The Tube Assembly,metal, cataloged under National Stock Number 4710-00-709-8656, is classified within Federal Supply Class 4710 (Pipe, Tube and Rigid Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-00-709-8656 |
| Primary Part Number | 6865680 |
| Item Name | Tube Assembly,metal |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Seat Angle in Deg | 37.0 SINGLE END |
| Design Form | PREBENT |
| Mating End Quantity | 2 SINGLE END |
| Material Document and Classification | AMS 5571 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5556 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5570 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5557 ASSN STD SINGLE MATERIAL RESPONSE TUBING |
| Wall Thickness | 0.025 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND SINGLE END |
| Nominal Thread Size | 0.438 INCHES SINGLE END IN |
| End Connection Style | FLARE SINGLE END |
| Tube Outside Diameter | 0.246 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN |
| Thread Class | 3B SINGLE END |
| Material | STEEL CORROSION RESISTING SINGLE END |
| Material | STEEL COMP 347 OR STEEL COMP 347 OR STEEL COMP 321 OR STEEL COMP 30321 TUBING |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) SINGLE 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 |
|---|---|
| 6865680 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| Reference | Meaning |
|---|---|
| AP6865680 | 5/9 Secondary reference Apex Precision Technologies, Inc. |
NSN 4710-00-709-8656 is a Tube Assembly,metal, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-00-709-8656 has 1 manufacturer part number on file: 6865680 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 6865680: Seat Angle in Deg: 37.0 SINGLE END; Design Form: PREBENT; Mating End Quantity: 2 SINGLE END; Material Document and Classification: AMS 5571 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5556 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5570 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5557 ASSN STD SINGLE MATERIAL RESPONSE TUBING. 13 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.