Acquisition method (AMC)
3
FSC 4820 × VALVE,CHECK
VALVE,CHECK
4820-01-508-6574 FSC 4820
NSN 4820-01-508-6574 (also written 4820015086574; NIIN 01-508-6574) is a valve, check in Federal Supply Class 4820, Valves, Nonpowered. 1 manufacturer part number from 1 supplier is 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)
H
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC H: the government lacks sufficient, accurate or legible data to buy from other sources. 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 |
| BOLT HOLE QUANTITY AECS | 4 |
| MAXIMUM OPERATING TEMP AEHZ | SINGLE RESPONSE FAHRENHEIT 100.0 |
| END ITEM IDENTIFICATION AGAV | VALVE, SC 2.51 |
| VALVE OPERATION METHOD AQLR | AUTOMATIC |
| FLANGE SHAPE ARKN | ALL ENDS ROUND WITH HOLES |
| CONNECTION TYPE AWLS | ALL ENDS FLANGE |
| MOUNTING FACILITY AZGM | BRACKET(S) |
| MOUNTING POSITION BBJX | HORIZONTAL |
| VALVE SIZE CCFG | INCHES 2.500 |
| OPERATING PRESSURE CQQF | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 275.0 |
| NOMINAL OUTSIDE DIAMETER CWCD | ALL ENDS INCHES 7.000 |
| FACE TO FACE DISTANCE CWCF | INCHES 8.500 |
| NOMINAL THICKNESS CWCK | ALL ENDS INCHES 0.690 |
| BOLT HOLE NOMINAL DIAMETER CWCQ | ALL ENDS INCHES 0.750 |
| BOLT CIRCLE NOMINAL DIAMETER CWCT | ALL ENDS INCHES 5.500 |
| FLANGE FACE DESIGN CWDF | ALL ENDS RAISED STRAIGHT |
| RAISED FACE NOMINAL HEIGHT CWDH | ALL ENDS INCHES 0.060 |
| RAISED FACE NOMINAL DIAMETER CWDL | ALL ENDS INCHES 4.130 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY CXCY | CAST STAINLESS STEEL SWING CHECK VALVE CLASS 150 B,C R,F. |
| SPECIAL FEATURES FEAT | INGALLS SHIPBUILDING, PROJECT: LPD, REQ.: 714606 TRH, ITEM NO: 51391. |
| MATERIAL MATT | BODY STEEL UNS J92500 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | BODY ASSN STD SINGLE MATERIAL RESPONSE AST- A-351 CF3 |
| STYLE DESIGNATOR STYL | — |
| FURNISHED ITEMS AND QUANTITY TMQY | COVER 1 AND GASKET 1 AND WASHER 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 |
|---|---|---|
| LPD0006 | 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
$6,735.00
Purchases
1
Total spend
$6,735
Oct 1, 2026
Last purchased
2 · 2.0/yr
Purchase records
$13,470
Total demand
$6,735.00
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 1, 2026 | 1 | $6,735.00 | $6,735 | PIONEER INDUSTRIES, LLC (66200) | 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 1, 2026 | SPE7MC27V0017 ↗ | PIONEER INDUSTRIES, LLC | — | $6,735 |
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
PIONEER INDUSTRIES, LLC
last award Oct 2026
WILLIAM E WILLIAMS VALVE CORP
no award yet
no awards on record
Listed source PIONEER INDUSTRIES, LLC won the only award on record. PIONEER INDUSTRIES, LLC won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7MC-26-T-296M | Sep 25, 2026 | Oct 5, 2026 | 1 | 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: 2026-10-04.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,CHECK." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-508-6574/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-508-6574/