Acquisition method (AMC)
3
FSC 4820 × VALVE,EXPANSION
VALVE,EXPANSION
4820-01-056-2991 FSC 4820
NSN 4820-01-056-2991 (also written 4820010562991; NIIN 01-056-2991) is a valve, expansion in Federal Supply Class 4820, Valves, Nonpowered. 3 manufacturer part numbers from 1 supplier 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 |
|---|---|
| BODY STYLE AAQL | — |
| FURNISHED ITEMS ABFF | VALVE PRESSURE LIMITING DEVICE |
| 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 |
| FLOW CONTROL DEVICE ADQU | STEM AND INTEGRAL DISK |
| END CONNECTION QUANTITY ADQZ | 2 |
| MOUNTING METHOD AXGY | BULB CLAMP |
| MATERIAL MATT | SEAT COPPER ALLOY |
| MATERIAL MATT | FLOW CONTROL DEVICE STEEL COMP 304 |
| MATERIAL MATT | BODY COPPER ALLOY |
| MATERIAL MATT | STEM STEEL COMP 410 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | STEM FED STD SINGLE MATERIAL RESPONSE FED STD 66 OR ASSN STD SINGLE MATERIAL RESPONSE AISI 410 OR ASSN STD SINGLE MATERIAL RESPONSE SAE 51410 SAE 51410 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | FLOW CONTROL DEVICE FED STD SINGLE MATERIAL RESPONSE FED STD 66 OR ASSN STD SINGLE MATERIAL RESPONSE AISI 304 OR ASSN STD SINGLE MATERIAL RESPONSE SAE 30304 SAE 30304 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | SEAT FED SPEC SINGLE MATERIAL RESPONSE AST- B124, ALLOY NO. 2 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | BODY FED SPEC SINGLE MATERIAL RESPONSE AST- B124, ALLOY NO. 2 |
| MEDIA FOR WHICH DESIGNED MEDA | LOCATION NOT OTHERWISE SPECIFIED REFRIGERANT 22 |
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 |
|---|---|---|
| TCLE 1/2 HC | 70255 | EMERSON ELECTRIC CO ALCO CONTROLS DIV |
| TCLE1/2HW | 70255 | EMERSON ELECTRIC CO ALCO CONTROLS DIV |
| TCLE50HW | 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
—
Sep 17, 2026
Last purchased
1 · 1.0/yr
Purchase records
$502.52
Total demand
$502.52
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 17, 2026 | SPE7MC26V4495 ↗ | MAKPAK, LLC DBA MAKPAK LLC | — | $502.52 |
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
MAKPAK, LLC DBA MAKPAK LLC
last award Sep 2026
EMERSON ELECTRIC CO ALCO CONTROLS DIV
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.
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: 2026-09-27.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,EXPANSION." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-056-2991/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-056-2991/