The Screw,shoulder, cataloged under National Stock Number 5305-00-070-1791, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Ge Aviation Systems Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-070-1791 |
| Primary Part Number | 311188-01 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Ge Aviation Systems Llc |
| Status | ACTIVE |
| Head Height | 0.031 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN |
| Fastener Length | 0.187 INCHES NOMINAL IN |
| Shoulder Length | 0.050 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.069 INCHES MINIMUM AND 0.070 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.137 INCHES MINIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.060 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 80 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.100 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 311188-01 PRIMARY | Ge Aviation Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| 2000300621 | 5/9 Secondary reference Ge Aviation Systems Llc |
NSN 5305-00-070-1791 is a Screw,shoulder, manufactured by Ge Aviation Systems Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-070-1791 has 1 manufacturer part number on file: 311188-01 (Ge Aviation Systems Llc).
Key specifications for 311188-01: Head Height: 0.031 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN; Fastener Length: 0.187 INCHES NOMINAL IN; Shoulder Length: 0.050 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 0.069 INCHES MINIMUM AND 0.070 INCHES MAXIMUM FIRST SHOULDER IN. 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.