The Screw,close Tolerance, cataloged under National Stock Number 5305-00-357-1868, 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. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 — Screws (FSG 53) |
| Manufacturers | Sps Technologies, Llc Dba PB Fasteners (CAGE 56878); Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAGE L4528); Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc (CAGE 007R1); Howmet Global Fastening Systems Inc (CAGE 06950); Sps Technologies Ltd, Tj Brooks Division (CAGE K5673) |
| Parameter | Value |
|---|---|
| NSN | 5305-00-357-1868 |
| Primary Part Number | HT4028L4-6 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| 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 |
|---|---|
| HT4028L4-6 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HT4028L4-6 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M466V4L6-1 | Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc (USA) |
| HT4028L4-6 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| HT4028L4-6 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| 11909V4L6-1 | Reid Products Inc. Dba Reid Products Inc (USA) |
| HT4028L4-6 PRIMARY | Huck International, Inc (USA) |
| HT4028L4-6 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HT4028L4-6 | 5/9 Secondary reference U.S. Government activity |
| ST3M466V4L6-1 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| HT4028L4-6 | 3/2 Design control — primary reference U.S. Government activity |
| WC4028L-4-6 | 5/1 Secondary reference West Coast Aerospace, Inc. |
| HT4028L4-6 | 5/9 Secondary reference U.S. Government activity |
| 10334608 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5305-00-357-1868 is a Screw,close Tolerance, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-357-1868 has 8 manufacturer part numbers on file: HT4028L4-6 (Sps Technologies, Llc Dba PB Fasteners), HT4028L4-6 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), ST3M466V4L6-1 (Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc), HT4028L4-6 (Howmet Global Fastening Systems Inc), HT4028L4-6 (Sps Technologies Ltd, Tj Brooks Division) and 3 more.
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.