The Screw,shoulder, cataloged under National Stock Number 5305-01-450-9877, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is L3harris Technologies, Inc Div Space & Airborne Systems. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-450-9877 |
| Primary Part Number | 131858-01 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | L3harris Technologies, Inc Div Space & Airborne Systems |
| Status | ACTIVE |
| Fastener Length | 0.875 INCHES NOMINAL IN |
| Thread Length | 0.475 INCHES NOMINAL IN |
| Shoulder Shape | ROUND OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 131858-01 PRIMARY | L3harris Technologies, Inc Div Space & Airborne Systems (USA) |
| Reference | Meaning |
|---|---|
| 131858-01 | 3/9 Design control — primary reference Harris Corporation Dba Edo Reconnaissance and Surveillance Systems Div Ew Recon and Surveillance Systems |
NSN 5305-01-450-9877 is a Screw,shoulder, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-450-9877 has 1 manufacturer part number on file: 131858-01 (L3harris Technologies, Inc Div Space & Airborne Systems).
Key specifications for 131858-01: Fastener Length: 0.875 INCHES NOMINAL IN; Thread Length: 0.475 INCHES NOMINAL IN; Shoulder Shape: ROUND OVERALL; Nominal Thread Diameter: 0.250 INCHES IN. 11 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.