Acquisition method (AMC)
3
FSC 4730 × FLANGE,PIPE
FLANGE,PIPE
4730-01-326-4539 FSC 4730
NSN 4730-01-326-4539 (also written 4730013264539; NIIN 01-326-4539) is a flange, pipe in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 4 manufacturer part numbers from 2 suppliers are on record. The government has 1 open solicitation for it.
Open for bid
1 open solicitation on record right now — quantity, close date, and where to submit.
| Solicitation | Qty | Status | |
|---|---|---|---|
| SPE7M3-27-Q-0027 | 3 | Closes in 2d | Bid → |
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 |
|---|---|
| BOLT CIRCLE DIAMETER ABKG | INCHES NOMINAL 6.000 |
| FLANGE DIAMETER ABKK | INCHES NOMINAL 7.000 |
| THICKNESS ABNM | INCHES NOMINAL 0.500 |
| SOCKET DIAMETER ABXP | INCHES MINIMUM 1.315 AND INCHES MAXIMUM 1.318 |
| BORE DIAMETER ABXV | INCHES NOMINAL 1.172 |
| NOMINAL PIPE SIZE FOR WHICH DESIGNED ACSU | INCHES 1.000 |
| BOLT HOLE QUANTITY AECS | 4 |
| BOLT HOLE DIAMETER AHNX | INCHES NOMINAL 0.375 |
| NECK HEIGHT AJEG | INCHES NOMINAL 0.625 |
| FLANGE SECTION STYLE AJEM | — |
| FACE SEATING SURFACE CONDITION AKWE | MACHINED |
| MATERIAL MATT | COPPER ALLOY |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | FED SPEC SINGLE MATERIAL RESPONSE QQ-C-390,ALLOY D5,TY 3 QQ-C-390 |
| STYLE DESIGNATOR STYL | — |
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 |
|---|---|---|
| 2621-228-01 | 96169 | ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT |
| 2621-228-01 PIECE 179 | 96169 | ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT |
| 4685790 ITEM 16 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| 510-4685790 ITE | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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 | |
|---|---|---|---|---|---|
| SPE7M3-27-Q-0027 | Nov 6, 2026 | Nov 10, 2026 | 3 | Open | 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 Nov 8, 2026.
- Contract action totals: USAspending, context only.
- Full methodology →
Cite this page
Citation
NSN Explorer. "FLANGE,PIPE." nsnexplorer.com, https://nsnexplorer.com/nsn/4730-01-326-4539/. Data as of November 8, 2026.
Link
https://nsnexplorer.com/nsn/4730-01-326-4539/