The Screw,close Tolerance, cataloged under National Stock Number 5305-00-952-0422, 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 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-00-952-0422 |
| Primary Part Number | NAS1206-7D |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Fastener Length | 0.814 INCHES MINIMUM AND 0.844 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Length | 0.366 INCHES MINIMUM AND 0.416 INCHES MAXIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Shank Unthreaded Hole Diameter | 0.106 INCHES MINIMUM AND 0.116 INCHES MAXIMUM FIRST HOLE IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1206 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Grip Length | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| Grip Diameter | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.684 INCHES MINIMUM AND 0.734 INCHES MAXIMUM FIRST HOLE IN |
| Head Diameter | 0.704 INCHES MINIMUM AND 0.762 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 |
|---|---|
| NAS1206-7D PRIMARY | Hi-Shear Corporation (USA) |
| NAS1206-7D | Nor-Cal Supply Co (USA) |
| NAS1206-7D PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| NAS1206-7D PRIMARY | Eriks Southwest Inc Dba Montclair Enterprises (USA) |
| NAS1206-7D PRIMARY | Apcom Inc (USA) |
| Reference | Meaning |
|---|---|
| NAS1206-7D | 5/9 Secondary reference U.S. Government activity |
| NAS1206-7D | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
| NAS1206-7D | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| NAS1206-7D | 3/2 Design control — primary reference U.S. Government activity |
| NAS1206-7D | 5/9 Secondary reference F and C Sales Inc |
| NAS1206-7D | 5/9 Secondary reference Air Industries Co Inc |
| NAS1206-7D | 3/2 Design control — primary reference U.S. Government activity |
| NAS1206-7D | 5/9 Secondary reference Collins Engineering Corp |
NSN 5305-00-952-0422 is a Screw,close Tolerance, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-952-0422 has 5 manufacturer part numbers on file: NAS1206-7D (Hi-Shear Corporation), NAS1206-7D (Nor-Cal Supply Co), NAS1206-7D (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), NAS1206-7D (Eriks Southwest Inc Dba Montclair Enterprises), NAS1206-7D (Apcom Inc).
Key specifications for NAS1206-7D: Fastener Length: 0.814 INCHES MINIMUM AND 0.844 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL; Thread Length: 0.366 INCHES MINIMUM AND 0.416 INCHES MAXIMUM IN; Hardness Rating: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL. 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.