The Screw,close Tolerance, cataloged under National Stock Number 5305-00-047-2424, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-047-2424 |
| Primary Part Number | HT8043-5-8 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Fastener Length | 0.859 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2 CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Diameter | 0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HIGH-TORQUE |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Head Diameter | 0.469 INCHES MINIMUM AND 0.474 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 |
|---|---|
| HT8043-5-8 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| HT239PB5-8 | Hi-Shear Corporation (USA) |
| HT239PB5-8 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| GB510L5-8 | Northrop Grumman Systems Corporation (USA) |
| A147-5-8 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| 106750-5-8 | 5/2 Secondary reference U.S. Government activity |
| HT8043-5-8 | 5/9 Secondary reference U.S. Government activity |
| BM19025-5-8 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-00-047-2424 is a Screw,close Tolerance, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-047-2424 has 5 manufacturer part numbers on file: HT8043-5-8 (Howmet Global Fastening Systems Inc), HT239PB5-8 (Hi-Shear Corporation), HT239PB5-8 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), GB510L5-8 (Northrop Grumman Systems Corporation), A147-5-8 (Huck International, Inc).
Key specifications for HT8043-5-8: Fastener Length: 0.859 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 2 CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL; Hardness Rating: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL; Nominal Thread Diameter: 0.312 INCHES IN. 12 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.