Acquisition method (AMC)
1
FSC 4730 × REDUCER,TUBE
REDUCER,TUBE
4730-01-256-7147 FSC 4730
NSN 4730-01-256-7147 (also written 4730012567147; NIIN 01-256-7147) is a reducer, tube in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 4 manufacturer part numbers from 4 suppliers 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 as suitable for competitive acquisition (AMC 1).
Suffix (AMSC)
C
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC C: needs engineering source approval; other sources must qualify first. 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 |
|---|---|
| THREAD CLASS AAJD | 3A |
| REDUCER TYPE ACSP | CONCENTRIC |
| CONNECTION STYLE AHNC | — |
| CONNECTION TYPE AWLS | ALL ENDS THREADED EXTERNAL TUBE |
| NOMINAL THREAD SIZE CQJX | FIRST END INCHES 0.562 |
| NOMINAL THREAD SIZE CQJX | SECOND END INCHES 0.438 |
| SEAT ANGLE CQRB | SECOND END DEGREES 37.0 |
| NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED CWFD | SECOND END INCHES 0.250 |
| NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED CWFD | FIRST END INCHES 0.375 |
| NOMINAL OVERALL LENGTH CWFR | INCHES 1.560 |
| MATERIAL MATT | OVERALL STEEL COMP 316 |
| THREAD SERIES DESIGNATOR THSD | SECOND END UNIFIED NATIONAL JOINT FINE (UNJF) |
| FURNISHED ITEMS AND QUANTITY TMQY | SHORT COUPLING NUT WITH SLEEVE 1 |
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 |
|---|---|---|
| 11454766-3 | 18876 | US ARMY AVIATION AND MISSILE COMMAND |
| 434994 | 01014 | AVTRON AEROSPACE INC |
| 4XASC6-316 | 30780 | PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV TUBE FITTINGS DIVISION |
| SS-600-6-4AN | 3T9T9 | SWAGELOK CO |
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 24, 2026
Last purchased
1 · 1.0/yr
Purchase records
$1,537
Total demand
$1,537
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 24, 2026 | SPE7M326V3945 ↗ | III WILLIAMS LLC | — | $1,537 |
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
III WILLIAMS LLC
last award Sep 2026
AVTRON AEROSPACE INC
no award yet
no awards on record
Listed source PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV TUBE FITTINGS DIVISION
no award yet
no awards on record
Listed source SWAGELOK CO
no award yet
no awards on record
Listed source US ARMY AVIATION AND MISSILE COMMAND
no award yet
no awards on record
Listed source III WILLIAMS LLC won the only award on record. III WILLIAMS 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. "REDUCER,TUBE." nsnexplorer.com, https://nsnexplorer.com/nsn/4730-01-256-7147/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4730-01-256-7147/