The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-025-2720, 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24 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-025-2720 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Fourth Diameter From Head | 0.162 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of Fifth Diameter | 0.040 INCHES NOMINAL IN |
| Head Height | 0.350 INCHES NOMINAL IN |
| Fastener Length | 2.005 INCHES NOMINAL IN |
| Thread Length | 0.361 INCHES NOMINAL IN |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS 5613 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.185 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 1.254 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Distance From Largest Bearing Surface of Head to End of Third Diameter | 0.040 INCHES NOMINAL IN |
| Head Style | FLAT CHAMFER |
| Second Diameter From Head | 0.187 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.100 INCHES NOMINAL IN |
| Fifth Diameter From Head | 0.119 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Distance From Largest Bearing Surface of Head to End of Fourth Diameter | 0.210 INCHES NOMINAL IN |
| Third Diameter From Head | 0.130 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.375 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 |
|---|---|
| 362-048 | 3/9 Design control — primary reference Woodward, Inc. Div Fuel Systems and Controls |
NSN 5305-01-025-2720 is a Screw,externally Relieved Body, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-025-2720: Fourth Diameter From Head: 0.162 INCHES NOMINAL IN; Distance From Largest Bearing Surface of Head to End of Fifth Diameter: 0.040 INCHES NOMINAL IN; Head Height: 0.350 INCHES NOMINAL IN; Fastener Length: 2.005 INCHES NOMINAL IN. 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.