Acquisition method (AMC)
1
FSC 4820 × VALVE,EXPANSION
VALVE,EXPANSION
4820-00-256-6684 FSC 4820
NSN 4820-00-256-6684 (also written 4820002566684; NIIN 00-256-6684) is a valve, expansion in Federal Supply Class 4820, Valves, Nonpowered. 6 manufacturer part numbers from 4 suppliers 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 as suitable for competitive acquisition (AMC 1).
Suffix (AMSC)
R
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC R: the government owns neither the data nor the rights, and obtaining them is judged uneconomical. 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 |
|---|---|
| MEDIA FOR WHICH DESIGNED MEDA | LOCATION NOT OTHERWISE SPECIFIED REFRIGERANT 12 |
| FLOW CONTROL DEVICE ADQU | DISK, TOP GUIDED |
| END CONNECTION QUANTITY ADQZ | 2 |
| SECOND END OUTSIDE DIAMETER TUBE ACCOMMODATED ACMP | INCHES NOMINAL 0.625 |
| BODY STYLE AAQL | — |
| SECOND END STYLE DESIGNATOR ACLT | — |
| REFRIGERATION CAPACITY IN BTU PER HOUR AGUB | 15.6 |
| MOUNTING METHOD AXGY | BULB CLAMP |
| MATERIAL MATT | SEAT COPPER ALLOY |
| MATERIAL MATT | BODY COPPER ALLOY |
| BULB LENGTH AEVU | INCHES NOMINAL 4.812 |
| BULB DIAMETER AEVV | INCHES NOMINAL 0.625 |
| FIRST END CONNECTION TYPE ACKM | UNTHREADED INTERNAL TUBE |
| FIRST END STYLE DESIGNATOR ACKN | — |
| FIRST END OUTSIDE DIAMETER TUBE ACCOMMODATED ACLH | INCHES NOMINAL 0.500 |
| SECOND END RELATIONSHIP WITH FIRST END ACLR | NOT IDENTICAL |
| SECOND END CONNECTION TYPE ACLS | UNTHREADED INTERNAL TUBE |
| TEMP RATING ABJH | FAHRENHEIT -50.0 AND FAHRENHEIT 50.0 |
| VALVE EVAPORATOR TEMP RANGE DESIGNATION AFKL | LOW |
| SPECIAL FEATURES FEAT | FURN W/BULB CLAMPS AND INSTRUCTION SHEET; SAFE WORKING PRESSURE 450.0 PSIG |
| CAPILLARY TUBE LENGTH AEVT | INCHES NOMINAL 240.000 |
| MATERIAL MATT | FLOW CONTROL DEVICE STEEL |
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 |
|---|---|---|
| 4820PL0990985 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX |
| F23046 | 70255 | EMERSON ELECTRIC CO ALCO CONTROLS DIV |
| TCLN200FA4F | 70255 | EMERSON ELECTRIC CO ALCO CONTROLS DIV |
| TCLN2FW | 2B475 | PROGRESS SUPPLY, INC. |
| TCLN2FW | 5K089 | WILLIAMS AND CO INC |
| TCLN2FW | 70255 | EMERSON ELECTRIC CO ALCO CONTROLS DIV |
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
$758.00
Purchases
1
Total spend
$2,274
Oct 27, 2026
Last purchased
2 · 2.0/yr
Purchase records
$4,548
Total demand
$758.00
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 27, 2026 | 3 | $758.00 | $2,274 | MAKPAK, LLC DBA MAKPAK LLC (7ECU3) | 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 |
|---|---|---|---|---|
| Oct 27, 2026 | SPE7M127V1018 ↗ | MAKPAK, LLC DBA MAKPAK LLC | — | $2,274 |
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.
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
MAKPAK, LLC DBA MAKPAK LLC
last award Oct 2026
EMERSON ELECTRIC CO ALCO CONTROLS DIV
no award yet
no awards on record
Listed source JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX
no award yet
no awards on record
Listed source PROGRESS SUPPLY, INC.
no award yet
no awards on record
Listed source WILLIAMS AND CO INC
no award yet
no awards on record
Listed source MAKPAK, LLC DBA MAKPAK LLC won the only award on record. MAKPAK, LLC DBA MAKPAK LLC won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7MC-26-T-302E | Sep 28, 2026 | Oct 14, 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: 2026-10-28.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,EXPANSION." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-00-256-6684/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4820-00-256-6684/