The Screw,close Tolerance, cataloged under National Stock Number 5305-01-070-2096, 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 22 specifications, cited from the U.S. Government catalog. The record lists 7 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-070-2096 |
| Primary Part Number | NAS1124E4 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.133 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Fastener Length | 0.551 INCHES MINIMUM AND 0.581 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.291 INCHES MINIMUM AND 0.341 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1124 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Grip Length | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Grip Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.365 INCHES MINIMUM AND 0.375 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 |
|---|---|
| NAS1124E4 PRIMARY | Hi-Shear Corporation (USA) |
| NAS1124E4 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| NAS1124E4 | Plastic and Metal Products Corporation (USA) |
| NAS1124E4 PRIMARY | Qualified Air Components Inc. (USA) |
| NAS1124E4 | Nor-Cal Supply Co (USA) |
| NAS1124E4 PRIMARY | Apcom Inc (USA) |
| NAS1124E4 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| Reference | Meaning |
|---|---|
| NAS1124E4 | 5/9 Secondary reference F and C Sales Inc |
| NAS1124E4 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1124E4 | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
| NAS1124E4 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1124E4 | 5/9 Secondary reference Air Industries Co Inc |
| NAS1124E4 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| NAS1124E4 | 5/9 Secondary reference U.S. Government activity |
| NAS1124E4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-070-2096 is a Screw,close Tolerance, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-070-2096 has 7 manufacturer part numbers on file: NAS1124E4 (Hi-Shear Corporation), NAS1124E4 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), NAS1124E4 (Plastic and Metal Products Corporation), NAS1124E4 (Qualified Air Components Inc.), NAS1124E4 (Nor-Cal Supply Co) and 2 more.
Key specifications for NAS1124E4: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.133 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN. 22 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.