The Screw,machine, cataloged under National Stock Number 5305-00-172-6301, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 18 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-00-172-6301 |
| Primary Part Number | NAS1101-6-20 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.191 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Screw Surface Treatment | CADMIUM AND CHROMATE |
| Fastener Length | 1.188 INCHES MINIMUM AND 1.250 INCHES MAXIMUM 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 | 1.105 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1101 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| 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 | 24 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.552 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES |
| 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 |
|---|---|
| NAS1101-6-20 | Huck International, Inc (USA) |
| NAS1101-6-20 | Plastic and Metal Products Corporation (USA) |
| NAS1101-6-20 | Eriks Southwest Inc Dba Montclair Enterprises (USA) |
| NAS1101-6-20 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| NAS1101-6-20 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| NAS1101-6-20 | Hi-Shear Corporation (USA) |
| NAS1101-6-20 | Qualified Air Components Inc. (USA) |
| NAS1101-6-20 | Nor-Cal Supply Co (USA) |
| NAS1101-6-20 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| NAS1101-6-20 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| NAS1101-6-20 | 5/9 Secondary reference Wallace R G Co Div of Ducommun Inc |
| NAS1101-6-20 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| NAS1101-6-20 | 5/2 Secondary reference U.S. Government activity |
| NAS1101-6-20 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1101-6-20 | 5/2 Secondary reference U.S. Government activity |
| NAS1101-6-20 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-00-172-6301 is a Screw,machine, manufactured by Huck International, Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-172-6301 has 10 manufacturer part numbers on file: NAS1101-6-20 (Huck International, Inc), NAS1101-6-20 (Plastic and Metal Products Corporation), NAS1101-6-20 (Eriks Southwest Inc Dba Montclair Enterprises), NAS1101-6-20 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), NAS1101-6-20 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 5 more.
Key specifications for NAS1101-6-20: Head Height: 0.191 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN; Screw Surface Treatment: CADMIUM AND CHROMATE; Fastener Length: 1.188 INCHES MINIMUM AND 1.250 INCHES MAXIMUM 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. 18 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.