Acquisition method (AMC)
3
FSC 4520 × FEED HEATER ASSY
FEED HEATER ASSY
4520-01-512-9450 FSC 4520
NSN 4520-01-512-9450 (also written 4520015129450; NIIN 01-512-9450) is a feed heater assy in Federal Supply Class 4520, Space and Water Heating Equipment. 3 manufacturer part numbers from 2 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-0152 | 18 | Closes in 7d | Bid → |
Can you win it?
This item is coded to be bought directly from the actual manufacturer (AMC 3).
Suffix (AMSC)
D
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC D: the data needed to compete the part is unavailable or cannot be obtained economically. 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 |
|---|---|
| END ITEM IDENTIFICATION AGAV | VIRGINIA CLASS SSN |
| SPECIAL FEATURES FEAT | INTERCHANGABLE WITH 4520-01-512-9031, EXCESS HEATER ASSY |
| GENERAL CHARACTERISTICS ITEM DESCRIPTION TEXT | WELDED HEATER WELL; INCLUDES 2 TEMPERATURE SENSORS (5905-01-512-5896 & 5905-01-512-5899) AND ONE HEATER ELEMENT (4540-01-287-0786) |
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 |
|---|---|---|
| S9515-AL-MMA-010, 7-43 ITEM 10 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| S9515-AL-MMA-010, 7-45, ITEM 1 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| SV78999-1 | 73030 | HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE |
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 — 2 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-0152 | Oct 14, 2026 | Oct 26, 2026 | 18 | Open | View at DIBBS → |
| SPE8E8-27-T-0047 | Oct 2, 2026 | Oct 13, 2026 | 18 | Cancelled | 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. "FEED HEATER ASSY." nsnexplorer.com, https://nsnexplorer.com/nsn/4520-01-512-9450/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4520-01-512-9450/