The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-206-2155, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-206-2155 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.185 INCHES NOMINAL IN |
| Fastener Length | 0.670 INCHES NOMINAL IN |
| Thread Length | 0.260 INCHES NOMINAL IN |
| Material Document and Classification | QQ-C-530,COND H FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.134 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.187 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.410 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Internal Drive Style | SLOT |
| Material | COPPER ALLOY OVERALL |
| Head Diameter | 0.312 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 |
|---|---|
| 765931-106 | 5/2 Secondary reference U.S. Government activity |
| UBSH3-T30(SEL) | 3/9 Design control — primary reference Southco Inc |
NSN 5305-01-206-2155 is a Screw,externally Relieved Body, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-206-2155: Head Height: 0.185 INCHES NOMINAL IN; Fastener Length: 0.670 INCHES NOMINAL IN; Thread Length: 0.260 INCHES NOMINAL IN; Material Document and Classification: QQ-C-530,COND H FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.