The Screw,close Tolerance, cataloged under National Stock Number 5305-01-697-0534, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Federal Manufacturing Corp. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-697-0534 |
| Primary Part Number | NAS1790-3-6X |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Federal Manufacturing Corp |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Fastener Length | 0.698 INCHES MINIMUM AND 0.728 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.313 INCHES MINIMUM AND 0.363 INCHES MAXIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OR AMS6415 ASSN STD 2ND MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-60494 MIL SPEC 4TH MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1790 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Grip Length | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Grip Diameter | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP E4340 OR STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.339 INCHES MINIMUM AND 0.381 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 |
|---|---|
| NAS1790-3-6X | Federal Manufacturing Corp (USA) |
| NAS1790-3-6X | Sps Technologies, Llc Dba PB Fasteners (USA) |
| NAS1790-3-6X | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| NAS1790-3-6X | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| NAS1790-3-6X | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| NAS1790-3-6X | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| NAS1790-3-6X | Howmet Global Fastening Systems Inc (USA) |
| NAS1790-3-6X | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| NAS1790-3-6X | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| NAS1790-3-6X | Hi-Shear Corporation (USA) |
| NAS1790-3-6X | West Coast Aerospace, Inc. (USA) |
| NAS1790-3-6X | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| NAS1790-3-6X | 3/2 Design control — primary reference U.S. Government activity |
| NAS1790-3-6X | 5/9 Secondary reference Voi-Shan/chatsworth Div of Vsi Corp Sub of Fairchild Industries Inc |
NSN 5305-01-697-0534 is a Screw,close Tolerance, manufactured by Federal Manufacturing Corp, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-697-0534 has 12 manufacturer part numbers on file: NAS1790-3-6X (Federal Manufacturing Corp), NAS1790-3-6X (Sps Technologies, Llc Dba PB Fasteners), NAS1790-3-6X (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), NAS1790-3-6X (Howmet Global Fastening Systems Inc Div City of Industry Operations), NAS1790-3-6X (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries) and 7 more.
Key specifications for NAS1790-3-6X: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Fastener Length: 0.698 INCHES MINIMUM AND 0.728 INCHES MAXIMUM IN. 23 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.