Acquisition method (AMC)
1
FSC 4730 × TAILPIECE,UNION
TAILPIECE,UNION
4730-01-534-4845 FSC 4730
NSN 4730-01-534-4845 (also written 4730015344845; NIIN 01-534-4845) is a tailpiece, union in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Nov 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)
G
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC G: the government has a complete data package and the rights to use it. 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 |
|---|---|
| END CONNECTION TYPE AWZY | BRAZED |
| UNION OUTSIDE DIAMETER CGNK | INCHES NOMINAL 1.975 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY CXCY | TAILPIECE ASSEMBLY |
| SPECIAL FEATURES FEAT | BRONZE TAILPIECE, UNION NUT, RETAINING RING; NITRILE O'RING; O'RING MATERIAL SETS TEMPERATURE AND PRESSURE LIMITS |
| MATERIAL MATT | COPPER ALLOY |
| OVERALL LENGTH ABHP | INCHES NOMINAL 1.299 |
| NOMINAL PIPE SIZE DESIGNATION AAGN | INCHES 1.000 |
| END ITEM IDENTIFICATION AGAV | SHIP,VALVES |
| SEAT TYPE BYJF | GASKET |
| FLANGE OUTSIDE DIAMETER AHTC | INCHES NOMINAL 1.778 |
| FLANGE THICKNESS ABKU | INCHES NOMINAL 0.180 |
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 |
|---|---|---|
| 505-7526642ITEMF-22 | 43689 | HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING |
| 803-7063850-B531 | 53711 | NAVAL SEA 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
$87.55
Purchases
1
Total spend
$1,051
Nov 4, 2026
Last purchased
2 · 2.0/yr
Purchase records
$2,101
Total demand
$87.55
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Nov 4, 2026 | 12 | $87.55 | $1,051 | BEC SYSTEMS LLC DBA BEC MACHINE PRODUCTS (0JC12) | 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 |
|---|---|---|---|---|
| Nov 4, 2026 | SPE7M327P0186 ↗ | BEC SYSTEMS LLC DBA BEC MACHINE PRODUCTS | — | $1,051 |
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
BEC SYSTEMS LLC DBA BEC MACHINE PRODUCTS
last award Nov 2026
HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING
no award yet
no awards on record
Listed source NAVAL SEA SYSTEMS COMMAND
no award yet
no awards on record
Listed source BEC SYSTEMS LLC DBA BEC MACHINE PRODUCTS won the only award on record. BEC SYSTEMS LLC DBA BEC MACHINE PRODUCTS won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7M3-26-T-8207 | Aug 13, 2026 | Sep 1, 2026 | 12 | 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: 2026-11-05.
- Full methodology →
Cite this page
Citation
NSN Explorer. "TAILPIECE,UNION." nsnexplorer.com, https://nsnexplorer.com/nsn/4730-01-534-4845/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4730-01-534-4845/