The Screw,close Tolerance, cataloged under National Stock Number 5305-01-104-1067, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 18 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-104-1067 |
| Primary Part Number | HT4068-4-6A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Fastener Length | 0.829 INCHES MINIMUM AND 0.859 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-83488 TY 2 CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.444 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | OVAL COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Grip Diameter | 0.2485 INCHES MINIMUM AND 0.2495 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 | 28 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.3898 INCHES MINIMUM AND 0.3948 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 |
|---|---|
| 3M926-4L6 | Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc (USA) |
| HT4068-4-6 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| 11883-4-6/11883-4L6 | Reid Products Inc. Dba Reid Products Inc (USA) |
| HT4068-4-6A PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HT4068-4-6A PRIMARY | Hi-Shear Corporation (USA) |
| HT4068-4-6A PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 11883-4L6 PRIMARY | Reid Products Inc. Dba Reid Products Inc (USA) |
| 3M926-4L6 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HT4068-4-6A PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| HT4068-4-6A | Huck International, Inc (USA) |
| 3M926-4L6 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| HT4068-4-6A PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HT4068-4-6A PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| 3M926-4L6 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| 3M926-4L6 PRIMARY | Houston Precision Fasteners I Lp (USA) |
| WC4068-4-6 PRIMARY | West Coast Aerospace, Inc. (USA) |
| 3M926-4L6 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 3M926-4L6 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| HT4068-4-6 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HT4068-4-6A | 5/9 Secondary reference The Boeing Company Div Defense |
| HT4068-4-6 | 5/9 Secondary reference U.S. Government activity |
| HT4068-4-6 | 5/9 Secondary reference U.S. Government activity |
| 3M926-4L6 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| 3M926-4-6 | 5/9 Secondary reference The Boeing Company Div Defense |
| HT4068-4-6 | 5/9 Secondary reference U.S. Government activity |
| HT4068-4-6 | 5/9 Secondary reference Hi-Shear Corporation |
| HT4068-4-6 | 5/9 Secondary reference Huck International, Inc |
| HT4068-4-6A | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-104-1067 is a Screw,close Tolerance, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-104-1067 has 18 manufacturer part numbers on file: 3M926-4L6 (Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc), HT4068-4-6 (Fairchild Fasteners Europe - Vsd Gmbh), 11883-4-6/11883-4L6 (Reid Products Inc. Dba Reid Products Inc), HT4068-4-6A (Sps Technologies, Llc Dba PB Fasteners), HT4068-4-6A (Hi-Shear Corporation) and 13 more.
Key specifications for HT4068-4-6A: Fastener Length: 0.829 INCHES MINIMUM AND 0.859 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-C-83488 TY 2 CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.444 INCHES MINIMUM AND 0.494 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.