The Screw,close Tolerance, cataloged under National Stock Number 5305-01-005-4022, 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 20 specifications, cited from the U.S. Government catalog. The record lists 14 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-005-4022 |
| Primary Part Number | HT4020-3-5A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Head Height | 0.044 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN |
| Fastener Length | 0.703 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Thread Length | 0.381 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK UNDERCUT |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Grip Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.377 INCHES MINIMUM AND 0.381 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 |
|---|---|
| HT4020-3-5A PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HT4020-3-5A | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| ST3M652C3-5A | Heartland Precision Fasteners Inc (USA) |
| WC4020-3-5A | West Coast Aerospace, Inc. (USA) |
| HT4020-3-5A | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 11925C3-5A | Reid Products Inc. Dba Reid Products Inc (USA) |
| ST3M652C3-5A | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| ST3M652C3-5A | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| ST3M652C3-5A | Houston Precision Fasteners I Lp (USA) |
| HT4020-3-5A | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| HT4020-3-5A | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HT4020-3-5A | Howmet Global Fastening Systems Inc (USA) |
| HT4020-3-5A | Huck International, Inc (USA) |
| HT4020-3-5A PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| CHT4020-3-5A | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| ST3M652C3-5A | 5/2 Secondary reference U.S. Government activity |
| HT4020-3-5A | 5/2 Secondary reference U.S. Government activity |
| ST3M652C3-5A | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| HT4020-3-5A | 5/9 Secondary reference U.S. Government activity |
| CHT4020-3-5A | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| CHT4020-3-5A | C/1 Advisory reference — outside the item-of-supply concept Deutsch Co the |
| HT4020-3-5A | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-005-4022 is a Screw,close Tolerance, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-005-4022 has 14 manufacturer part numbers on file: HT4020-3-5A (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HT4020-3-5A (Sps Technologies Ltd, Tj Brooks Division), ST3M652C3-5A (Heartland Precision Fasteners Inc), WC4020-3-5A (West Coast Aerospace, Inc.), HT4020-3-5A (Sps Technologies, Llc Dba PB Fasteners) and 9 more.
Key specifications for HT4020-3-5A: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Head Height: 0.044 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN; Fastener Length: 0.703 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN. 20 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.