Acquisition method (AMC)
3
FSC 4820 × PISTON,VALVE
PISTON,VALVE
4820-01-095-4798 FSC 4820
NSN 4820-01-095-4798 (also written 4820010954798; NIIN 01-095-4798) is a piston, valve in Federal Supply Class 4820, Valves, Nonpowered. 5 manufacturer part numbers from 1 supplier 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 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 |
|---|---|
| OUTSIDE DIAMETER ABHE | INCHES NOMINAL 4.375 |
| OVERALL LENGTH ABHP | INCHES NOMINAL 4.218 |
| VALVE TYPE FOR WHICH DESIGNED BTNZ | PRESSURE REDUCING |
| CRITICALITY CODE JUSTIFICATION CRTL | FEAT |
| VALVE DESIGN CONTROL ACTIVITY CYDX | 03847 |
| SPECIAL FEATURES FEAT | WEAPON SYSTEM ESSENTIAL. FEATURES - NHA 1 1/2 IN. WARREN TYPE 436 PRESSURE REDUCING VALVE. |
| MATERIAL MATT | NICKEL ALLOY |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | ASSN STD 1ST MATERIAL RESPONSE QQ-N-268 CO- D QQ-N-268 |
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 |
|---|---|---|
| 20110233 | 03847 | WARREN CONTROLS, INC. |
| 20110730 | 03847 | WARREN CONTROLS, INC. |
| 30810264 | 03847 | WARREN CONTROLS, INC. |
| 30810264 PIECE 12 | 03847 | WARREN CONTROLS, INC. |
| 30810998 ITEM 132 | 03847 | WARREN CONTROLS, INC. |
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
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Purchases
0
Total spend
—
—
Last purchased
—
Purchase records
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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-27-T-0978 | Oct 23, 2026 | Nov 2, 2026 | 14 | Cancelled | 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 23, 2026.
- Contract action totals: USAspending, context only.
- Full methodology →
Cite this page
Citation
NSN Explorer. "PISTON,VALVE." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-095-4798/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-095-4798/