The Tube Assembly,metal, cataloged under National Stock Number 4710-00-313-3504, 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 Rolls-Royce Corporation. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-00-313-3504 |
| Primary Part Number | 6870704 |
| Item Name | Tube Assembly,metal |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Design Form | PREBENT |
| Mating End Quantity | 2 SINGLE END |
| Material Document and Classification | AMS 5557 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5570 ASSN STD SINGLE MATERIAL RESPONSE TUBING |
| Wall Thickness | 0.028 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN |
| End Connection Style | PLAIN SECOND END |
| End Connection Style | UNTHREADED EXTERNAL FIRST END |
| Tube Outside Diameter | 0.371 INCHES MINIMUM AND 0.379 INCHES MAXIMUM IN |
| Material | STEEL COMP 30321 OR STEEL COMP 321 TUBING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6870704 | Pacific Sky Supply, Inc. Dba Pacific Sky Supply Inc (USA) |
| 6870704 PRIMARY | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| 6870704 | 5/9 Secondary reference U.S. Government activity |
| 6870704 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
| 6870704 | 5/9 Secondary reference Tomco Machining Inc. Dba Crossroads and Tomco Machining Do Not Reinstate This Code Co Has Filed Bankruptcy |
| 6870704 | 5/9 Secondary reference Apex Precision Technologies, Inc. |
| 6870704 | 5/9 Secondary reference Tube Forming and Mfg Corp |
| 6870704 | 5/9 Secondary reference Tomco Machining, Inc. |
NSN 4710-00-313-3504 is a Tube Assembly,metal, manufactured by Rolls-Royce Corporation, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-00-313-3504 has 2 manufacturer part numbers on file: 6870704 (Pacific Sky Supply, Inc. Dba Pacific Sky Supply Inc), 6870704 (Rolls-Royce Corporation).
Key specifications for 6870704: Design Form: PREBENT; Mating End Quantity: 2 SINGLE END; Material Document and Classification: AMS 5557 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5570 ASSN STD SINGLE MATERIAL RESPONSE TUBING; Overall Length: 28.100 INCHES MINIMUM AND 29.100 INCHES MAXIMUM IN. 8 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.
NSN 4710-00-313-3504 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.