Acquisition method (AMC)
1
FSC 4520 × HEATING ELEMENT,ELECTRICAL,IMMER
HEATING ELEMENT,ELECTRICAL,IMMER
4520-00-740-3428 FSC 4520
NSN 4520-00-740-3428 (also written 4520007403428; NIIN 00-740-3428) is a heating element, electrical, immer in Federal Supply Class 4520, Space and Water Heating Equipment. 5 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Aug 2026.
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)
P
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC P: the government does not own the rights to the data needed for more sources. 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 |
|---|---|
| ELEMENT QUANTITY BHHK | 3 |
| BODY STYLE AAQL | — |
| TERMINAL QUANTITY AARA | 6 |
| HEAT QUANTITY ABNR | 1 |
| LENGTH ABRY | INCHES NOMINAL 12.000 |
| MOUNTING METHOD STYLE AALX | — |
| HOLE DIAMETER AAUB | INCHES NOMINAL 0.406 |
| OVERALL LENGTH ABHP | INCHES NOMINAL 14.875 |
| ELEMENT RADIATION SPECTRUM ABJA | NONINFRARED |
| ELEMENT CONNECTION STYLE ABJS | — |
| TERMINAL LENGTH ABJT | INCHES NOMINAL 0.812 |
| BOLT CIRCLE DIAMETER ABKG | INCHES NOMINAL 4.875 |
| FLANGE DIAMETER ABKK | INCHES NOMINAL 5.750 |
| HOLE OR SLOT QUANTITY ABKT | 6 |
| FLANGE THICKNESS ABKU | INCHES NOMINAL 0.375 |
| NOMINAL THREAD SIZE CQJX | STUD INCHES 0.190 |
| MAXIMUM WATTAGE RATING IN WATTS AZQH | 6000.0 |
| THREAD QUANTITY CQRN | STUD PER INCH 32.0 |
| VOLTAGE IN VOLTS AND CURRENT TYPE CSBH | SINGLE VOLTAGE AC 440.0 |
| PHASE FAAZ | SINGLE VOLTAGE THREE |
| FREQUENCY IN HERTZ FREQ | 60.0 |
| MATERIAL MATT | RESISTANCE WIRE NICKEL ALLOY |
| MATERIAL MATT | SHEATH COPPER |
| THREAD SERIES DESIGNATOR THSD | STUD UNF |
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 |
|---|---|---|
| 155-043628-001 | 07131 | CHROMALOX INC |
| 17714PC11 | 19857 | THE ELECTRIC HEATER CO DBA HUBBELL ELECTRIC HEATER CO. |
| 5G6443 | 19857 | THE ELECTRIC HEATER CO DBA HUBBELL ELECTRIC HEATER CO. |
| 5G6443 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH |
| 5G6443ES | 19857 | THE ELECTRIC HEATER CO DBA HUBBELL ELECTRIC HEATER CO. |
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
$4,722.83
Purchases
1
Total spend
$330,598
Aug 19, 2026
Last purchased
2 · 2.0/yr
Purchase records
$661,196
Total demand
$4,722.83
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Aug 19, 2026 | 70 | $4,722.83 | $330,598 | ARGO TURBOSERVE CORPORATION DIV ARGO TURBOSERVE CORP. (7Y333) | 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 |
|---|---|---|---|---|
| Aug 19, 2026 | SPE8E926P1348 ↗ | ARGO TURBOSERVE CORPORATION DIV ARGO TURBOSERVE CORP. | — | $330,598 |
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.
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
ARGO TURBOSERVE CORPORATION DIV ARGO TURBOSERVE CORP.
last award Aug 2026
CHROMALOX INC
no award yet
no awards on record
Listed source THE ELECTRIC HEATER CO DBA HUBBELL ELECTRIC HEATER CO.
no award yet
no awards on record
Listed source ZF INDUSTRIEANTRIEBE WITTEN GMBH
no award yet
no awards on record
Listed source ARGO TURBOSERVE CORPORATION DIV ARGO TURBOSERVE CORP. won the only award on record. ARGO TURBOSERVE CORPORATION DIV ARGO TURBOSERVE CORP. won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE8E9-26-T-3242 | Jul 23, 2026 | Aug 6, 2026 | 70 | 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: 2026-11-03.
- Full methodology →
Cite this page
Citation
NSN Explorer. "HEATING ELEMENT,ELECTRICAL,IMMER." nsnexplorer.com, https://nsnexplorer.com/nsn/4520-00-740-3428/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4520-00-740-3428/