Acquisition method (AMC)
1
FSC 4520 × UNIT HEATER,AIR CIRCULATING,STEA
UNIT HEATER,AIR CIRCULATING,STEA
4520-00-498-4174 FSC 4520
NSN 4520-00-498-4174 (also written 4520004984174; NIIN 00-498-4174) is an unit heater, air circulating, stea in Federal Supply Class 4520, Space and Water Heating Equipment. 5 manufacturer part numbers from 3 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-0304 | 6 | Closes in 2d | 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 |
|---|---|
| WIDTH ABGL | INCHES NOMINAL 25.000 |
| HEAT DIRECTING DEVICE ABAZ | ADJUSTABLE LOUVER |
| DEPTH AEJZ | INCHES NOMINAL 28.000 |
| PRIME MOVER TYPE AKDJ | ELECTRIC MOTOR |
| MAXIMUM AIR FLOW RATE ABBD | CUBIC FEET PER MINUTE 790.0 |
| CURRENT RATING IN AMPS AMPS | 0.81 |
| HEATING ELEMENT TYPE BDXJ | HOT WATER COIL |
| CURRENT TYPE ACDC | AC |
| HEAT DELIVERY RATE CQXD | BRITISH THERMAL UNIT 46000.0 |
| VOLTAGE IN VOLTS ELEC | 115.0 |
| PHASE FAAZ | SINGLE |
| FREQUENCY IN HERTZ FREQ | 60.0 |
| HEIGHT HGTH | INCHES NOMINAL 21.750 |
| QUANTITY NMBR | 1 |
| SURFACE TREATMENT SFTT | ZINC |
| SPECIFICATION/STANDARD DATA ZZZK | GOVERNMENT SPECIFICATION 81349--IL-U-17293D TO SH TO |
| NONDEFINITIVE SPEC/STD DATA ZZZT | TYPE 1 AND SIZE 13 |
| HEAT DELIVERY DIRECTION ABAX | HORIZONTAL |
| HEAT DISCHARGE OUTLET TYPE ABAY | ADJUSTABLE |
| MOUNTING TYPE AAXX | CEILING SUSPENDED |
| AIR CIRCULATION DEVICE ABBA | PROPELLER FAN |
| SPEED ADJUSTMENTS ABBB | SINGLE SPEED |
| INCLOSURE MATERIAL CQSJ | STEEL |
| HEAT MEDIUM TYPE ABAM | HOT WATER OR STEAM |
| MAXIMUM PRESSURE LIMIT ABAN | POUNDS PER SQUARE INCH GAGE 25.0 |
| HEAT OUTLET QUANTITY ABAW | 1 |
| OPERATING CONTROL TYPE ALYC | HAND SWITCH |
| CIRCULATED AIR TYPE ABBE | HEATED |
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 |
|---|---|---|
| 68H636SZ13-110VAC60HZ-1PH | 38450 | ENGINEERED COIL COMPANY DBA ENGINEERED COIL CO DIV DRS MARLO COIL |
| 82D35 SIZE 13 | 87103 | EDGE ELECTRONICS CORPORATION DBA MC INTYRE COIL |
| 88H0033SZ13-110VAC60HZ1PH | 38450 | ENGINEERED COIL COMPANY DBA ENGINEERED COIL CO DIV DRS MARLO COIL |
| MIL-U-17293 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
| MILU17293B | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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
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Purchases
0
Total spend
—
—
Last purchased
—
Purchase records
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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-0304 | Oct 29, 2026 | Nov 9, 2026 | 6 | 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 Nov 1, 2026.
- Contract action totals: USAspending, context only.
- Full methodology →
Cite this page
Citation
NSN Explorer. "UNIT HEATER,AIR CIRCULATING,STEA." nsnexplorer.com, https://nsnexplorer.com/nsn/4520-00-498-4174/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4520-00-498-4174/