The Screw,machine, cataloged under National Stock Number 5305-01-044-0721, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Fastener Innovation Technology, Inc. Dba F I T. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-044-0721 |
| Primary Part Number | NAS1221-08-8P |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Fastener Innovation Technology, Inc. Dba F I T |
| Status | ACTIVE |
| Screw Surface Treatment | CADMIUM AND CHROMATE |
| Fastener Length | 0.824 INCHES MINIMUM AND 0.854 INCHES MAXIMUM IN |
| Thread Length | 0.314 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1221 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Screw Material | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNJC |
| Head Diameter | 0.294 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | QQ-P-416 TY 2 CLASS 2 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 |
|---|---|
| NAS1221-08-8P PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| NAS1221-08-8P PRIMARY | Huck International, Inc (USA) |
| NAS1221-08-8P PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| NAS1221-08-8P PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| NAS1221-08-8P | 3/2 Design control — primary reference U.S. Government activity |
| NAS1221-08-8P | 5/9 Secondary reference Air Industries Co Inc |
| NAS1221-08-8P | 3/2 Design control — primary reference U.S. Government activity |
| NAS1221-08-8P | 3/2 Design control — primary reference U.S. Government activity |
| NAS1221-08-8P | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| NAS1221-08-8P | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
| NAS1221-08-8P | 5/9 Secondary reference U.S. Government activity |
| NAS1221-08-8P | 5/9 Secondary reference Bronze Craft Inc |
| NAS1221-08-8P | 5/9 Secondary reference F and C Sales Inc |
NSN 5305-01-044-0721 is a Screw,machine, manufactured by Fastener Innovation Technology, Inc. Dba F I T, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-044-0721 has 4 manufacturer part numbers on file: NAS1221-08-8P (Fastener Innovation Technology, Inc. Dba F I T), NAS1221-08-8P (Huck International, Inc), NAS1221-08-8P (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), NAS1221-08-8P (Hi-Shear Corporation).
Key specifications for NAS1221-08-8P: Screw Surface Treatment: CADMIUM AND CHROMATE; Fastener Length: 0.824 INCHES MINIMUM AND 0.854 INCHES MAXIMUM IN; Thread Length: 0.314 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN; Hardness Rating: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM. 17 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.