The Screw,close Tolerance, cataloged under National Stock Number 5305-01-102-3612, 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 8 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-102-3612 |
| Primary Part Number | HT4068-6-19A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Fastener Length | 1.814 INCHES MINIMUM AND 1.844 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-83488 TY 2 CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.616 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN |
| Grip Diameter | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Surface Treatment | ALUMINUM AND CHROMATE OVERALL |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 101.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.510 INCHES MINIMUM AND 0.564 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 |
|---|---|
| HT4068-6-19A PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 3M926-6-19 PRIMARY | The Boeing Company Div Defense (USA) |
| 11883-6-19/11883-6L19 | Reid Products Inc. Dba Reid Products Inc (USA) |
| HT4068-6-19A PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| 3M926-6L19 PRIMARY | The Boeing Company Div Defense (USA) |
| HT4068-6-19 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HT4068-6-19A PRIMARY | Hi-Shear Corporation (USA) |
| HT4068-6-19 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HT4068-6-19A | 5/9 Secondary reference U.S. Government activity |
| HT4068-6-19A | 3/2 Design control — primary reference U.S. Government activity |
| HT4068-6-19 | 3/2 Design control — primary reference U.S. Government activity |
| HT4068-6-19 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HT4068-6-19A | 5/9 Secondary reference U.S. Government activity |
| HT4068-6-19 | 3/2 Design control — primary reference U.S. Government activity |
| HT4068-6-19 | 5/9 Secondary reference U.S. Government activity |
| HT4068-6-19A | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
NSN 5305-01-102-3612 is a Screw,close Tolerance, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-102-3612 has 8 manufacturer part numbers on file: HT4068-6-19A (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), 3M926-6-19 (The Boeing Company Div Defense), 11883-6-19/11883-6L19 (Reid Products Inc. Dba Reid Products Inc), HT4068-6-19A (Howmet Global Fastening Systems Inc), 3M926-6L19 (The Boeing Company Div Defense) and 3 more.
Key specifications for HT4068-6-19A: Fastener Length: 1.814 INCHES MINIMUM AND 1.844 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-C-83488 TY 2 CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.616 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN; Material Document and Classification: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 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.