The Screw,externally Relieved Body, cataloged under National Stock Number 5305-00-855-1281, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Raytheon Company Dba Raytheon Co. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-00-855-1281 |
| Primary Part Number | 4023481-0001 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Head Height | 0.074 INCHES NOMINAL IN |
| Fastener Length | 0.625 INCHES NOMINAL IN |
| Thread Length | 0.240 INCHES MINIMUM IN |
| Material Document and Classification | ASTM A582 COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.080 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | FILLISTER |
| Thread Direction | RIGHT-HAND |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.385 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.174 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 |
| Part Number | Manufacturer |
|---|---|
| 4023481-0001 PRIMARY | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| 4023481-0001 | C/1 Advisory reference — outside the item-of-supply concept Rex Systems Incorporated Dba Rex Systems Inc |
NSN 5305-00-855-1281 is a Screw,externally Relieved Body, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-855-1281 has 1 manufacturer part number on file: 4023481-0001 (Raytheon Company Dba Raytheon Co).
Key specifications for 4023481-0001: Head Height: 0.074 INCHES NOMINAL IN; Fastener Length: 0.625 INCHES NOMINAL IN; Thread Length: 0.240 INCHES MINIMUM IN; Material Document and Classification: ASTM A582 COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 17 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.