The Screw,close Tolerance, cataloged under National Stock Number 5305-01-043-8057, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 5 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-043-8057 |
| Primary Part Number | HT193LB3-9 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES THREADS |
| Material Document and Classification | NAS 621 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Specification/standard Data | 26512-GB511J MANUFACTURERS STANDARD |
| Material | TITANIUM ALLOY 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 |
|---|---|
| HT193LB3-9 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HT193LB3-9 PRIMARY | Hi-Shear Corporation (USA) |
| T151-3-9 PRIMARY | Huck International, Inc (USA) |
| BM1009-3-9 PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| 67077-3-9 | 3/2 Design control — primary reference U.S. Government activity |
| HT8009-3-9 | 3/2 Design control — primary reference U.S. Government activity |
| 67077-3-9 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| T151-3-9 | 5/9 Secondary reference U.S. Government activity |
| GB511J3-9 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
| BM1009-3-9 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-043-8057 is a Screw,close Tolerance, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-043-8057 has 4 manufacturer part numbers on file: HT193LB3-9 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HT193LB3-9 (Hi-Shear Corporation), T151-3-9 (Huck International, Inc), BM1009-3-9 (Huck International, Inc).
Key specifications for HT193LB3-9: Surface Finish: 63.0 MICROINCHES THREADS; Material Document and Classification: NAS 621 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Specification/standard Data: 26512-GB511J MANUFACTURERS STANDARD; Part Name Assigned by Controlling Agency: NAVY SPECIAL PROJECT. 5 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.