The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-359-0191, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is The Entwistle Company Llc. Government technical data includes 9 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5305-01-359-0191 |
| Primary Part Number | 8909A813-001 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Entwistle Company Llc |
| Status | ACTIVE |
| External Thread Tolerance Class | 6G G |
| Fastener Length | 75.0 MILLIMETERS NOMINAL MM |
| Thread Pitch in Millimeters | 1.25 |
| Thread Length | 25.0 MILLIMETERS NOMINAL MM |
| Nominal Thread Diameter | 8.0 MILLIMETERS MM |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Material | STEEL PROPERTY CLASS 8.8 OVERALL |
| Thread Series Designator | M |
| 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 |
|---|---|
| 8909A813-001 PRIMARY | The Entwistle Company Llc (USA) |
| Reference | Meaning |
|---|---|
| 68303 | 5/9 Secondary reference Tifco Industries |
| 8C75HC3 | 7/9 Vendor item drawing reference Multi-Fasteners Inc |
| 8909A813-001 | 5/9 Secondary reference Entwistle Co the Defense Technology Div |
NSN 5305-01-359-0191 is a Screw,cap,hexagon Head, manufactured by The Entwistle Company Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-359-0191 has 1 manufacturer part number on file: 8909A813-001 (The Entwistle Company Llc).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-729-4559. Verify interchangeability with system specifications before substitution.
Key specifications for 8909A813-001: External Thread Tolerance Class: 6G G; Fastener Length: 75.0 MILLIMETERS NOMINAL MM; Thread Pitch in Millimeters: 1.25; Thread Length: 25.0 MILLIMETERS NOMINAL MM. 9 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.