The Screw,machine, cataloged under National Stock Number 5305-00-080-9429, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-080-9429 |
| Primary Part Number | 3MA585-31 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Screw Surface Treatment | CADMIUM |
| Fastener Length | 2.469 INCHES NOMINAL IN |
| Screw Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE |
| Thread Length | 0.531 INCHES MINIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 4130 |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | TORQUE SET |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Thread Series Designator | UNF |
| Head Diameter | 0.629 INCHES MINIMUM AND 0.633 INCHES MAXIMUM 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 |
|---|---|
| 3MA585-31 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 3MFRA585-31 | 5/9 Secondary reference The Boeing Company Div Defense |
NSN 5305-00-080-9429 is a Screw,machine, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-080-9429 has 1 manufacturer part number on file: 3MA585-31 (The Boeing Company Div Defense).
1 possible match (shared part number, not a government interchangeability claim): 5305-00-800-1806. Verify interchangeability with system specifications before substitution.
Key specifications for 3MA585-31: Screw Surface Treatment: CADMIUM; Fastener Length: 2.469 INCHES NOMINAL IN; Screw Material Document and Classification: MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE; Thread Length: 0.531 INCHES MINIMUM IN. 16 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.