The Screw,close Tolerance, cataloged under National Stock Number 5305-01-019-0840, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-019-0840 |
| Primary Part Number | HT4036-6D35 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Fastener Length | 2.689 INCHES MINIMUM AND 2.719 INCHES MAXIMUM IN |
| Thread Length | 0.516 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.178 INCHES MINIMUM AND 2.198 INCHES MAXIMUM IN |
| Grip Diameter | 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.574 INCHES MINIMUM AND 2.594 INCHES MAXIMUM FIRST HOLE IN |
| Head Diameter | 0.752 INCHES MINIMUM AND 0.762 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 |
|---|---|
| HT4036-6D35 | Satair A/s (DNK) |
| HT4036-6D35 | Huck International, Inc (USA) |
| ST3M680-6D35 | The Boeing Company Div Defense (USA) |
| HT4036-6D35 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HT4036-6D35 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| HT4036-6D35 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HT4036-6D35 | 3/2 Design control — primary reference U.S. Government activity |
| HT4036-6D35 | 3/2 Design control — primary reference U.S. Government activity |
| HT4036-6D35 | 5/9 Secondary reference U.S. Government activity |
| HT4036-6D35 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
NSN 5305-01-019-0840 is a Screw,close Tolerance, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-019-0840 has 6 manufacturer part numbers on file: HT4036-6D35 (Satair A/s), HT4036-6D35 (Huck International, Inc), ST3M680-6D35 (The Boeing Company Div Defense), HT4036-6D35 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HT4036-6D35 (Fairchild Fasteners Europe - Vsd Gmbh) and 1 more.
Key specifications for HT4036-6D35: Fastener Length: 2.689 INCHES MINIMUM AND 2.719 INCHES MAXIMUM IN; Thread Length: 0.516 INCHES NOMINAL IN; Shank Unthreaded Hole Diameter: 0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE IN; Nominal Thread Diameter: 0.375 INCHES 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.