The Tube and Fittings,metallic, cataloged under National Stock Number 4710-01-238-4289, 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 Northrop Grumman Systems Corporation. Government technical data includes 14 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-01-238-4289 |
| Primary Part Number | A51L21103-85 |
| Item Name | Tube and Fittings,metallic |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Seat Angle in Deg | 8.5 SINGLE END |
| Design Form | PREBENT |
| Mating End Quantity | 2 SINGLE END |
| Material Document and Classification | TI3AL-2.5V, GRUMMAN AEROSPACE CORP MFR REF SINGLE MATERIAL RESPONSE ALL ENDS V |
| Material Document and Classification | TI3AL-2.5V, GRUMMAN AEROSPACE CORP MFR REF SINGLE MATERIAL RESPONSE TUBING V |
| Wall Thickness | 0.073 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND SINGLE END |
| Nominal Thread Size | 1.250 INCHES SINGLE END IN |
| End Connection Style | SWIVEL NUT, INVERTED FLARE SINGLE END |
| Tube Outside Diameter | 1.000 INCHES NOMINAL IN |
| Thread Class | 3B SINGLE END |
| Material | TITANIUM ALLOY SINGLE END |
| Material | TITANIUM TUBING |
| Thread Series Designator | UNJS SINGLE END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| A51L21103-85 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51L21103-85 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| A51L21103-85 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| A51L21103 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
NSN 4710-01-238-4289 is a Tube and Fittings,metallic, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-01-238-4289 has 1 manufacturer part number on file: A51L21103-85 (Northrop Grumman Systems Corporation).
4 possible matches (shared part number, not a government interchangeability claim): 4710-01-238-4290, 4710-01-238-4291, 4710-01-259-1660. Verify interchangeability with system specifications before substitution.
Key specifications for A51L21103-85: Seat Angle in Deg: 8.5 SINGLE END; Design Form: PREBENT; Mating End Quantity: 2 SINGLE END; Material Document and Classification: TI3AL-2.5V, GRUMMAN AEROSPACE CORP MFR REF SINGLE MATERIAL RESPONSE ALL ENDS V. 14 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 4710-01-238-4289 has DEMIL Code B. 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.