The Screw,close Tolerance, cataloged under National Stock Number 5305-01-028-5695, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Qualified Air Components Inc.. Government technical data includes 26 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through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-028-5695 |
| Primary Part Number | NAS1123E4H |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Qualified Air Components Inc. |
| 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 | 0.103 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN |
| Fastener Length | 0.511 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.251 INCHES MINIMUM AND 0.301 INCHES MAXIMUM IN |
| Hole Configuration Style | ROUND |
| Material Document and Classification | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1123 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Grip Length | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Grip Diameter | 0.1885 INCHES MINIMUM AND 0.1895 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 | 32 |
| Material | IRON ALLOY 660 OVERALL |
| Hole Quantity | 2 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.038 INCHES NOMINAL IN |
| Head Diameter | 0.306 INCHES MINIMUM AND 0.313 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 |
|---|---|
| NAS1123E4H PRIMARY | Qualified Air Components Inc. (USA) |
| NAS1123E4H PRIMARY | Nor-Cal Supply Co (USA) |
| NAS1123E4H PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| NAS1123E4H PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| NAS1123E4H PRIMARY | Hi-Shear Corporation (USA) |
| NAS1123E4H PRIMARY | Apcom Inc (USA) |
| NAS1123E4H PRIMARY | Plastic and Metal Products Corporation (USA) |
| Reference | Meaning |
|---|---|
| NAS1123E4H | 3/2 Design control — primary reference U.S. Government activity |
| NAS1123E4H | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| NAS1123E4H | 3/2 Design control — primary reference U.S. Government activity |
| NAS1123E4H | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
| NAS1123E4H | 5/9 Secondary reference Air Industries Co Inc |
| NAS123E4H | 5/9 Secondary reference F and C Sales Inc |
| NAS1123E4H | 3/2 Design control — primary reference U.S. Government activity |
| NAS1123E4H | 5/9 Secondary reference U.S. Government activity |
| NAS1123E4H | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
NSN 5305-01-028-5695 is a Screw,close Tolerance, manufactured by Qualified Air Components Inc., classified under FSC 5305, Screws. Status: active.
NSN 5305-01-028-5695 has 7 manufacturer part numbers on file: NAS1123E4H (Qualified Air Components Inc.), NAS1123E4H (Nor-Cal Supply Co), NAS1123E4H (Fastener Innovation Technology, Inc. Dba F I T), NAS1123E4H (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), NAS1123E4H (Hi-Shear Corporation) and 2 more.
Key specifications for NAS1123E4H: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.103 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN. 26 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.