The Screw,close Tolerance, cataloged under National Stock Number 5305-01-198-8523, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-198-8523 |
| Primary Part Number | HT4058-3-3A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Head Height | 0.080 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN |
| Fastener Length | 0.578 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Thread Length | 0.380 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 4967 COMP 6AL4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK UNDERCUT |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN |
| Grip Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| 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 | TITANIUM ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.4625 INCHES MINIMUM AND 0.4672 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 |
|---|---|
| HT4058-3-3A PRIMARY | Huck International, Inc (USA) |
| HT353P3-3 PRIMARY | Hi-Shear Corporation (USA) |
| HT4058-3-3A | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| ST3M794V3-3A | Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc (USA) |
| HT4058-3-3A PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| HT353P3-3 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M794V3-3A PRIMARY | The Boeing Company Div Defense (USA) |
| ST3M794V3-3A | West Coast Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| HT4058-3-3A | 5/9 Secondary reference U.S. Government activity |
| HT4058-3-3A | 5/9 Secondary reference U.S. Government activity |
| HT4058-3-3A | 3/2 Design control — primary reference U.S. Government activity |
| ST3M794V3-3A | 5/9 Secondary reference Sps Technologies Ltd, Tj Brooks Division |
| ST3M794V3-3A | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-198-8523 is a Screw,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-198-8523 has 8 manufacturer part numbers on file: HT4058-3-3A (Huck International, Inc), HT353P3-3 (Hi-Shear Corporation), HT4058-3-3A (Sps Technologies Ltd, Tj Brooks Division), ST3M794V3-3A (Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc), HT4058-3-3A (Howmet Global Fastening Systems Inc) and 3 more.
Key specifications for HT4058-3-3A: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Head Height: 0.080 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN; Fastener Length: 0.578 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN. 18 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.