Acquisition method (AMC)
1
FSC 4730 × COUPLING,TUBE
COUPLING,TUBE
4730-00-757-4521 FSC 4730
NSN 4730-00-757-4521 (also written 4730007574521; NIIN 00-757-4521) is a coupling, tube in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 7 manufacturer part numbers from 6 suppliers are on record. It was last purchased in Aug 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 |
|---|---|
| NOMINAL OVERALL LENGTH CWFR | INCHES 0.191 |
| CONNECTION STYLE AHNC | — |
| SPECIAL FEATURES FEAT | CIRCULAR FLANGE CENTERED |
| STYLE DESIGNATOR STYL | — |
| CONNECTION TYPE AWLS | ALL ENDS UNTHREADED EXTERNAL TUBE |
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 |
|---|---|---|
| 4730PL0911524 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX |
| 6813337 | 24617 | GENERAL MOTORS CORP |
| 6813337 | 73342 | ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC |
| 6857509 | 06320 | NUMET ACQUISITION AEROCISION, INC. |
| 6857509 | 63005 | ROLLS-ROYCE CORPORATION |
| 6857509 | 66905 | PACIFIC SKY SUPPLY, INC. DBA PACIFIC SKY SUPPLY INC |
| 6857509 | 73342 | ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC |
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
$55.00
Purchases
1
Total spend
$13,475
Aug 13, 2026
Last purchased
2 · 2.0/yr
Purchase records
$26,950
Total demand
$55.00
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Aug 13, 2026 | 245 | $55.00 | $13,475 | PACIFIC SKY SUPPLY, INC. DBA PACIFIC SKY SUPPLY INC (66905) | 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 |
|---|---|---|---|---|
| Aug 13, 2026 | SPE7M326V4132 ↗ | PACIFIC SKY SUPPLY, INC. DBA PACIFIC SKY SUPPLY INC | — | $13,475 |
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
PACIFIC SKY SUPPLY, INC. DBA PACIFIC SKY SUPPLY INC
last award Aug 2026
ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC
no award yet
no awards on record
Listed source GENERAL MOTORS CORP
no award yet
no awards on record
Listed source JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX
no award yet
no awards on record
Listed source NUMET ACQUISITION AEROCISION, INC.
no award yet
no awards on record
Listed source ROLLS-ROYCE CORPORATION
no award yet
no awards on record
Listed source PACIFIC SKY SUPPLY, INC. DBA PACIFIC SKY SUPPLY INC won the only award on record.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7M3-26-T-7919 | Aug 7, 2026 | Aug 17, 2026 | 245 | 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: 2026-11-03.
- Full methodology →
Cite this page
Citation
NSN Explorer. "COUPLING,TUBE." nsnexplorer.com, https://nsnexplorer.com/nsn/4730-00-757-4521/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4730-00-757-4521/