The Screw,externally Relieved Body, cataloged under National Stock Number 5305-00-592-7735, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 24 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-00-592-7735 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Fourth Diameter From Head | 0.113 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN |
| Head Height | 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN |
| Fastener Length | 0.595 INCHES MINIMUM AND 0.642 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | IL-C-16232,TYPE 1 MIL SPEC 10TH TREATMENT RESPONSE OVERALL |
| Thread Length | 0.156 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN |
| Material Document and Classification | ISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 0.283 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Distance From Largest Bearing Surface of Head to End of Third Diameter | 0.361 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.195 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.046 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 4 |
| Surface Treatment | PHOSPHATE MANGANESE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 1213 OVERALL |
| Distance From Largest Bearing Surface of Head to End of Fourth Diameter | 0.422 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Third Diameter From Head | 0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.468 INCHES MINIMUM AND 0.500 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 |
| Reference | Meaning |
|---|---|
| 57063 | 5/9 Secondary reference U.S. Government activity |
| SMB187559 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-00-592-7735 is a Screw,externally Relieved Body, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-592-7735: Fourth Diameter From Head: 0.113 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN; Head Height: 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN; Fastener Length: 0.595 INCHES MINIMUM AND 0.642 INCHES MAXIMUM IN; Surface Treatment Document and Classification: IL-C-16232,TYPE 1 MIL SPEC 10TH TREATMENT RESPONSE OVERALL. 24 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.