Acquisition method (AMC)
3
FSC 4820 × VALVE,CHECK
VALVE,CHECK
4820-01-630-8284 FSC 4820
NSN 4820-01-630-8284 (also written 4820016308284; NIIN 01-630-8284) is a valve, check in Federal Supply Class 4820, Valves, Nonpowered. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Oct 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)
Q
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC Q: the government lacks adequate data or rights, but breakout to competition is expected. 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 |
|---|---|
| FLANGE SHAPE ARKN | ALL ENDS ROUND |
| VALVE OPERATION METHOD AQLR | AUTOMATIC |
| FACE TO FACE DISTANCE CWCF | INCHES 6.500 |
| NOMINAL THICKNESS CWCK | ALL ENDS INCHES 0.690 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY CXCY | FORGED STEEL SWING CHECK VALVE, FLANGED END ANSI CLS 150 |
| MATERIAL MATT | BODY STEEL |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | BODY ASSN STD SINGLE MATERIAL RESPONSE AST- A105N |
| STYLE DESIGNATOR STYL | — |
| NOMINAL OUTSIDE DIAMETER CWCD | ALL ENDS INCHES 5.000 |
| VALVE SIZE CCFG | INCHES 1.500 |
| CONNECTION TYPE AWLS | ALL ENDS FLANGE |
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 |
|---|---|---|
| WARREN-3155F 1.50IN | 095Y7 | WARREN ALLOY VALVE AND FITTING CO INC |
| WARREN-3155F 1.50IN | 1QP40 | W & O SUPPLY INC |
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
$113.10
Purchases
1
Total spend
$904.80
Oct 20, 2026
Last purchased
3 · 3.0/yr
Purchase records
$3,905
Total demand
$113.10
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 20, 2026 | 8 | $113.10 | $904.80 | W & O SUPPLY INC (1QP40) | 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 |
|---|---|---|---|---|
| Oct 1, 2026 | SPE7MC27V0013 ↗ | ECHELON SUPPLY AND SERVICE, INC. | — | $2,095 |
| Oct 20, 2026 | SPE7MC27V0281 ↗ | W & O SUPPLY INC | — | $904.80 |
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
W & O SUPPLY INC
last award Oct 2026
WARREN ALLOY VALVE AND FITTING CO INC
no award yet
no awards on record
Listed source W & O SUPPLY INC won the only award on record.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7MC-27-T-0625 | Oct 13, 2026 | Oct 23, 2026 | 8 | 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: 2026-10-21.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,CHECK." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-630-8284/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-630-8284/