The Screw,externally Relieved Body, cataloged under National Stock Number 5305-00-331-4532, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-331-4532 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.156 INCHES NOMINAL IN |
| Fastener Length | 1.604 INCHES NOMINAL IN |
| Thread Length | 0.328 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.106 INCHES NOMINAL FIRST HOLE IN |
| First Diameter From Head | 0.247 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 1.229 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Distance From Largest Bearing Surface of Head to End of Third Diameter | 1.276 INCHES NOMINAL IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.497 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.156 INCHES NOMINAL IN |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | SLOT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 4130 OVERALL |
| Third Diameter From Head | 0.422 INCHES NOMINAL IN |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.479 INCHES NOMINAL FIRST HOLE IN |
| Head Diameter | 0.372 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 |
|---|---|
| 340-8300006 | 5/9 Secondary reference General Dynamics Corp Convair Div Lindbergh Field Facility |
| 340-8300006 | 5/9 Secondary reference Tracor Flight Systems Inc Sub of Tracor Inc |
| 340-8300006 | 5/9 Secondary reference Hughes Missile Systems Co San Diego |
| 340-8300006 | 3/9 Design control — primary reference Bae Systems Technology Solutions & Services Inc. |
NSN 5305-00-331-4532 is a Screw,externally Relieved Body, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-331-4532: Head Height: 0.156 INCHES NOMINAL IN; Fastener Length: 1.604 INCHES NOMINAL IN; Thread Length: 0.328 INCHES NOMINAL IN; Shank Unthreaded Hole Diameter: 0.106 INCHES NOMINAL FIRST HOLE IN. 21 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.