The Tube Assembly,metal, cataloged under National Stock Number 4710-00-986-8191, 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 Mission Systems Orchard Park Inc. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-00-986-8191 |
| Primary Part Number | 904381 |
| Item Name | Tube Assembly,metal |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Mission Systems Orchard Park Inc |
| Status | ACTIVE |
| Seat Angle in Deg | 37.0 SINGLE END |
| Design Form | PREBENT |
| Mating End Quantity | 2 SINGLE END |
| Thread Direction | RIGHT-HAND SINGLE END |
| Nominal Thread Size | 0.500 INCHES SINGLE END IN |
| End Connection Style | SWIVEL NUT, FLARED SINGLE END |
| Tube Outside Diameter | 0.312 INCHES NOMINAL IN |
| Thread Class | 3B SINGLE END |
| Material | ALUMINUM ALLOY TUBING |
| Material | ALUMINUM ALLOY SINGLE END |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) SINGLE END |
| End Connection Spec/std | MS20819-5D,AN818-5D |
| 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 |
|---|---|
| 904381 PRIMARY | Mission Systems Orchard Park Inc (USA) |
| Reference | Meaning |
|---|---|
| 904381 | 5/9 Secondary reference Ingersoll-Rand Company Dba Ingersoll-Rand |
| 8148650 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4710-00-986-8191 is a Tube Assembly,metal, manufactured by Mission Systems Orchard Park Inc, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-00-986-8191 has 1 manufacturer part number on file: 904381 (Mission Systems Orchard Park Inc).
Key specifications for 904381: Seat Angle in Deg: 37.0 SINGLE END; Design Form: PREBENT; Mating End Quantity: 2 SINGLE END; Thread Direction: RIGHT-HAND SINGLE END. 12 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.