Acquisition method (AMC)
3
FSC 4820 × VALVE,SAFETY RELIEF
VALVE,SAFETY RELIEF
4820-01-414-4436 FSC 4820
NSN 4820-01-414-4436 (also written 4820014144436; NIIN 01-414-4436) is a valve, safety relief in Federal Supply Class 4820, Valves, Nonpowered. 2 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)
D
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC D: the data needed to compete the part is unavailable or cannot be obtained economically. 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 |
| BOLT HOLE QUANTITY AECS | 4 |
| END ITEM IDENTIFICATION AGAV | WHIDBEY ISLAND CLASS LSD |
| VALVE OPERATION METHOD AQLR | AUTOMATIC |
| FLANGE SHAPE ARKN | ALL ENDS ROUND WITH HOLES |
| CONNECTION TYPE AWLS | ALL ENDS FLANGE |
| VALVE SIZE CCFG | INCHES 1.000 |
| ADJUSTABLE PRESSURE RANGE CQCY | POUNDS PER SQUARE INCH 59.0 TO 72.0 |
| NOMINAL OUTSIDE DIAMETER CWCD | FIRST END INCHES 6.000 |
| NOMINAL OUTSIDE DIAMETER CWCD | SECOND END INCHES 4.250 |
| NOMINAL THICKNESS CWCK | FIRST END INCHES 0.750 |
| NOMINAL THICKNESS CWCK | SECOND END INCHES 0.562 |
| BOLT HOLE NOMINAL DIAMETER CWCQ | SECOND END INCHES 0.625 |
| BOLT HOLE NOMINAL DIAMETER CWCQ | FIRST END INCHES 0.750 |
| BOLT CIRCLE NOMINAL DIAMETER CWCT | SECOND END INCHES 3.125 |
| BOLT CIRCLE NOMINAL DIAMETER CWCT | FIRST END INCHES 4.750 |
| FLANGE FACE DESIGN CWDF | ALL ENDS RAISED STRAIGHT |
| RAISED FACE NOMINAL HEIGHT CWDH | ALL ENDS INCHES 0.062 |
| RAISED FACE NOMINAL DIAMETER CWDL | SECOND END INCHES 1.938 |
| RAISED FACE NOMINAL DIAMETER CWDL | FIRST END INCHES 3.062 |
| MATERIAL MATT | FLOW CONTROL DEVICE NICKEL ALLOY |
| MATERIAL MATT | BODY STEEL |
| MATERIAL MATT | STEM NICKEL ALLOY |
| STYLE DESIGNATOR STYL | — |
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 |
|---|---|---|
| R10AF5J512-CM1 | 11859 | HUNT VALVE COMPANY, INC. |
| R10AF5J512-CM1 | 34889 | HUNT VALVE COMPANY INC DBA UNION FLONETICS |
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 21, 2026
Last purchased
1 · 1.0/yr
Purchase records
$80,000
Total demand
$80,000
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 21, 2026 | SPE7M225V3969 ↗ | HUNT VALVE COMPANY, INC. | — | $80,000 |
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
HUNT VALVE COMPANY, INC.
last award Sep 2026
HUNT VALVE COMPANY INC DBA UNION FLONETICS
no award yet
no awards on record
Listed source HUNT VALVE COMPANY, INC. won the only award on record.
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: 2026-09-29.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,SAFETY RELIEF." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-414-4436/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-414-4436/