Acquisition method (AMC)
1
FSC 4820 × VALVE,CHECK
VALVE,CHECK
4820-01-429-2493 FSC 4820
NSN 4820-01-429-2493 (also written 4820014292493; NIIN 01-429-2493) is a valve, check in Federal Supply Class 4820, Valves, Nonpowered. 4 manufacturer part numbers from 2 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 as suitable for competitive acquisition (AMC 1).
Suffix (AMSC)
G
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC G: the government has a complete data package and the rights to use it. 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 |
|---|---|
| NOMINAL PIPE SIZE ACCOMMODATED AAAR | ALL ENDS INCHES 0.250 |
| FLOW CONTROL DEVICE ADQU | BALL |
| END ITEM IDENTIFICATION AGAV | RESERVOIR ASSY U/O THE SEAWOLF CLASS SSN |
| CONNECTION STYLE AHNC | — |
| VALVE OPERATION METHOD AQLR | AUTOMATIC |
| CONNECTION TYPE AWLS | FIRST END UNTHREADED INTERNAL PIPE |
| MATERIAL MATT | FLOW CONTROL DEVICE STEEL CORROSION RESISTING |
| STYLE DESIGNATOR STYL | — |
| FURNISHED ITEMS AND QUANTITY TMQY | FILTER SCREEN 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 |
|---|---|---|
| 211078646 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| 6405539 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| 801-6405539-10-1 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| DF2300-4423 ASSY 10-1 | 43689 | HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING |
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-305X | Sep 29, 2026 | Oct 9, 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.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,CHECK." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-429-2493/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-429-2493/