The Tube Assembly,metal, cataloged under National Stock Number 4710-01-302-5083, 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 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4710-01-302-5083 |
| Primary Part Number | A55E10221-81 |
| Item Name | Tube Assembly,metal |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Seat Angle in Deg | 33.0 SINGLE END |
| Design Form | PREBENT |
| Mating End Quantity | 1 SECOND END |
| Mating End Quantity | 1 FIRST END |
| Material Document and Classification | AMS 4071 ASSN STD SINGLE MATERIAL RESPONSE TUBING |
| Wall Thickness | 0.028 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND SINGLE END |
| Nominal Thread Size | 0.750 INCHES SINGLE END IN |
| End Connection Style | UNTHREADED INTERNAL SECOND END |
| End Connection Style | SWIVEL NUT WITH COMPRESSION SLEEVE FIRST END |
| Tube Outside Diameter | 0.500 INCHES NOMINAL IN |
| Thread Class | 3B SINGLE END |
| Material | ALUMINUM ALLOY SINGLE END |
| Material | ALUMINUM ALLOY 5052 TUBING |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) SINGLE END |
| End Connection Spec/std | MIL,MS20819,PART NO.MS20819-8D AND ANA,AN818,PART NO.AN818-8D |
| 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 |
|---|---|
| A55E10221-81 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A55E10221 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
| A55E10221-81 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation |
NSN 4710-01-302-5083 is a Tube Assembly,metal, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-01-302-5083 has 1 manufacturer part number on file: A55E10221-81 (Northrop Grumman Systems Corporation).
3 possible matches (shared part number, not a government interchangeability claim): 4710-01-350-6734, 4710-01-373-8642, 4710-01-373-8643. Verify interchangeability with system specifications before substitution.
Key specifications for A55E10221-81: Seat Angle in Deg: 33.0 SINGLE END; Design Form: PREBENT; Mating End Quantity: 1 SECOND END; Mating End Quantity: 1 FIRST END. 16 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.