Acquisition method (AMC)
3
FSC 6640 × FILTER UNIT,MICROPOROUS
FILTER UNIT,MICROPOROUS
6640-01-340-5488 FSC 6640
NSN 6640-01-340-5488 (also written 6640013405488; NIIN 01-340-5488) is a filter unit, microporous in Federal Supply Class 6640, Laboratory Equipment and Supplies. 3 manufacturer part numbers from 2 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 |
|---|---|
| FURNISHED ITEMS ABFF | ABSORBENT PAD |
| FILTRATION RATING IN MICRONS ADNH | ABSOLUTE 5.0 |
| UNIT PACKAGE QUANTITY AGUC | 50 |
| ACCESSORY COMPONENTS AND QUANTITY AKYD | MATCHED WEIGHT POLYVINYL CHLORIDE MEMBRANE FILTER 2; SUPPORT PAD 1; 3 PIECE CASSETTE CASE 1; SEALING PLUGS 2 |
| CONTAINER TYPE ALQG | PACKAGE |
| UNIT TYPE APQB | AEROSOL |
| FILTER DISK SIZE ACCOMMODATED BNMH | MILLIMETERS 37.0 |
| FILTERING AREA BPSH | SQUARE CENTIMETERS NOMINAL 9.0 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY CXCY | FILTER UNIT MICROPOROUS PLAS STYRENE ACRYLONITRILE AEROSOL 50S |
| SPECIAL FEATURES FEAT | MATCHED TO WITHIN 25 MICROGRAMS; USED WITH PERSONAL AIR SAMPLING PUMP |
| MATERIAL MATT | PLASTIC STYRENE AND PLASTIC ACRYLONITRILE |
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 |
|---|---|---|
| 225-8202 | 55659 | SKC INC |
| 91-4-19-55 LAP | 66735 | AIR FORCE MEDICAL LOGISTICS OFFICE |
| F91D146 | 66735 | AIR FORCE MEDICAL LOGISTICS OFFICE |
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
$276.45
Purchases
2
Total spend
$552.85
Oct 15, 2026
Last purchased
4 · 4.0/yr
Purchase records
$1,106
Total demand
$276.45
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 15, 2026 | 1 | $276.45 | $276.45 | SKC INC (55659) | Unknown | Source ↗ |
| Oct 1, 2026 | 1 | $276.40 | $276.40 | PACIFIC STAR CORPORATION (4QNY3) | 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 |
|---|---|---|---|---|
| Oct 1, 2026 | SPE2DH27V0030 ↗ | PACIFIC STAR CORPORATION | — | $276.40 |
| Oct 15, 2026 | SPE2DH27P0108 ↗ | SKC INC | — | $276.45 |
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 34 days from posting to award. Most of that came after quotes closed.
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
SKC INC
last award Oct 2026
PACIFIC STAR CORPORATION
last award Oct 2026
AIR FORCE MEDICAL LOGISTICS OFFICE
no award yet
no awards on record
Listed source SKC INC won 1 of the last 2 awards. PACIFIC STAR CORPORATION won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE2DH-27-T-0007 | Oct 2, 2026 | Oct 8, 2026 | 1 | Expired | View at DIBBS → |
| SPE2DH-26-T-5857 | Aug 7, 2026 | Aug 13, 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: 2026-10-16.
- Full methodology →
Cite this page
Citation
NSN Explorer. "FILTER UNIT,MICROPOROUS." nsnexplorer.com, https://nsnexplorer.com/nsn/6640-01-340-5488/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/6640-01-340-5488/