The Tube Assembly,metal, cataloged under National Stock Number 4710-00-003-6503, is classified within Federal Supply Class 4710 (Pipe, Tube and Rigid Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4710-00-003-6503 |
| Item Name | Tube Assembly,metal |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Status | ACTIVE |
| Seat Angle in Deg | 33.0 SINGLE END |
| Design Form | PREBENT |
| Mating End Quantity | 2 SINGLE END |
| Material Document and Classification | MIL-T-8504, COMP 304 MIL SPEC SINGLE MATERIAL RESPONSE OR FED STD 66, COMP 304 FED STD SINGLE MATERIAL RESPONSE TUBING |
| Wall Thickness | 0.020 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.438 INCHES SINGLE END IN |
| End Connection Style | SWIVEL NUT, FLARED SINGLE END |
| Tube Outside Diameter | 0.250 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN |
| Thread Class | 3B SINGLE END |
| Material | STEEL CORROSION RESISTING SINGLE END |
| Material | STEEL COMP 304 OR STEEL COMP 304 TUBING |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) SINGLE END |
| End Connection Spec/std | AN818-4J |
| 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 |
| Reference | Meaning |
|---|---|
| 364817-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4710-00-003-6503 is a Tube Assembly,metal, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4720-01-569-7920. Verify interchangeability with system specifications before substitution.
Key specifications for 4710-00-003-6503: Seat Angle in Deg: 33.0 SINGLE END; Design Form: PREBENT; Mating End Quantity: 2 SINGLE END; Material Document and Classification: MIL-T-8504, COMP 304 MIL SPEC SINGLE MATERIAL RESPONSE OR FED STD 66, COMP 304 FED 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.
NSN 4710-00-003-6503 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.