The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-062-3674, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 28 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-062-3674 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Fourth Diameter From Head | 0.540 INCHES MAXIMUM IN |
| Point Diameter | 0.310 INCHES NOMINAL IN |
| Head Height | 0.380 INCHES NOMINAL IN |
| Point Length | 0.440 INCHES NOMINAL IN |
| Fastener Length | 3.180 INCHES NOMINAL IN |
| Thread Length | 1.120 INCHES NOMINAL IN |
| Hole Configuration Style | HEXAGON CORNERS |
| Material Document and Classification | QQ-N-281 CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.672 INCHES MINIMUM AND 0.673 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 0.435 INCHES MINIMUM AND 0.535 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Distance From Largest Bearing Surface of Head to End of Third Diameter | 0.470 INCHES MINIMUM AND 0.655 INCHES MAXIMUM IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Point Style | DOG |
| Width Between Flats | 0.937 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 4 |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Material | NICKEL ALLOY 400 OVERALL |
| Hole Quantity | 3 |
| Distance From Largest Bearing Surface of Head to End of Fourth Diameter | 0.630 INCHES MINIMUM AND 0.815 INCHES MAXIMUM IN |
| Third Diameter From Head | 0.672 INCHES MINIMUM AND 0.673 INCHES MAXIMUM IN |
| Thread Series Designator | UNF |
| Hole Type | DRILLED |
| Hole Diameter | 0.080 INCHES MINIMUM AND 0.090 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 |
|---|---|
| 704-4685194 ITEM 9 | 3/2 Design control — primary reference U.S. Government activity |
| 87861-1506ITEM10 | 5/2 Secondary reference U.S. Government activity |
| 4685194-0009 | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-062-3674 is a Screw,externally Relieved Body, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-062-3674: Fourth Diameter From Head: 0.540 INCHES MAXIMUM IN; Point Diameter: 0.310 INCHES NOMINAL IN; Head Height: 0.380 INCHES NOMINAL IN; Point Length: 0.440 INCHES NOMINAL IN. 28 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.