Acquisition method (AMC)
2
FSC 4730 × COUPLING HALF,QUICK DISCONNECT
COUPLING HALF,QUICK DISCONNECT
4730-00-903-4451 FSC 4730
NSN 4730-00-903-4451 (also written 4730009034451; NIIN 00-903-4451) is a coupling half, quick disconnect in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 3 manufacturer part numbers from 3 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 2).
Suffix (AMSC)
C
Competition
Coded for competition
AMC 2: suitable for competitive acquisition, first 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 |
| OVERALL LENGTH ABHP | INCHES MINIMUM 3.335 AND INCHES MAXIMUM 3.554 |
| QUICK DISCONNECT METHOD ADLN | ALL ENDS TWIST-LOCK |
| QUICK DISCONNECT NOMINAL SIZE ADLP | ALL ENDS INCHES 0.984 |
| CONNECTION STYLE AHNC | — |
| LEG LENGTH AHSJ | INCHES NOMINAL 0.970 |
| CONNECTION TYPE AWLS | ALL ENDS QUICK DISCONNECT EXTERNAL |
| CONNECTION TYPE AWLS | FIRST FLUID END CONNECTION THREADED EXTERNAL TUBE |
| FEATURES PROVIDED CBBL | SAFETY LOCKING FEATURE |
| NOMINAL THREAD SIZE CQJX | ALL ENDS INCHES 0.438 |
| SEAT ANGLE CQRB | DEGREES 12.0 |
| NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED CWFD | ALL ENDS INCHES 0.250 |
| SPECIAL FEATURES FEAT | BULKHEAD THREADS ON FLUID END CONNECTION |
| MATERIAL MATT | BODY ALUMINUM ALLOY |
| SURFACE TREATMENT SFTT | BODY ANODIZE |
| STYLE DESIGNATOR STYL | — |
| THREAD SERIES DESIGNATOR THSD | ALL ENDS UNF |
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 |
|---|---|---|
| 210-82234-9 | 80378 | TRIUMPH AEROSTRUCTURES, LLC DBA TRIUMPH AEROSTRUCTURES - VOUGHT INTEGRATED PROGRAMS DIVISION |
| 3302-4 | 00624 | EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION |
| M9115DCD201 | 6L817 | NATIONAL MACHINE COMPANY DBA NMG AEROSPACE |
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 21, 2026
Last purchased
1 · 1.0/yr
Purchase records
$211,932
Total demand
$211,932
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 21, 2026 | SPE7M426D60JC/SPE7M526F2791 ↗ | — | — | $211,932 |
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
CAGE 7QEZ4
last award Sep 2026
EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION
no award yet
no awards on record
Listed source NATIONAL MACHINE COMPANY DBA NMG AEROSPACE
no award yet
no awards on record
Listed source TRIUMPH AEROSTRUCTURES, LLC DBA TRIUMPH AEROSTRUCTURES - VOUGHT INTEGRATED PROGRAMS DIVISION
no award yet
no awards on record
Listed source CAGE 7QEZ4 won the only award on record. CAGE 7QEZ4 won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7M1-26-T-281Z | Aug 14, 2026 | Aug 24, 2026 | 221 | Cancelled | 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: 2026-09-29.
- Full methodology →
Cite this page
Citation
NSN Explorer. "COUPLING HALF,QUICK DISCONNECT." nsnexplorer.com, https://nsnexplorer.com/nsn/4730-00-903-4451/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4730-00-903-4451/