)

4610-00-678-3342

FEEDER,CHEMICAL SOLUTION,WATER P

Closed · last Oct 26, 2026 — units Competed

1 solicitation (0 open · 1 closed)

4610-01-313-6086

DEMINERALIZER,WATER,ION EXCHANGE

Closed · last Oct 26, 2026 — units Named source

2 solicitations (0 open · 2 closed)

4610-01-546-9419

FILTER ASSEMBLY,WATER PURIFICATI

Closed · last Oct 26, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-717-9837

FILTER,WATER PURIFICATION

Closed · last Oct 19, 2026 — units Named source

2 solicitations (0 open · 2 closed)

4610-01-396-1459

FILTER ELEMENT,REVERSE OSMOSIS

Closed · last Oct 19, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-396-1461

FILTER ELEMENT,REVERSE OSMOSIS

Closed · last Oct 19, 2026 — units Named source

2 solicitations (0 open · 2 closed)

4610-01-276-5085

CARTRIDGE,WATER DEMINERALIZER,IO

Closed · last Oct 16, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-697-9444

FILTER,WATER PURIFICATION

Closed · last Oct 16, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-414-2298

FILTER ASSEMBLY,WATER PURIFICATI

Closed · last Oct 15, 2026 — units Competed

15 solicitations (0 open · 15 closed)

4610-01-523-7051

FILTER ELEMENT,REVERSE OSMOSIS

Closed · last Oct 13, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-604-8920

HYPOCHLORINATION UNIT,WATER PURI

Closed · last Oct 13, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-305-2710

FEEDER,CHEMICAL SOLUTION,WATER P

Closed · last Oct 13, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-526-8759

FILTER UNIT,WATER PURIFICATION,U

Closed · last Oct 13, 2026 — units Competed

1 solicitation (0 open · 1 closed)

4610-01-657-3442

SIMULAR,WITH HOLE

Closed · last Oct 13, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-464-4888

FILTER,WATER PURIFICATION

Closed · last Oct 13, 2026 — units Competed

2 solicitations (0 open · 2 closed)

4610-00-776-0688

CARTRIDGE,OXYGEN REMOVAL

Closed · last Oct 8, 2026 — units Competed

1 solicitation (0 open · 1 closed)

4610-01-589-8131

FILTER ELEMENT,REVERSE OSMOSIS

Closed · last Oct 5, 2026 — units Named source

2 solicitations (0 open · 2 closed)

4610-01-589-5480

FILTER ELEMENT,WATER PURIFICATIO

Closed · last Oct 5, 2026 — units Named source

2 solicitations (0 open · 2 closed)

4610-00-998-8279

CARTRIDGE,WATER DEMINERALIZER,IO

Closed · last Oct 5, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-714-8561

MODIFICATION KIT,WATER TREATMENT

Closed · last Oct 2, 2026 — units Named source

2 solicitations (0 open · 2 closed)

4610-01-030-5372

BAG,RESIN RETENTION

Closed · last Oct 1, 2026 — units Competed

1 solicitation (0 open · 1 closed)

4610-01-467-1504

FILTER ELEMENT,WATER PURIFICATIO

Closed · last Oct 1, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-511-3730

DEMINERALIZER,WATER,ION EXCHANGE

Closed · last Sep 28, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-215-8807

TANK,FEEDER,CHEMICAL SOLUTION

Closed · last Sep 28, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-657-6515

VESSEL ASSEMBLY,REVERSE OSMOSIS

Closed · last Sep 28, 2026 — units Named source

2 solicitations (0 open · 2 closed)

4610-01-510-0822

KIT CHARGING,DESURG

Closed · last Sep 28, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-589-5256

NOZZLE,PERMEATE PLUG

Closed · last Sep 28, 2026 — units Named source

2 solicitations (0 open · 2 closed)

4610-01-657-7633

FILTER,WATER PURIFICATION

Closed · last Sep 28, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-589-5272

PLATE,SEALING

Closed · last Sep 28, 2026 — units Named source

2 solicitations (0 open · 2 closed)

4610-01-524-3223

WATER SOFTENER UNIT

Closed · last Sep 28, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-527-3761

RO SIMULATOR

Closed · last Sep 25, 2026 — units Competed

1 solicitation (0 open · 1 closed)

4610-01-691-0729

HEAD,WATER DEMINERALIZER,ION EXC

Closed · last Sep 23, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-689-8259

CASE,WATER PURIFICATION KIT

Closed · last Sep 23, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-396-1460

FILTER ELEMENT,REVERSE OSMOSIS

Closed · last Sep 20, 2026 — units Named source

2 solicitations (0 open · 2 closed)

4610-01-229-9014

FEEDER,CHEMICAL SOLUTION,WATER P

Closed · last Sep 17, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-465-7161

FILTER ELEMENT,WATER PURIFICATIO

Closed · last Sep 14, 2026 — units Named source

2 solicitations (0 open · 2 closed)

4610-01-561-5517

CHLORINE PROBE ASSY

Closed · last Sep 14, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-302-7494

BRACKISH WATER ELEMENT

Closed · last Sep 14, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-396-1465

FILTER ELEMENT,REVERSE OSMOSIS

Closed · last Sep 14, 2026 — units Competed

1 solicitation (0 open · 1 closed)

4610-01-526-8760

FILTER UNIT,WATER PURIFICATION,U

Closed · last Sep 14, 2026 — units Competed

1 solicitation (0 open · 1 closed)

4610-01-527-4977

CHEMICAL MIXER

Closed · last Sep 14, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-569-8766

FILTER BODY,WATER PURIFICATION

Closed · last Sep 14, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-621-0909

FILTER ASSEMBLY,WATER PURIFICATI

Closed · last Sep 14, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-679-9169

WATER PURIFICATION UNIT,FRAME MO

Closed · last Sep 14, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-674-5835

FILTER ELEMENT,WATER PURIFICATIO

Closed · last Sep 14, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-00-478-5250

CARTRIDGE,WATER DEMINERALIZER,IO

Closed · last Sep 14, 2026 — units Competed

1 solicitation (0 open · 1 closed)

4610-01-482-5907

FILTER ELEMENT,REVERSE OSMOSIS

Closed · last Sep 11, 2026 — units

1 solicitation (0 open · 1 closed)

4610-01-314-9154

FEEDER,CHEMICAL SOLUTION,WATER P

Closed · last Sep 9, 2026 — units Named source

2 solicitations (0 open · 2 closed)

4610-01-589-4989

NOZZEL,PERMEATE OUT

Closed · last Aug 31, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-621-0034

FLW SENSOR

Closed · last Aug 28, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-589-4999

THRUST CONE

Closed · last Aug 25, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-589-4991

ADAPTER,MEMBRANE

Closed · last Aug 17, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-632-3173

FILTER ELEMENT,REVERSE OSMOSIS

Closed · last Aug 17, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-641-7741

FILTER ELEMENT,WATER PURIFICATIO

Closed · last Aug 17, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-592-3060

FILTER ELEMENT,REVERSE OSMOSIS

Closed · last Aug 17, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-598-6629

FILTER ELEMENT,WATER PURIFICATIO

Closed · last Aug 17, 2026 — units Named source

1 solicitation (0 open · 1 closed)

4610-01-653-9254

FILTER,WATER PURIFICATION

Closed · last Aug 10, 2026 — units Named source

1 solicitation (0 open · 1 closed)

Cite this page
Citation

NSN Explorer. "Water Purification Equipment FSC 4610." nsnexplorer.com, https://nsnexplorer.com/open/4610/. Data as of November 6, 2026.

Link

https://nsnexplorer.com/open/4610/