The Screw Assembly,panel, cataloged under National Stock Number 5305-01-352-4226, 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 21 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-352-4226 |
| Primary Part Number | LB13-4-14 |
| Item Name | Screw Assembly,panel |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Width Across Flats | 0.251 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Fastener Length | 1.340 INCHES MINIMUM AND 1.360 INCHES MAXIMUM IN |
| Thread Length | 0.375 INCHES NOMINAL IN |
| Material Document and Classification | AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE STAND-OFF |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE POINT |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | HEX NUT |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Minimum Tensile Strength | 95000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING OR COBALT ALLOY SPRING |
| Material | TITANIUM ALLOY UNS R56400 FASTENER |
| Material | STEEL COMP 440C POINT |
| Material | STEEL COMP XM-13 STAND-OFF |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.5018 INCHES MINIMUM AND 0.5066 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 |
|---|---|
| 03A213-4-14 | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| SLB141-4-14 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| LB13-4-14 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| 03A213-4-14 | 5/9 Secondary reference Uniroyal Inc Oxford Management and Reseach Center Power Transmission Sales |
| AS375-4-14 | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-352-4226 is a Screw Assembly,panel, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-352-4226 has 3 manufacturer part numbers on file: 03A213-4-14 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems), SLB141-4-14 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), LB13-4-14 (Hi-Shear Corporation).
Key specifications for LB13-4-14: Width Across Flats: 0.251 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN; Fastener Length: 1.340 INCHES MINIMUM AND 1.360 INCHES MAXIMUM IN; Thread Length: 0.375 INCHES NOMINAL IN; Material Document and Classification: AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE FASTENER. 21 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.