Acquisition method (AMC)
1
FSC 4520 × HEATER,DUCT TYPE,STATIONARY
HEATER,DUCT TYPE,STATIONARY
4520-01-198-0737 FSC 4520
NSN 4520-01-198-0737 (also written 4520011980737; NIIN 01-198-0737) is a heater, duct type, stationary in Federal Supply Class 4520, Space and Water Heating Equipment. 6 manufacturer part numbers from 4 suppliers are on record. The government has 1 open solicitation for it.
Open for bid
1 open solicitation on record right now — quantity, close date, and where to submit.
| Solicitation | Qty | Status | |
|---|---|---|---|
| SPE8E8-27-T-0210 | 3 | Closes in 7d | Bid → |
Can you win it?
This item is coded as suitable for competitive acquisition (AMC 1).
Suffix (AMSC)
G
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC G: the government has a complete data package and the rights to use it. 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 |
|---|---|
| MOUNTING TYPE AAXX | VENTILATION DUCT |
| HEAT MEDIUM TYPE ABAM | AIR |
| WIDTH ABGL | INCHES NOMINAL 16.000 |
| CURRENT TYPE ACDC | AC |
| DEPTH AEJZ | INCHES NOMINAL 6.000 |
| OPERATING CONTROL TYPE ALYC | THERMOSTATIC |
| CURRENT RATING IN AMPS AMPS | 6.6 |
| HEATING ELEMENT TYPE BDXJ | ELECTRIC NONIMMERSION |
| INCLOSURE MATERIAL CQSJ | STEEL CORROSION RESISTING |
| HEAT DELIVERY RATE CQXD | BRITISH THERMAL UNIT 9894.8 |
| VOLTAGE IN VOLTS ELEC | 440.0 |
| PHASE FAAZ | THREE |
| FREQUENCY IN HERTZ FREQ | 60.0 |
| HEIGHT HGTH | INCHES NOMINAL 6.250 |
| SURFACE TREATMENT SFTT | PAINT |
| SPECIFICATION/STANDARD DATA ZZZK | GOVERNMENT SPECIFICATION 81349--IL-H-22594 |
| NONDEFINITIVE SPEC/STD DATA ZZZT | SIZE 22EH AND TYPE H |
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 |
|---|---|---|
| 106-056816-009 | 65586 | CHROMALOX INC DBA CHROMALOX PRECISION HEAT AND CONTROL, INC |
| 210-18977-41 | 74924 | INDEECO LLC DBA INDEECO |
| EH22H | 17032 | VALAD ELECTRIC HEATING CORP. |
| MIL-H-22594 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
| MIL-PRF-22594B | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
| TFZ-22H | 74924 | INDEECO LLC DBA INDEECO |
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
—
Purchases
0
Total spend
—
—
Last purchased
—
Purchase records
—
Total demand
—
Latest award total
Purchase history
No priced purchases on record for this NSN yet.
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.
No related contract actions on record.
Demand history
Every solicitation we've indexed for this NSN, open and closed — 1 on record. Closed RFQs (expired, cancelled, or awarded) stay here as a record of past demand; they never get removed.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE8E8-27-T-0210 | Oct 15, 2026 | Oct 26, 2026 | 3 | Open | 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 15, 2026.
- Contract action totals: USAspending, context only.
- Full methodology →
Cite this page
Citation
NSN Explorer. "HEATER,DUCT TYPE,STATIONARY." nsnexplorer.com, https://nsnexplorer.com/nsn/4520-01-198-0737/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4520-01-198-0737/