Acquisition method (AMC)
3
FSC 4820 × VALVE,STOP-CHECK
VALVE,STOP-CHECK
4820-01-261-0991 FSC 4820
NSN 4820-01-261-0991 (also written 4820012610991; NIIN 01-261-0991) is a valve, stop-check in Federal Supply Class 4820, Valves, Nonpowered. 2 manufacturer part numbers from 2 suppliers 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)
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 | 4 |
| VALVE OPERATION METHOD AQLR | MANUAL |
| FLANGE SHAPE ARKN | ALL ENDS ROUND WITH HOLES |
| CONNECTION TYPE AWLS | ALL ENDS FLANGE |
| MOUNTING POSITION BBJX | HORIZONTAL |
| VALVE SIZE CCFG | INCHES 2.000 |
| OPERATING PRESSURE CQQF | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 150.0 |
| NOMINAL OUTSIDE DIAMETER CWCD | ALL ENDS INCHES 6.000 |
| FACE TO FACE DISTANCE CWCF | INCHES 7.000 |
| NOMINAL THICKNESS CWCK | ALL ENDS INCHES 0.500 |
| BOLT HOLE NOMINAL DIAMETER CWCQ | ALL ENDS INCHES 0.750 |
| BOLT CIRCLE NOMINAL DIAMETER CWCT | ALL ENDS INCHES 4.750 |
| FLANGE FACE DESIGN CWDF | ALL ENDS PLAIN |
| SPECIAL FEATURES FEAT | MATERIAL COPPER ALLOY 865 |
| MATERIAL MATT | FLOW CONTROL DEVICE COPPER ALLOY 836 OR COPPER ALLOY 922 |
| MATERIAL MATT | STEM COPPER ALLOY |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | FLOW CONTROL DEVICE ASSN STD 1ST MATERIAL RESPONSE AST- B62 OR ASSN STD 2ND MATERIAL RESPONSE AST-B61 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | STEM ASSN STD SINGLE MATERIAL RESPONSE AST- B147 ALLOY 8A |
| STYLE DESIGNATOR STYL | — |
| SUPPLEMENTARY FEATURES SUPP | THIS ITEM HAS BEEN REVIEWED FOR ASBESTOS MATERIAL;THE CURRENT APPROVED SOURCES; 30263 HAVE INDICATED THEIR PART NUMBER CONTAINED ASBESTOS PRIOR TO 1984,THEY CONTINUE TO MANUFACTURE THE SAME PART NUMBER WITHOUT ASBESTOS MATERIAL AFTER 1984 |
| FURNISHED ITEMS AND QUANTITY TMQY | HANDWHEEL 1 |
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 |
|---|---|---|
| B-1221-A 2IN | 11859 | HUNT VALVE COMPANY, INC. |
| B-1221-A 2IN | 30263 | PIMA 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
—
Purchases
0
Total spend
—
Sep 15, 2026
Last purchased
1 · 1.0/yr
Purchase records
$55,942
Total demand
$55,942
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.
| Action date | Award # | Recipient | Agency | Obligation |
|---|---|---|---|---|
| Sep 15, 2026 | SPE7M126V135C ↗ | CHAND, L.L.C. | — | $55,942 |
Demand history
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 Sep 2026
HUNT VALVE COMPANY, INC.
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.
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 23, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-10-21.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,STOP-CHECK." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-261-0991/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-261-0991/