The Screw,close Tolerance, cataloged under National Stock Number 5305-01-384-7878, 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 10 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-384-7878 |
| Primary Part Number | HR239-3-22P |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Fastener Length | 1.360 INCHES MINIMUM AND 1.390 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.345 INCHES NOMINAL IN |
| Material Document and Classification | AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM IN |
| Grip Diameter | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| 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 | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.328 INCHES MINIMUM 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 |
|---|---|
| BF0015HC3A-3-22 | Lfc Industries, Inc. (USA) |
| SC3103-3-22P | Howmet Global Fastening Systems Inc (USA) |
| SLB216-3-22P | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| PBF1416-3-22P | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| E008-3-22P | Huck International, Inc (USA) |
| 03A173-3-22P | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| HR239-3-22P PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HR239-3-22P PRIMARY | Hi-Shear Corporation (USA) |
| 03A173-3-22P | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| AIC1651-3-22P | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| E008-3-22P | 5/9 Secondary reference U.S. Government activity |
| 123742-3-22P | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-384-7878 is a Screw,close Tolerance, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-384-7878 has 10 manufacturer part numbers on file: BF0015HC3A-3-22 (Lfc Industries, Inc.), SC3103-3-22P (Howmet Global Fastening Systems Inc), SLB216-3-22P (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), PBF1416-3-22P (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), E008-3-22P (Huck International, Inc) and 5 more.
Key specifications for HR239-3-22P: Fastener Length: 1.360 INCHES MINIMUM AND 1.390 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.345 INCHES NOMINAL IN; Material Document and Classification: AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5731 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.