Acquisition method (AMC)
1
FSC 4820 × VALVE,CHECK
VALVE,CHECK
4820-01-425-5311 FSC 4820
NSN 4820-01-425-5311 (also written 4820014255311; NIIN 01-425-5311) is a valve, check in Federal Supply Class 4820, Valves, Nonpowered. 4 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 as suitable for competitive acquisition (AMC 1).
Suffix (AMSC)
R
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, 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 |
|---|---|
| THREAD CLASS AAJD | 2B |
| THREAD DIRECTION AAJF | ALL ENDS RIGHT-HAND |
| FLOW CONTROL DEVICE ADQU | POPPET |
| MAXIMUM OPERATING TEMP AEHZ | SINGLE RESPONSE FAHRENHEIT 212.0 |
| MINIMUM OPERATING TEMP AEQJ | FAHRENHEIT -4.0 |
| END ITEM IDENTIFICATION AGAV | STRATEGIC SEALIFT CONVERSION SHIPS |
| CONNECTION STYLE AHNC | — |
| VALVE OPERATION METHOD AQLR | AUTOMATIC |
| CONNECTION TYPE AWLS | ALL ENDS THREADED INTERNAL BOSS |
| MOUNTING POSITION BBJX | HORIZONTAL OR VERTICAL |
| THREAD QUANTITY PER INCH CMLP | 12 |
| NOMINAL THREAD SIZE CQJX | ALL ENDS INCHES 1.875 |
| OPERATING PRESSURE CQQF | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 5000.0 |
| SPECIAL FEATURES FEAT | N/H/A SLEWING STERN RAMP SYSTEM MANIFOLD "D" |
| MATERIAL MATT | BODY STEEL |
| MEDIA FOR WHICH DESIGNED MEDA | SECOND RESPONSE HYDRAULIC FLUID, PHOSPHATE-ESTER BASE |
| MEDIA FOR WHICH DESIGNED MEDA | FIRST RESPONSE HYDRAULIC FLUID, MINERAL BASE |
| STYLE DESIGNATOR STYL | — |
| 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 |
|---|---|---|
| D-452-098 | 53546 | PACIFIC POWERTECH LLC |
| D-452-098 IT H | 53546 | PACIFIC POWERTECH LLC |
| RV-30-01.X/12 | 59793 | HYDAC CORP |
| RV30-1.1/12 | 59793 | HYDAC 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
$275.00
Purchases
1
Total spend
$275.00
Oct 5, 2026
Last purchased
2 · 2.0/yr
Purchase records
$550.00
Total demand
$275.00
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 5, 2026 | 1 | $275.00 | $275.00 | WOMACK MACHINE SUPPLY CO., LLC DBA EVOLUTION MOTION SOLUTIONS (1S3G7) | 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 5, 2026 | SPE7M127V0153 ↗ | — | — | $275.00 |
Demand history
Every solicitation we've indexed for this NSN, open and closed — 2 on record. Closed RFQs (expired, cancelled, or awarded) stay here as a record of past demand; they never get removed.
Buying rhythm
How often does the government buy this item, and how long since the last time? Every solicitation and award on one line.
- Solicitation posted
- Award made
Dot size shows quantity. A faint bar joins a solicitation to the award made against it.
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
WOMACK MACHINE SUPPLY CO., LLC DBA EVOLUTION MOTION SOLUTIONS
last award Oct 2026
HYDAC CORP
no award yet
no awards on record
Listed source PACIFIC POWERTECH LLC
no award yet
no awards on record
Listed source WOMACK MACHINE SUPPLY CO., LLC DBA EVOLUTION MOTION SOLUTIONS won the only award on record. WOMACK MACHINE SUPPLY CO., LLC DBA EVOLUTION MOTION SOLUTIONS won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7M1-26-T-390F | Sep 30, 2026 | Oct 13, 2026 | 1 | Expired | View at DIBBS → |
| SPE7MC-26-T-174A | Aug 7, 2026 | Aug 17, 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,CHECK." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-425-5311/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-425-5311/