Acquisition method (AMC)
1
FSC 4520 × HEATER,VENTILATION,DUCT TYPE
HEATER,VENTILATION,DUCT TYPE
4520-00-273-1276 FSC 4520
NSN 4520-00-273-1276 (also written 4520002731276; NIIN 00-273-1276) is a heater, ventilation, duct type in Federal Supply Class 4520, Space and Water Heating Equipment. 5 manufacturer part numbers from 4 suppliers are on record. No purchases are on record yet.
Open for bid
No open solicitations on record for this NSN right now.
Can you win it?
This item is coded as suitable for competitive acquisition (AMC 1).
Suffix (AMSC)
T
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC T: handled under qualified products list procedures. 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 |
|---|---|
| HEAT DIRECTING DEVICE ABAZ | RADIAL DIFFUSER-VERTICAL VANES |
| HEAT MEDIUM TYPE ABAM | HOT WATER OR STEAM |
| HEATING ELEMENT TYPE BDXJ | HOT WATER COIL OR STEAM COIL |
| HEAT DELIVERY DIRECTION ABAX | HORIZONTAL |
| WIDTH ABGL | INCHES NOMINAL 52.750 |
| INCLOSURE MATERIAL CQSJ | STEEL |
| HEIGHT HGTH | INCHES NOMINAL 27.250 |
| SURFACE TREATMENT SFTT | ZINC |
| HEAT OUTLET QUANTITY ABAW | 1 |
| DUCT WIDTH ABAU | INCHES 42.000 |
| SPECIAL FEATURES FEAT | TUBE HAS 90 FINS PER FT.,CONFORMS TO MIL-H-16235C MIL-H-16235C |
| MOUNTING TYPE AAXX | VENTILATION DUCT |
| HEAT DISCHARGE OUTLET TYPE ABAY | STATIONARY |
| MAXIMUM PRESSURE LIMIT ABAN | POUNDS PER SQUARE INCH GAGE 35.0 |
| DUCT HEIGHT ABAT | INCHES 24.250 |
| DEPTH AEJZ | INCHES NOMINAL 7.000 |
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 |
|---|---|---|
| MIL-H-16235 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
| NSTDSIZET35H | 41197 | MODINE MFG CO |
| S3802-66970-35H | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| S3802-66970T35H | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| T35H | 38450 | ENGINEERED COIL COMPANY DBA ENGINEERED COIL CO DIV DRS MARLO COIL |
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
—
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 | |
|---|---|---|---|---|---|
| SPE8E8-26-T-5569 | Sep 11, 2026 | Sep 21, 2026 | 5 | 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.
- Full methodology →
Cite this page
Citation
NSN Explorer. "HEATER,VENTILATION,DUCT TYPE." nsnexplorer.com, https://nsnexplorer.com/nsn/4520-00-273-1276/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4520-00-273-1276/