Acquisition method (AMC)
3
FSC 4820 × GUIDE,VALVE STEM
GUIDE,VALVE STEM
4820-01-520-4818 FSC 4820
NSN 4820-01-520-4818 (also written 4820015204818; NIIN 01-520-4818) is a guide, valve stem in Federal Supply Class 4820, Valves, Nonpowered. 3 manufacturer part numbers from 1 supplier are on record. It was last purchased in Sep 2026.
Open for bid
No open solicitations on record for this NSN right now.
Can you win it?
This item is coded to be bought directly from the actual manufacturer (AMC 3).
Suffix (AMSC)
H
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC H: the government lacks sufficient, accurate or legible data to buy from other 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 |
|---|---|
| END ITEM IDENTIFICATION AGAV | 4 INCH VALVE ASSEMBLY |
| PART NAME ASSIGNED BY CONTROLLING AGENCY CXCY | ADAPTER, STEM |
| MATERIAL MATT | STEEL CORROSION RESISTING |
| PROPRIETARY CHARACTERISTICS PRPY | NPAC |
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 |
|---|---|---|
| 106-0220 | 53154 | PORTLAND VALVE LLC |
| 506-0018 | 53154 | PORTLAND VALVE LLC |
| 506-0018 PC NO 19 | 53154 | PORTLAND VALVE LLC |
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
$6,023.00
Purchases
1
Total spend
$12,046
Sep 24, 2026
Last purchased
2 · 2.0/yr
Purchase records
$24,092
Total demand
$6,023.00
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Sep 24, 2026 | 2 | $6,023.00 | $12,046 | PORTLAND VALVE LLC (53154) | 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 |
|---|---|---|---|---|
| Sep 24, 2026 | SPE7MC26P3689 ↗ | PORTLAND VALVE LLC | — | $12,046 |
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
PORTLAND VALVE LLC
last award Sep 2026
PORTLAND VALVE LLC won the only award on record.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7MC-26-T-117F | Jul 6, 2026 | Aug 28, 2026 | 2 | 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: 2026-10-04.
- Full methodology →
Cite this page
Citation
NSN Explorer. "GUIDE,VALVE STEM." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-520-4818/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-520-4818/