Acquisition method (AMC)
3
FSC 4820 × VALVE,SAFETY RELIEF
VALVE,SAFETY RELIEF
4820-01-650-4220 FSC 4820
NSN 4820-01-650-4220 (also written 4820016504220; NIIN 01-650-4220) is a valve, safety relief in Federal Supply Class 4820, Valves, Nonpowered. 4 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Sep 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 |
|---|---|
| OPERATING PRESSURE CQQF | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 175.0 |
| END ITEM IDENTIFICATION AGAV | CO2 INFLATION |
| PROPRIETARY CHARACTERISTICS PRPY | PACS |
| MATERIAL MATT | OVERALL STEEL COMP 316L |
| PART NAME ASSIGNED BY CONTROLLING AGENCY CXCY | RELIEF VALVE, 1/4" NPT, SET AT 175 PSIG |
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 |
|---|---|---|
| SV175SS | 72661 | DIXON VALVE & COUPLING COMPANY, LLC DIV DIXON FIRE |
| WLP001455-002 | 0EYA6 | DEFENSE MARITIME SOLUTIONS, INC. |
| WLP001455-002 REV C PC NO 41 | 0EYA6 | DEFENSE MARITIME SOLUTIONS, INC. |
| WLP001455-002-41 | 0EYA6 | DEFENSE MARITIME SOLUTIONS, 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
—
Purchases
0
Total spend
—
Sep 24, 2026
Last purchased
1 · 1.0/yr
Purchase records
$1,240
Total demand
$1,240
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.
| Action date | Award # | Recipient | Agency | Obligation |
|---|---|---|---|---|
| Sep 24, 2026 | SPE7MC26V3184 ↗ | — | — | $1,240 |
Demand history
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
CAGE 4A074
last award Sep 2026
DEFENSE MARITIME SOLUTIONS, INC.
no award yet
no awards on record
Listed source DIXON VALVE & COUPLING COMPANY, LLC DIV DIXON FIRE
no award yet
no awards on record
Listed source CAGE 4A074 won the only award on record. CAGE 4A074 won without being a listed source.
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: 2026-09-27.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,SAFETY RELIEF." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-650-4220/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-650-4220/