Acquisition method (AMC)
3
FSC 4820 × VALVE,RELIEF,PRESSURE AND TEMPER
VALVE,RELIEF,PRESSURE AND TEMPER
4820-01-204-5033 FSC 4820
NSN 4820-01-204-5033 (also written 4820012045033; NIIN 01-204-5033) is a valve, relief, pressure and temper in Federal Supply Class 4820, Valves, Nonpowered. 6 manufacturer part numbers from 4 suppliers are on record. The government has 1 open solicitation for it.
Open for bid
1 open solicitation on record right now — quantity, close date, and where to submit.
| Solicitation | Qty | Status | |
|---|---|---|---|
| SPE7MC-27-T-1425 | 3 | Closes in 9d | Bid → |
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 |
|---|---|
| BODY STYLE AAQL | — |
| FIRST END CONNECTION TYPE ACKM | THREADED INTERNAL PIPE |
| FIRST END STYLE DESIGNATOR ACKN | — |
| FIRST END OUTSIDE DIAMETER TUBE ACCOMMODATED ACLH | INCHES NOMINAL 0.50 |
| FIRST END THREAD DIRECTION ACLL | RIGHT-HAND |
| SECOND END RELATIONSHIP WITH FIRST END ACLR | NOT IDENTICAL |
| SECOND END CONNECTION TYPE ACLS | THREADED EXTERNAL PIPE |
| SECOND END OUTSIDE DIAMETER TUBE ACCOMMODATED ACMP | INCHES NOMINAL 0.50 |
| SECOND END THREAD DIRECTION ACMS | RIGHT-HAND |
| FLOW CONTROL DEVICE ADQU | BALL |
| END CONNECTION QUANTITY ADQZ | 2 |
| FIRST END THREAD SERIES DESIGNATOR CQMM | NPT |
| FIRST END NOMINAL THREAD SIZE CQYM | INCHES 0.50 |
| SECOND END NOMINAL THREAD SIZE CRNB | INCHES 0.50 |
| SECOND END THREAD SERIES DESIGNATOR CRPF | NPT |
| MATERIAL MATT | BODY STEEL CORROSION RESISTING |
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 |
|---|---|---|
| 4SE00249-1 | 28638 | NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 1.3.1 BLDG 562-1 |
| 4SE00249-1 | 80020 | NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION, LAKEHURST |
| 4SE01249-1 | 80020 | NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION, LAKEHURST |
| 5027K41 | 39428 | MCMASTER-CARR SUPPLY CO |
| 5027K51 | 39428 | MCMASTER-CARR SUPPLY CO |
| RV-316-1 | 28625 | NEPTUNE CHEMICAL PUMP CO DIV OF R A INDUSTRIES 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
$450.45
Purchases
1
Total spend
$900.90
Sep 3, 2026
Last purchased
2 · 2.0/yr
Purchase records
$1,802
Total demand
$450.45
Latest unit price
Purchase history
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 3, 2026 | SPE7MC26V4307 ↗ | — | — | $900.90 |
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
CAGE 9RU99
last award Sep 2026
MCMASTER-CARR SUPPLY CO
no award yet
no awards on record
Listed source NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 1.3.1 BLDG 562-1
no award yet
no awards on record
Listed source NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION, LAKEHURST
no award yet
no awards on record
Listed source NEPTUNE CHEMICAL PUMP CO DIV OF R A INDUSTRIES INC
no award yet
no awards on record
Listed source CAGE 9RU99 won the only award on record. CAGE 9RU99 won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7MC-27-T-1425 | Nov 5, 2026 | Nov 16, 2026 | 3 | Open | View at DIBBS → |
| SPE7MC-26-T-238W | Aug 28, 2026 | Sep 8, 2026 | 2 | 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: 2026-10-25.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,RELIEF,PRESSURE AND TEMPER." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-204-5033/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-204-5033/