The Screw,machine, cataloged under National Stock Number 5305-00-021-7245, 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 20 specifications, cited from the U.S. Government catalog. The record lists 10 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-021-7245 |
| Primary Part Number | NAS1101-3H9 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Head Height | 0.103 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN |
| Screw Surface Treatment | CADMIUM |
| Fastener Length | 0.562 INCHES NOMINAL IN |
| Screw Material Document and Classification | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 5TH MATERIAL RESPONSE |
| Thread Length | 0.500 INCHES MAXIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 4140 OR STEEL COMP E4340 OR STEEL COMP 6150 OR STEEL COMP 8735 OR STEEL COMP 8740 |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | TORQUE SET |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Hole Quantity | 2 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Hole Configuration Style | ROUND |
| Hole Diameter | 0.036 INCHES NOMINAL IN |
| Head Diameter | 0.306 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE |
| 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 |
|---|---|
| NAS1101-3H9 | Hi-Shear Corporation (USA) |
| NAS1101-3H9 | Qualified Air Components Inc. (USA) |
| NAS1101-3H9 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| NAS1101-3H9 | Plastic and Metal Products Corporation (USA) |
| NAS1101-3H9 | Eriks Southwest Inc Dba Montclair Enterprises (USA) |
| NAS1101-3H9 | Nor-Cal Supply Co (USA) |
| NAS1101-3H9 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| NAS1101-3H9 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| NAS1101-3H9 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| NAS1101-3H9 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| NAS1101-3H9 | 5/2 Secondary reference U.S. Government activity |
| NAS1101-3H9 | 5/9 Secondary reference Wallace R G Co Div of Ducommun Inc |
| NAS1101-3H9 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| NAS1101-3H9 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1101-3H9 | 5/9 Secondary reference U.S. Government activity |
| NAS1101-3H9 | 5/2 Secondary reference U.S. Government activity |
NSN 5305-00-021-7245 is a Screw,machine, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-021-7245 has 10 manufacturer part numbers on file: NAS1101-3H9 (Hi-Shear Corporation), NAS1101-3H9 (Qualified Air Components Inc.), NAS1101-3H9 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), NAS1101-3H9 (Plastic and Metal Products Corporation), NAS1101-3H9 (Eriks Southwest Inc Dba Montclair Enterprises) and 5 more.
Key specifications for NAS1101-3H9: Head Height: 0.103 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN; Screw Surface Treatment: CADMIUM; Fastener Length: 0.562 INCHES NOMINAL IN; Screw Material Document and Classification: MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 5TH MATERIAL RESPONSE. 20 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.