Acquisition method (AMC)
3
FSC 4820 × VALVE,CHECK
VALVE,CHECK
4820-01-206-4373 FSC 4820
NSN 4820-01-206-4373 (also written 4820012064373; NIIN 01-206-4373) is a valve, check in Federal Supply Class 4820, Valves, Nonpowered. 9 manufacturer part numbers from 4 suppliers are on record. No purchases are on record yet.
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)
R
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC R: the government owns neither the data nor the rights, and obtaining them is judged uneconomical. 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 |
| DISK LOADING METHOD ADSU | WEIGHT |
| RENEWABLE SEAT RING TYPE ADZH | THREADED |
| BOLT HOLE QUANTITY AECS | 8 |
| VALVE OPERATION METHOD AQLR | AUTOMATIC |
| FLANGE SHAPE ARKN | ALL ENDS ROUND WITH HOLES |
| CONNECTION TYPE AWLS | ALL ENDS FLANGE |
| MOUNTING POSITION BBJX | HORIZONTAL OR VERTICAL |
| VALVE SIZE CCFG | INCHES 8.000 |
| OPERATING PRESSURE CQQF | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 150.0 |
| NOMINAL OUTSIDE DIAMETER CWCD | ALL ENDS INCHES 13.500 |
| FACE TO FACE DISTANCE CWCF | INCHES 19.500 |
| NOMINAL THICKNESS CWCK | ALL ENDS INCHES 1.063 |
| BOLT HOLE NOMINAL DIAMETER CWCQ | ALL ENDS INCHES 0.875 |
| BOLT CIRCLE NOMINAL DIAMETER CWCT | ALL ENDS INCHES 11.750 |
| FLANGE FACE DESIGN CWDF | ALL ENDS RAISED STRAIGHT |
| RAISED FACE NOMINAL HEIGHT CWDH | ALL ENDS INCHES 0.062 |
| RAISED FACE NOMINAL DIAMETER CWDL | ALL ENDS INCHES 10.625 |
| SPECIAL FEATURES FEAT | SWING-CHECK TYPE; END FLANGE DIMENSIONS CONFORM TO ANSI B16.5,FACE TO FACE DIMENSIONS CONFORM TO ANSI B16.10 |
| MATERIAL MATT | FLOW CONTROL DEVICE STEEL UNS J92800 |
| MATERIAL MATT | BODY STEEL UNS J92800 |
| 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 |
|---|---|---|
| 056744 | 48422 | WILLIAM POWELL COMPANY, THE DBA POWELL VALVE DIV THE STARFLO CORPORATION |
| 056744 PL 057170 | 48422 | WILLIAM POWELL COMPANY, THE DBA POWELL VALVE DIV THE STARFLO CORPORATION |
| 151F1LW | 79342 | WILLIAM E WILLIAMS VALVE CORP |
| 1561AFE-8IN | 48422 | WILLIAM POWELL COMPANY, THE DBA POWELL VALVE DIV THE STARFLO CORPORATION |
| 2633 DWG 056744 | 48422 | WILLIAM POWELL COMPANY, THE DBA POWELL VALVE DIV THE STARFLO CORPORATION |
| 31F-CB7 8IN | 61661 | NEWMANS INC NEW JERSEY DIV |
| 5341F 8IN. | 63686 | THE WALWORTH COMPANY |
| FIG 2633(FE) 8IN | 48422 | WILLIAM POWELL COMPANY, THE DBA POWELL VALVE DIV THE STARFLO CORPORATION |
| LHD8431 | 79342 | WILLIAM E WILLIAMS VALVE CORP |
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
—
Purchases
0
Total spend
—
—
Last purchased
—
Purchase records
—
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 — 1 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 | |
|---|---|---|---|---|---|
| SPE7MC-26-T-277H | Sep 17, 2026 | Sep 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.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,CHECK." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-206-4373/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-206-4373/