The Screw Adjust Bypass, cataloged under National Stock Number 2840-01-644-8977, is classified within Federal Supply Class 2840 (Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Boeing Distribution, Inc.. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-01-644-8977 |
| Primary Part Number | 3010T18P01 |
| Item Name | Screw Adjust Bypass |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Boeing Distribution, Inc. |
| Status | ACTIVE |
| Overall Diameter | 0.210 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Supplementary Features | HEX HEAD 0.937-.0947" BOTTOM: .184-.186" DIAMETER |
| Functional Description | MATERIAL: AMS 5640 CORROSION RESISTANT STEEL |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 3010T18P01 | Boeing Distribution, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3010T18P01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2840-01-644-8977 is a Screw Adjust Bypass, manufactured by Boeing Distribution, Inc., classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-01-644-8977 has 1 manufacturer part number on file: 3010T18P01 (Boeing Distribution, Inc.).
Key specifications for 3010T18P01: Overall Diameter: 0.210 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN; Supplementary Features: HEX HEAD 0.937-.0947" BOTTOM: .184-.186" DIAMETER; Overall Length: 2.36 INCHES MINIMUM AND 2.38 INCHES MAXIMUM IN; Special Features: THD .190-32 UNF-3A A. 4 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.