The Screw,close Tolerance, cataloged under National Stock Number 5305-01-397-5901, 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 15 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-397-5901 |
| Primary Part Number | HR240-3-16 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Fastener Length | 1.330 INCHES MINIMUM AND 1.360 INCHES MAXIMUM IN |
| Thread Length | 0.345 INCHES NOMINAL IN |
| Material Document and Classification | AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.990 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN |
| Grip Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | TITANIUM ALLOY UNS R56400 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.376 INCHES MINIMUM AND 0.385 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 |
|---|---|
| PBF1417-3-16 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| AIC1652-3-16 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 03A174-3-16 | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| HR240-3-16 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HR240-3-16 PRIMARY | Hi-Shear Corporation (USA) |
| SC3102-3-16 | Howmet Global Fastening Systems Inc (USA) |
| T009-3-16 | Huck International, Inc (USA) |
| SLB146-3-16 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| Reference | Meaning |
|---|---|
| T009-3-16 | 5/9 Secondary reference U.S. Government activity |
| SC3102-3-16 | 5/9 Secondary reference Sps Technologies Inc |
| 123743-3-16 | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-397-5901 is a Screw,close Tolerance, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-397-5901 has 8 manufacturer part numbers on file: PBF1417-3-16 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), AIC1652-3-16 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 03A174-3-16 (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems), HR240-3-16 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HR240-3-16 (Hi-Shear Corporation) and 3 more.
Key specifications for HR240-3-16: Fastener Length: 1.330 INCHES MINIMUM AND 1.360 INCHES MAXIMUM IN; Thread Length: 0.345 INCHES NOMINAL IN; Material Document and Classification: AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 0.190 INCHES IN. 15 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.