The Screw,close Tolerance, cataloged under National Stock Number 5305-01-103-8816, 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 16 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-103-8816 |
| Primary Part Number | HT4068-3-3A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Fastener Length | 0.579 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-83488 TY 2 CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.381 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | OVAL COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN |
| Grip Diameter | 0.1885 INCHES MINIMUM AND 0.1895 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 | 32 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.2966 INCHES MINIMUM AND 0.3016 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 |
|---|---|
| HT4068-3-3A PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 3M926-3L3 | Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc (USA) |
| 3M926-3L3 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| 11883-3-3/11883-3L3 | Reid Products Inc. Dba Reid Products Inc (USA) |
| HT4068-3-3A PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| HT4068-3-3A PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HT4068-3-3A PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HT4068-3-3A PRIMARY | Huck International, Inc (USA) |
| HT4068-3-3A PRIMARY | Hi-Shear Corporation (USA) |
| 3M926-3L3 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HT4068-3-3A PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| WC4068-3-3 PRIMARY | West Coast Aerospace, Inc. (USA) |
| 11883-3L3 PRIMARY | Reid Products Inc. Dba Reid Products Inc (USA) |
| 3M926-3L3 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 3M926-3L3 PRIMARY | Houston Precision Fasteners I Lp (USA) |
| HT4068-3-3A | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| Reference | Meaning |
|---|---|
| HT4068-3-3 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HT4068-3-3A | 5/9 Secondary reference Fastener Innovation Technology, Inc. Dba F I T |
| 3M926-3-3 | 5/9 Secondary reference The Boeing Company Div Defense |
| 10115017 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| HT4068-3-3 | 5/9 Secondary reference Hi-Shear Corporation |
| HT4068-3-3 | 5/9 Secondary reference U.S. Government activity |
| 3M926-3L3 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| HT4068-3-3A | 5/9 Secondary reference West Coast Aerospace, Inc. |
| HT4068-3-3A | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-103-8816 is a Screw,close Tolerance, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-103-8816 has 16 manufacturer part numbers on file: HT4068-3-3A (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), 3M926-3L3 (Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc), 3M926-3L3 (Heartland Precision Fasteners Inc), 11883-3-3/11883-3L3 (Reid Products Inc. Dba Reid Products Inc), HT4068-3-3A (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 11 more.
Key specifications for HT4068-3-3A: Fastener Length: 0.579 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-C-83488 TY 2 CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.381 INCHES MINIMUM AND 0.431 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.