Acquisition method (AMC)
1
FSC 4730 × NUT,TUBE COUPLING
NUT,TUBE COUPLING
4730-00-001-3956 FSC 4730
NSN 4730-00-001-3956 (also written 4730000013956; NIIN 00-001-3956) is a nut, tube coupling in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 11 manufacturer part numbers from 4 suppliers are on record. No purchases are on record yet.
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)
Q
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC Q: the government lacks adequate data or rights, but breakout to competition is expected. 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 | 3B |
| THREAD DIRECTION AAJF | RIGHT-HAND |
| FABRICATION METHOD AARN | MACHINED |
| NUT STYLE ACTA | — |
| NUT HEIGHT ADEA | INCHES MINIMUM 0.650 AND INCHES MAXIMUM 0.670 |
| END ITEM IDENTIFICATION AGAV | AIRCRAFT, PROWLER EA=6B |
| WIDTH ACROSS FLATS ASDB | INCHES MINIMUM 0.557 AND INCHES MAXIMUM 0.567 |
| LENGTH TO SHOULDER BRQL | INCHES MINIMUM 0.515 AND INCHES MAXIMUM 0.535 |
| SMALLEST INSIDE DIAMETER BSPX | INCHES MINIMUM 0.317 AND INCHES MAXIMUM 0.320 |
| THREAD SERIES BZRR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH CMLP | 20 |
| NOMINAL THREAD SIZE CQJX | INCHES 0.438 |
| NOMINAL TUBE OUTSIDE DIAMETER CQRJ | INCHES 0.250 |
| SEAT ANGLE CRRB | DEGREES NOMINAL 45.00 |
| SPECIAL FEATURES FEAT | 3000 PSI OPERATING PRESSURE AT MAX OF 275 DEGREES |
| MATERIAL MATT | OVERALL STEEL COMP 304 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | OVERALL FED SPEC SINGLE MATERIAL RESPONSE QQ-S-763 QQ-S-763 |
| SURFACE TREATMENT SFTT | OVERALL PASSIVATE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION STDC | OVERALL MIL SPEC SINGLE TREATMENT RESPONSE -IL-S-5002 |
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 |
|---|---|---|
| AC1170C04 | 00624 | EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION |
| D10006-04 | 14798 | DESIGNED METAL CONNECTIONS INC DBA PERMASWAGE USA DIV PERMASWAGE, A PCC COMPANY |
| D10006-4 | 00624 | EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION |
| D10006-4 | 14798 | DESIGNED METAL CONNECTIONS INC DBA PERMASWAGE USA DIV PERMASWAGE, A PCC COMPANY |
| D10006-J04 | 14798 | DESIGNED METAL CONNECTIONS INC DBA PERMASWAGE USA DIV PERMASWAGE, A PCC COMPANY |
| H10006-04 | 08199 | STANLEY HARRISON CORPORATION |
| H10006J04 | 00624 | EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION |
| H10006J04 | 08199 | STANLEY HARRISON CORPORATION |
| LD83096-4 | 00624 | EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION |
| ST57D100 | 04236 | LOCKHEED MARTIN CORP |
| ST57D100-1 | 04236 | LOCKHEED MARTIN CORP |
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 | |
|---|---|---|---|---|---|
| SPE7M3-26-T-9528 | Sep 29, 2026 | Oct 15, 2026 | 118 | 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.
- Full methodology →
Cite this page
Citation
NSN Explorer. "NUT,TUBE COUPLING." nsnexplorer.com, https://nsnexplorer.com/nsn/4730-00-001-3956/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4730-00-001-3956/