The Screw,close Tolerance, cataloged under National Stock Number 5305-01-042-8835, 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 3 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5305-01-042-8835 |
| Primary Part Number | HT193LB3-12 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Specification/standard Data | 26512-GB511J PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Material | TITANIUM ALLOY UNS R54520 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| HT193LB3-12 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| T151-3-12 | Huck International, Inc (USA) |
| BM21009-3-12 | Huck International, Inc (USA) |
| HT193LB3-12 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HT8099-3-12 | 5/2 Secondary reference U.S. Government activity |
| 67077-3-12 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 67077-3-12 | 3/2 Design control — primary reference U.S. Government activity |
| T151-3-12 | 5/9 Secondary reference U.S. Government activity |
| BM21009-3-12 | 5/9 Secondary reference U.S. Government activity |
| GB511J3-12 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
NSN 5305-01-042-8835 is a Screw,close Tolerance, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-042-8835 has 4 manufacturer part numbers on file: HT193LB3-12 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), T151-3-12 (Huck International, Inc), BM21009-3-12 (Huck International, Inc), HT193LB3-12 (Hi-Shear Corporation).
Key specifications for HT193LB3-12: Specification/standard Data: 26512-GB511J PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Special Features: DRY FILM LUBRICANT; Part Name Assigned by Controlling Agency: NAVY SPECIAL PROJECT; Material: TITANIUM ALLOY UNS R54520 OVERALL. 3 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.