The Screw,shoulder, cataloged under National Stock Number 5305-00-558-7008, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Ge Aviation Systems Llc Dba Ge Aviation Systems Llc. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-558-7008 |
| Primary Part Number | BYRF625 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Ge Aviation Systems Llc Dba Ge Aviation Systems Llc |
| Status | ACTIVE |
| Head Height | 0.094 INCHES NOMINAL IN |
| Fastener Length | 0.438 INCHES NOMINAL IN |
| Shoulder Length | 0.016 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.110 INCHES MINIMUM AND 0.115 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.297 INCHES MINIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | MIL-S-7720 COMP 303S OR 303SE CONDITION A MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | FILLISTER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 303 OR STEEL COMP 303SE OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.172 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 |
|---|---|
| BYRF625 PRIMARY | Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (USA) |
NSN 5305-00-558-7008 is a Screw,shoulder, manufactured by Ge Aviation Systems Llc Dba Ge Aviation Systems Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-558-7008 has 1 manufacturer part number on file: BYRF625 (Ge Aviation Systems Llc Dba Ge Aviation Systems Llc).
Key specifications for BYRF625: Head Height: 0.094 INCHES NOMINAL IN; Fastener Length: 0.438 INCHES NOMINAL IN; Shoulder Length: 0.016 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 0.110 INCHES MINIMUM AND 0.115 INCHES MAXIMUM FIRST SHOULDER IN. 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.