Acquisition method (AMC)
3
FSC 4820 × VALVE,CHECK
VALVE,CHECK
4820-01-435-8698 FSC 4820
NSN 4820-01-435-8698 (also written 4820014358698; NIIN 01-435-8698) is a valve, check in Federal Supply Class 4820, Valves, Nonpowered. 6 manufacturer part numbers from 4 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)
C
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC C: needs engineering source approval; other sources must qualify first. 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 |
|---|---|
| THREAD CLASS AAJD | 3B |
| MAXIMUM OPERATING TEMP AEHZ | SINGLE RESPONSE FAHRENHEIT 125.0 |
| MINIMUM OPERATING TEMP AEQJ | FAHRENHEIT -25.0 |
| VALVE OPERATION METHOD AQLR | AUTOMATIC |
| CONNECTION TYPE AWLS | ALL ENDS THREADED INTERNAL TUBE |
| THREAD QUANTITY PER INCH CMLP | 12 |
| NOMINAL THREAD SIZE CQJX | ALL ENDS INCHES 1.625 |
| OPERATING PRESSURE CQQF | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 3000.0 |
| OPENING PRESSURE SETTING CSDC | POUNDS PER SQUARE INCH 30.0 |
| NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED CWFD | ALL ENDS INCHES 1.250 |
| THREAD SERIES DESIGNATOR THSD | ALL ENDS UN |
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 |
|---|---|---|
| 1741AS346 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER |
| 1741AS346-1 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER |
| 4CS-10-A-21 | 32705 | VICKERS INC |
| 4CS-10-A-21 | 45X75 | DANFOSS POWER SOLUTIONS II, LLC |
| 4CS-10-A-21 | 62983 | EATON AEROSPACE, LLC DBA JACKSON SOUTH |
| 626618 | 45X75 | DANFOSS POWER SOLUTIONS II, 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
$1,955.65
Purchases
1
Total spend
$3,911
Oct 22, 2026
Last purchased
2 · 2.0/yr
Purchase records
$7,823
Total demand
$1,955.65
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 22, 2026 | 2 | $1,955.65 | $3,911 | ECHELON SUPPLY AND SERVICE, INC. (61125) | 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 22, 2026 | SPE7M227V0304 ↗ | ECHELON SUPPLY AND SERVICE, INC. | — | $3,911 |
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
ECHELON SUPPLY AND SERVICE, INC.
last award Oct 2026
DANFOSS POWER SOLUTIONS II, LLC
no award yet
no awards on record
Listed source EATON AEROSPACE, LLC DBA JACKSON SOUTH
no award yet
no awards on record
Listed source NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER
no award yet
no awards on record
Listed source VICKERS INC
no award yet
no awards on record
Listed source ECHELON SUPPLY AND SERVICE, INC. won the only award on record. ECHELON SUPPLY AND SERVICE, INC. won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7MC-26-T-244N | Sep 1, 2026 | Sep 11, 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.
- Data last refreshed: 2026-10-23.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,CHECK." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-435-8698/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-435-8698/