The Screw,machine, cataloged under National Stock Number 5305-01-017-9657, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Drager Safety Ag & Co. Kgaa. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-017-9657 |
| Primary Part Number | E20474 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Drager Safety Ag & Co. Kgaa |
| Status | ACTIVE |
| Head Height | 0.083 INCHES MINIMUM AND 0.087 INCHES MAXIMUM IN |
| Screw Surface Treatment | NICKEL |
| Fastener Length | 0.696 INCHES MINIMUM AND 0.701 INCHES MAXIMUM IN |
| Screw Material Document and Classification | ECLIPSALLOY88,COND 1/2 HARD MFR REF SINGLE MATERIAL RESPONSE |
| Thread Length | 0.656 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | FILLISTER |
| Thread Direction | RIGHT-HAND |
| Screw Material | COPPER ALLOY |
| Internal Drive Style | SLOT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.217 INCHES MINIMUM AND 0.219 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 |
|---|---|
| E20474 | Drager Safety Ag & Co. Kgaa (DEU) |
| Reference | Meaning |
|---|---|
| E20474 | 5/9 Secondary reference B/e Aerospace Systems Gmbh Div Life Support Systems Europe |
| MFIL0-610 1-2BN | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-017-9657 is a Screw,machine, manufactured by Drager Safety Ag & Co. Kgaa, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-017-9657 has 1 manufacturer part number on file: E20474 (Drager Safety Ag & Co. Kgaa).
Key specifications for E20474: Head Height: 0.083 INCHES MINIMUM AND 0.087 INCHES MAXIMUM IN; Screw Surface Treatment: NICKEL; Fastener Length: 0.696 INCHES MINIMUM AND 0.701 INCHES MAXIMUM IN; Screw Material Document and Classification: ECLIPSALLOY88,COND 1/2 HARD MFR REF SINGLE MATERIAL RESPONSE. 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.
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.