Acquisition method (AMC)
3
FSC 4820 × VALVE,REGULATING,SYSTEM PRESSURE
VALVE,REGULATING,SYSTEM PRESSURE
4820-01-728-6178 FSC 4820
NSN 4820-01-728-6178 (also written 4820017286178; NIIN 01-728-6178) is a valve, regulating, system pressure in Federal Supply Class 4820, Valves, Nonpowered. 2 manufacturer part numbers from 1 supplier are 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)
Q
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC Q: the government lacks adequate data or rights, but breakout to competition is expected. 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 |
|---|---|
| OUTLET PRESSURE RANGE AEVA | POUNDS PER SQUARE INCH (PSI) 0.0 TO 350.0 |
| REGULATION TYPE AEVN | MANUAL SINGLE STAGE |
| VALVE STEM DESIGN AEVQ | SINGLE SEAT |
| VALVE LOADING METHOD AEVR | BELLOWS |
| MAXIMUM INLET PRESSURE RATING AEVZ | POUNDS PER SQUARE INCH (PSI) 350.0 |
| FLOW CONTROL DEVICE ADQU | STEM AND INTEGRAL DISK |
| END CONNECTION QUANTITY ADQZ | 1 |
| MOUNTING FACILITY ADZJ | INTERNAL THREAD |
| BODY STYLE AAQL | — |
| FIRST CONNECTION FACE TO CENTERLINE DISTANCE ADQM | INCHES NOMINAL 1.81 |
| SECOND CONNECTION FACE TO CENTERLINE DISTANCE ADQN | INCHES NOMINAL 1.81 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY CXCY | CAPACITY COMPRESSOR VALVE |
| SPECIAL FEATURES FEAT | OVERALL LENGTH 9.03 INCH;OVERALL HEIGHT 3.38 INCH;OVERALL WIDTH 3.50 INCH;SERVICE REFRIGERANT HFC-134A;VALVE WEIGHT 9.8 POUNDS |
| MEDIA FOR WHICH DESIGNED MEDA | REFRIGERANT, NONCORROSIVE |
| PROPRIETARY CHARACTERISTICS PRPY | PACS |
| VALVE SIZE CCFG | INCHES 1.50 |
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 |
|---|---|---|
| M4637-3079 | 0ASY6 | DERBYSHIRE MARINE PRODUCTS, LLC DBA DERBYSHIRE MARINE PRODUCTS LLC |
| MPL3079 | 0ASY6 | DERBYSHIRE MARINE PRODUCTS, LLC DBA DERBYSHIRE MARINE PRODUCTS LLC |
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
$7,889.05
Purchases
2
Total spend
$39,445
Oct 6, 2026
Last purchased
4 · 4.0/yr
Purchase records
$78,891
Total demand
$7,889.05
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 6, 2026 | 2 | $7,889.05 | $15,778 | DERBYSHIRE MARINE PRODUCTS, LLC DBA DERBYSHIRE MARINE PRODUCTS LLC (0ASY6) | Unknown | Source ↗ |
| Sep 22, 2026 | 3 | $7,889.05 | $23,667 | DERBYSHIRE MARINE PRODUCTS, LLC DBA DERBYSHIRE MARINE PRODUCTS LLC (0ASY6) | 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 |
|---|---|---|---|---|
| Sep 22, 2026 | SPE7MC26V4521 ↗ | DERBYSHIRE MARINE PRODUCTS, LLC DBA DERBYSHIRE MARINE PRODUCTS LLC | — | $23,667 |
| Oct 6, 2026 | SPE7MC27V0085 ↗ | DERBYSHIRE MARINE PRODUCTS, LLC DBA DERBYSHIRE MARINE PRODUCTS LLC | — | $15,778 |
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.
Time from solicitation to award
How long does a buy take from posting to award? One bar per past award that matches a solicitation.
- Open for quotes
- Closed, awaiting award
The typical buy took 11 days from posting to award.
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
DERBYSHIRE MARINE PRODUCTS, LLC DBA DERBYSHIRE MARINE PRODUCTS LLC
last award Oct 2026
DERBYSHIRE MARINE PRODUCTS, LLC DBA DERBYSHIRE MARINE PRODUCTS LLC won 2 of the last 2 awards.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7MC-26-T-299R | Sep 25, 2026 | Oct 5, 2026 | 2 | Expired | View at DIBBS → |
| SPE7MC-26-T-269B | Sep 11, 2026 | Sep 21, 2026 | 3 | 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: 2026-10-08.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,REGULATING,SYSTEM PRESSURE." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-728-6178/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-728-6178/