The Screw,close Tolerance, cataloged under National Stock Number 5305-01-356-8977, 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 17 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-356-8977 |
| Primary Part Number | HR240-3-5 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES OVERALL |
| Fastener Length | 0.642 INCHES MINIMUM AND 0.672 INCHES MAXIMUM IN |
| Thread Length | 0.320 INCHES MINIMUM AND 0.370 INCHES MAXIMUM 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 | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Grip Diameter | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| 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 | 0.328 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 |
|---|---|
| HR240-3-5 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| PBF1417-3-5 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| AIC1652-3-5 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| SC3102-3-5 | Howmet Global Fastening Systems Inc (USA) |
| HR240-3-5 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| SC3102-3-5 | 5/9 Secondary reference Sps Technologies Inc |
| 03A174-3-5 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| 03A174-3-5 | 5/9 Secondary reference Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems |
| 03A174-3-5 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
| SLB146-3-5 | 5/9 Secondary reference Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok |
| T009-3-5 | 5/9 Secondary reference Huck International, Inc |
| T009-3-5 | 5/9 Secondary reference U.S. Government activity |
| 123743-3-5 | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-356-8977 is a Screw,close Tolerance, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-356-8977 has 5 manufacturer part numbers on file: HR240-3-5 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), PBF1417-3-5 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), AIC1652-3-5 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), SC3102-3-5 (Howmet Global Fastening Systems Inc), HR240-3-5 (Hi-Shear Corporation).
Key specifications for HR240-3-5: Surface Finish: 32.0 MICROINCHES OVERALL; Fastener Length: 0.642 INCHES MINIMUM AND 0.672 INCHES MAXIMUM IN; Thread Length: 0.320 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN; Material Document and Classification: AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS4967 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.