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. No purchases are on record yet.
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 |
|---|---|
| BODY STYLE AAQL | — |
| MOUNTING METHOD AXGY | BULB CLAMP |
| 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 |
| REFRIGERATION CAPACITY IN BTU PER HOUR AGUB | 15.6 |
| FIRST END CONNECTION TYPE ACKM | UNTHREADED INTERNAL TUBE |
| FIRST END STYLE DESIGNATOR ACKN | — |
| MATERIAL MATT | SEAT COPPER ALLOY |
| SECOND END STYLE DESIGNATOR ACLT | — |
| MEDIA FOR WHICH DESIGNED MEDA | LOCATION NOT OTHERWISE SPECIFIED REFRIGERANT 12 |
| MATERIAL MATT | BODY COPPER ALLOY |
| MATERIAL MATT | FLOW CONTROL DEVICE STEEL |
| SPECIAL FEATURES FEAT | FURN W/BULB CLAMPS AND INSTRUCTION SHEET; SAFE WORKING PRESSURE 450.0 PSIG |
| FIRST END OUTSIDE DIAMETER TUBE ACCOMMODATED ACLH | INCHES NOMINAL 0.500 |
| SECOND END OUTSIDE DIAMETER TUBE ACCOMMODATED ACMP | INCHES NOMINAL 0.625 |
| FLOW CONTROL DEVICE ADQU | DISK, TOP GUIDED |
| END CONNECTION QUANTITY ADQZ | 2 |
| CAPILLARY TUBE LENGTH AEVT | INCHES NOMINAL 240.000 |
| BULB LENGTH AEVU | INCHES NOMINAL 4.812 |
| BULB DIAMETER AEVV | INCHES NOMINAL 0.625 |
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
—
Purchases
0
Total spend
—
—
Last purchased
—
Purchase records
—
Total demand
—
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.
No related contract actions on record.
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.
| 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.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,EXPANSION." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-00-256-6684/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4820-00-256-6684/