The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-439-6845, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is L3harris Technologies, Inc. Dba Harris Corporation. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-439-6845 |
| Primary Part Number | A3167793-8 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | L3harris Technologies, Inc. Dba Harris Corporation |
| Status | ACTIVE |
| Head Height | 3.25 MILLIMETERS MINIMUM AND 3.75 MILLIMETERS MAXIMUM MM |
| External Thread Tolerance Class | 6G G |
| Fastener Length | 20.75 MILLIMETERS MINIMUM AND 21.25 MILLIMETERS MAXIMUM MM |
| Surface Treatment Document and Classification | QQ-P-35 TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Pitch in Millimeters | 0.7 |
| Thread Length | 4.75 MILLIMETERS MINIMUM AND 5.25 MILLIMETERS MAXIMUM MM |
| Material Document and Classification | QQ-S-763 CRES 300 SERIES MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 2.94 MILLIMETERS MINIMUM AND 3.06 MILLIMETERS MAXIMUM MM |
| Nominal Thread Diameter | 4.0 MILLIMETERS MM |
| Head Style | PAN NO. 2 |
| Thread Direction | RIGHT-HAND |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 16.0 MILLIMETERS NOMINAL MM |
| Locking Feature | PATCH THREADS |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | CROSS RECESS TYPE II |
| Material | STEEL OVERALL |
| Thread Series Designator | M |
| Head Diameter | 6.75 MILLIMETERS MINIMUM AND 7.25 MILLIMETERS MAXIMUM MM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| A3167793-8 PRIMARY | L3harris Technologies, Inc. Dba Harris Corporation (USA) |
| Reference | Meaning |
|---|---|
| A3167793-8 | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-439-6845 is a Screw,externally Relieved Body, manufactured by L3harris Technologies, Inc. Dba Harris Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-439-6845 has 1 manufacturer part number on file: A3167793-8 (L3harris Technologies, Inc. Dba Harris Corporation).
Key specifications for A3167793-8: Head Height: 3.25 MILLIMETERS MINIMUM AND 3.75 MILLIMETERS MAXIMUM MM; External Thread Tolerance Class: 6G G; Fastener Length: 20.75 MILLIMETERS MINIMUM AND 21.25 MILLIMETERS MAXIMUM MM; Surface Treatment Document and Classification: QQ-P-35 TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 19 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.