The Coupling,tube, cataloged under National Stock Number 4730-00-280-1945, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Smiths Tubular Systems-Laconia, Inc.. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-280-1945 |
| Primary Part Number | TF440T12 |
| Item Name | Coupling,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Smiths Tubular Systems-Laconia, Inc. |
| Status | ACTIVE |
| Connection Style | CUSHION SEAL (TUBE) SECOND END |
| Connection Style | SOCKET (HOSE) FIRST END |
| Nominal Overall Length | 1.219 INCHES IN |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Style Designator | RIGID, SHORT CENTER WRENCHING FACILITY |
| Material Document and Classification | AMS 4965,6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL V |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES FIRST END IN |
| Nominal Thread Size | 1.000 INCHES SECOND END IN |
| Seat Angle | 8.5 DEGREES SECOND END |
| Thread Class | 3A SECOND END A |
| Thread Quantity Per Inch | 16 SECOND END |
| Material | TITANIUM ALLOY UNS R54520 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) SECOND END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| TF440T12 PRIMARY | Smiths Tubular Systems-Laconia, Inc. (USA) |
| AP440T12 PRIMARY | Sps Technologies, Llc Dba Airdrome Precision Components (USA) |
| MR54104T-12 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division (USA) |
| MR54100T12 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division (USA) |
| 7M524T12 | The Boeing Company Div Defense (USA) |
| AE16824-12 | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| GC550EY12 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| JCM-11498-015 | C/1 Advisory reference — outside the item-of-supply concept Strike Weapons and Unmanned Aviation |
| 4730PL0890084 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| AE16169-12 | 5/9 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| 4730PL1755937 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 7M524 | D/9 Drawing number reference only The Boeing Company Div Defense |
| 10108340 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| ST7M202T12 | 5/9 Secondary reference The Boeing Company Div Defense |
NSN 4730-00-280-1945 is a Coupling,tube, manufactured by Smiths Tubular Systems-Laconia, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-280-1945 has 7 manufacturer part numbers on file: TF440T12 (Smiths Tubular Systems-Laconia, Inc.), AP440T12 (Sps Technologies, Llc Dba Airdrome Precision Components), MR54104T-12 (Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division), MR54100T12 (Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division), 7M524T12 (The Boeing Company Div Defense) and 2 more.
1 possible match (shared part number, not a government interchangeability claim): 4730-00-283-6399. Verify interchangeability with system specifications before substitution.
Key specifications for TF440T12: Connection Style: CUSHION SEAL (TUBE) SECOND END; Connection Style: SOCKET (HOSE) FIRST END; Nominal Overall Length: 1.219 INCHES IN; Connection Type: UNTHREADED INTERNAL TUBE FIRST END. 15 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.