Acquisition method (AMC)
3
FSC 4730 × INVERTED NUT,TUBE COUPLING
INVERTED NUT,TUBE COUPLING
4730-00-278-8821 FSC 4730
NSN 4730-00-278-8821 (also written 4730002788821; NIIN 00-278-8821) is an inverted nut, tube coupling in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 8 manufacturer part numbers from 8 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 to be bought directly from the actual manufacturer (AMC 3).
Suffix (AMSC)
L
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC L: annual buy value is below the screening threshold. 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 |
|---|---|
| CASEHARDENING INDICATOR AASG | NOT CASE-HARDENED |
| SMALLEST INSIDE DIAMETER BSPX | INCHES NOMINAL 0.628 |
| OVERALL LENGTH ABHP | INCHES NOMINAL 0.781 |
| THREAD SIZE ABUJ | 7/8-18 |
| THREAD CLASS AAJD | 2A |
| THREAD DIRECTION AAJF | RIGHT-HAND |
| FABRICATION METHOD AARN | BAR STOCK, MACHINED |
| MATERIAL MATT | COPPER ALLOY |
| STYLE DESIGNATOR STYL | — |
| SEAT RADIUS AJFZ | INCHES NOMINAL 0.438 |
| SCREW THREAD SERIES DESIGNATOR AJYP | UNS |
| WIDTH ACROSS FLATS ASDB | INCHES NOMINAL 1.000 |
| TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED ACSV | 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 |
|---|---|---|
| 10-050110 | 01276 | DANFOSS POWER SOLUTIONS II, LLC DIV FLUID CONVEYANCE |
| 10-050110 | 30327 | IMPERIAL |
| 10-050110 | 79470 | DANA CORP WEATHERHEAD DIV |
| 10-050110 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |
| 10-050110 | 86025 | C-S BRASS MFG CO INC |
| 1060-5-8 | 80871 | GEA WESTFALIA SEPARATOR, INC. DIV GEA WESTFALIA SEPARATOR, INC. |
| 1060-5-8 | 89153 | SIVERSEN COLUMBIA MACHINE WORKS INC |
| 125633 | 21450 | ARMY WEAPONS COMMAND ATTN AMSWE-REE-S |
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 | |
|---|---|---|---|---|---|
| SPE7M3-26-T-9146 | Sep 17, 2026 | Sep 28, 2026 | 1 | 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. "INVERTED NUT,TUBE COUPLING." nsnexplorer.com, https://nsnexplorer.com/nsn/4730-00-278-8821/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4730-00-278-8821/