Acquisition method (AMC)
3
FSC 4820 × VALVE,STOP-CHECK
VALVE,STOP-CHECK
4820-01-331-8670 FSC 4820
NSN 4820-01-331-8670 (also written 4820013318670; NIIN 01-331-8670) is a valve, stop-check in Federal Supply Class 4820, Valves, Nonpowered. 3 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)
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 |
|---|---|
| FLOW CONTROL DEVICE ADQU | DISK |
| BONNET TYPE ADSR | OUTSIDE SCREW-YOKE |
| BONNET ATTACHMENT METHOD ADST | BOLTED |
| BOLT HOLE QUANTITY AECS | 8 |
| VALVE OPERATION METHOD AQLR | MANUAL |
| FLANGE SHAPE ARKN | ALL ENDS ROUND |
| CONNECTION TYPE AWLS | ALL ENDS FLANGE |
| MOUNTING POSITION BBJX | HORIZONTAL |
| VALVE SIZE CCFG | INCHES 6.000 |
| NOMINAL OUTSIDE DIAMETER CWCD | ALL ENDS INCHES 10.125 |
| FACE TO FACE DISTANCE CWCF | INCHES 14.750 |
| NOMINAL THICKNESS CWCK | ALL ENDS INCHES 1.188 |
| BOLT HOLE NOMINAL DIAMETER CWCQ | ALL ENDS INCHES 0.688 |
| BOLT CIRCLE NOMINAL DIAMETER CWCT | ALL ENDS INCHES 8.875 |
| FLANGE FACE DESIGN CWDF | ALL ENDS PLAIN |
| MATERIAL MATT | BODY COPPER ALLOY |
| PROPRIETARY CHARACTERISTICS PRPY | PACS |
| STYLE DESIGNATOR STYL | — |
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 |
|---|---|---|
| NB25221E-0000 | 30263 | PIMA VALVE, LLC |
| NB25221E-0000 6INCH | 30263 | PIMA VALVE, LLC |
| NB25221E-0000 6INCH | 38881 | MONTREAL BRONZE LTD DBA LES FONDERIES DE BRONZE MONTR?AL |
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
$25,463.45
Purchases
1
Total spend
$76,390
Oct 6, 2026
Last purchased
2 · 2.0/yr
Purchase records
$152,781
Total demand
$25,463.45
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 6, 2026 | 3 | $25,463.45 | $76,390 | CHAND, L.L.C. (0D5X4) | 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 6, 2026 | SPE7MC27V0071 ↗ | CHAND, L.L.C. | — | $76,390 |
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
CHAND, L.L.C.
last award Oct 2026
MONTREAL BRONZE LTD DBA LES FONDERIES DE BRONZE MONTR?AL
no award yet
no awards on record
Listed source PIMA VALVE, LLC
no award yet
no awards on record
Listed source CHAND, L.L.C. won the only award on record. CHAND, L.L.C. won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7MC-26-T-295N | Sep 25, 2026 | Oct 5, 2026 | 3 | 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: 2026-10-08.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,STOP-CHECK." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-331-8670/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-331-8670/