The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-718-6415, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-718-6415 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.179 INCHES MINIMUM AND 0.182 INCHES MAXIMUM IN |
| Fastener Length | 2.280 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MI 5-28 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.720 INCHES NOMINAL IN |
| Material Document and Classification | ASTM A581, ANNEALED AND COLD DRAWN AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL |
| Point Chamfer Angle | 120.0 DEGREES NOMINAL |
| First Diameter From Head | 0.174 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | KNURLED NO. 5 |
| Thread Direction | RIGHT-HAND |
| Point Style | CONE |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.280 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 138213 | D/9 Drawing number reference only U.S. Government activity |
| 138213-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-718-6415 is a Screw,externally Relieved Body, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-718-6415: Head Height: 0.179 INCHES MINIMUM AND 0.182 INCHES MAXIMUM IN; Fastener Length: 2.280 INCHES NOMINAL IN; Surface Treatment Document and Classification: MI 5-28 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.720 INCHES NOMINAL IN. 19 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.