Home · FSC 1660 Aircraft Air Conditioning, Heating, And Pressurizing Equipment · NSN 1660-01-181-4209
NSN 1660-01-181-4209 — Coalescer Assy
NIIN 01-181-4209 · unit of issue EA · AAC Z (insurance item) · source of supply SMS
Buying rhythm
from 13 government buys since 2019
The government has bought this item about every 3 months (irregular, gaps vary ±164%). Last buy Aug 17, 2026. The gaps are too uneven to put a window on the next one. 1 solicitation is open right now.
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.
Used on: F-16 Fighting Falcon · all platforms
NSN 1660-01-181-4209 is the national stock number for a coalescer assy in federal supply class 1660 (Aircraft Air Conditioning, Heating, And Pressurizing Equipment). It cross-references to 4 manufacturer part numbers from 4 CAGE codes, including Honeywell International Inc., Honeywell Aerospace De Mexico, S De Rl De Cv, Keddeg Company; the primary is 1660PL1605318. The federal catalog ties it to the F-16 Fighting Falcon. The unit of issue is EA and the FLIS list price is $171.03.
The U.S. government has bought this item 13 times on record, 7 of them in the last 24 months, most recently on August 17, 2026 at $183.50 each from A. J. Associates Manufacturing & Engineering Co. Inc.. The median unit price paid over 36 months is $183.50. 1 solicitation is open right now, the soonest due October 2, 2026 for 136 EA. 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.
4
part numbers from 4 CAGEs
1
open solicitation, all agencies
7
government buys in 24 months · median $183.50
0
sellers with confirmed stock
Cross-references
Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.
| Part number | CAGE | Manufacturer | Reference | Variation |
|---|---|---|---|---|
| 195778-1 | 70210 | Honeywell International Inc. | 3 · Design control (vendor) | 2 · Fully interchangeable |
| 195778-1 | SCW49 | Honeywell Aerospace De Mexico, S De Rl De Cv | 5 · Secondary reference | 2 · Fully interchangeable |
| 500046 | 0BX85 | Keddeg Company | 5 · Secondary reference | 2 · Fully interchangeable |
| 1660PL1605318 | 9009H | Jednolity Indeks Materialowy - Uniform Material Index | 6 | 9 · Reference only |
| 1660PL1738966 | 9009H | Jednolity Indeks Materialowy - Uniform Material Index | 6 | 9 · Reference only |
Government demand
Open DLA RFQs (DIBBS)
- SPE4A726T791C · 136 EA · due Oct 2, 2026 · Y · AMSC P · DIBBS
What the government paid
| Date | Vendor | Qty | Unit cost | Amount | Buyer | Reference |
|---|---|---|---|---|---|---|
| Aug 17, 2026 | A. J. Associates Manufacturing & Engineering Co. Inc. 3Z260 | 466 | $183.50 | Dla | SPE4A726F9933 | |
| May 14, 2026 | A. J. Associates Manufacturing & Engineering Co. Inc. 3Z260 | 136 | $183.50 | Dla | SPE4A726F6225 | |
| Apr 16, 2026 | A. J. Associates Manufacturing & Engineering Co. Inc. 3Z260 | 136 | $183.50 | Dla | SPE4A726F5299 | |
| Mar 19, 2026 | A. J. Associates Manufacturing & Engineering Co. Inc. 3Z260 | 136 | $183.50 | Dla | SPE4A726F4348 | |
| Dec 19, 2025 | A. J. Associates Manufacturing & Engineering Co. Inc. 3Z260 | 196 | $175.00 | Dla | SPE4A726F2018 | |
| Mar 24, 2025 | A. J. Associates Manufacturing & Engineering Co. Inc. 3Z260 | 259 | $175.00 | Dla | SPE4A725F4668 | |
| Oct 7, 2024 | White Aero Inc 06ZH4 | 1 | $150.00 | Dla | SPE4A025P0067 | |
| Nov 10, 2020 | Honeywell International Inc. 70210 | 180 | $50.09 | Dla | SPE4A721F1130 | |
| Feb 25, 2020 | Honeywell International Inc. 70210 | 180 | $48.95 | Dla | SPE4A720F3551 | |
| Jan 22, 2020 | Honeywell International Inc. 70210 | 180 | $48.95 | Dla | SPE4A720F2871 | |
| Oct 30, 2019 | Honeywell International Inc. 70210 | 180 | $48.95 | Dla | SPE4A720F0845 | |
| Oct 2, 2019 | Honeywell International Inc. 70210 | 180 | $48.95 | Dla | SPE4A720F0023 | |
| Mar 4, 2019 | Honeywell International Inc. 70210 | 240 | $48.95 | Dla | SPE4A719F5769 |
Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 13 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 1660PL1605318.
Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.
DLA management data
- FLIS unit price
- $171.03
- Unit of issue
- EA
- Acquisition advice
- Z — Insurance item
- Source of supply
- SMS
- Effective
- Oct 1, 2025
Item characteristics
- End Item Identification
- F-16 ACFT
- General Characteristics Item Description
- APPROX O/A DIMS 8.84 IN. LG,6.00 IN. DIA
Related stock numbers
Other NSNs filed under the same part numbers.
- 00-554-9155 · Spark Plug
- 00-834-7645 · Resistor,Thermal
- 01-186-0976 · Window,Vehicular
- 01-597-6739 · Adapter,Straight,Pipe To Boss
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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