The Screw,externally Relieved Body, cataloged under National Stock Number 5305-00-986-9997, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 23 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-00-986-9997 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Fourth Diameter From Head | 0.120 INCHES NOMINAL IN |
| Head Height | 0.109 INCHES NOMINAL IN |
| Fastener Length | 2.954 INCHES NOMINAL IN |
| Thread Length | 0.437 INCHES MINIMUM IN |
| Material Document and Classification | QQ-S-763,COND A FED SPEC 1ST MATERIAL RESPONSE OR ASTM A582 COND A ASSN STD 2ND MATERIAL RESPONSE OR QQ-S-763,COND A FED SPEC 3RD MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.190 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 1.736 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Distance From Largest Bearing Surface of Head to End of Third Diameter | 1.798 INCHES NOMINAL IN |
| Head Style | PAN NO. 2 |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.120 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 1.000 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 4 |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OVERALL |
| Distance From Largest Bearing Surface of Head to End of Fourth Diameter | 2.517 INCHES NOMINAL IN |
| Third Diameter From Head | 0.190 INCHES NOMINAL IN |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 150834-2 | 3/9 Design control — primary reference U.S. Government activity |
| 150834-002 | 5/9 Secondary reference Sparton Corp |
NSN 5305-00-986-9997 is a Screw,externally Relieved Body, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-986-9997: Fourth Diameter From Head: 0.120 INCHES NOMINAL IN; Head Height: 0.109 INCHES NOMINAL IN; Fastener Length: 2.954 INCHES NOMINAL IN; Thread Length: 0.437 INCHES MINIMUM IN. 23 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.