The Screw,machine, cataloged under National Stock Number 5305-01-102-1853, 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 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-102-1853 |
| Primary Part Number | NAS1221-04E9 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Fastener Innovation Technology, Inc. Dba F I T |
| Status | ACTIVE |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 0.780 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN |
| Screw Material Document and Classification | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.208 INCHES MINIMUM AND 0.258 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1221 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Screw Material | IRON ALLOY 660 |
| 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 | 40 |
| Thread Series Designator | UNJC |
| Head Diameter | 0.194 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | QQ-P-35 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 |
|---|---|
| NAS1221-04E9 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| NAS1221-04E9 | Nor-Cal Supply Co (USA) |
| NAS1221-04E9 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| NAS1221-04E9 PRIMARY | Hi-Shear Corporation (USA) |
| NAS1221-04E9 PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| NAS1221-04E9 | 5/9 Secondary reference U.S. Government activity |
| NAS1221-04E9 | 5/9 Secondary reference Air Industries Co Inc |
| NAS1221-04E9 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| NAS1221-04E9 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1221-04E9 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1221-04E9 | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
| NAS1221-04E9 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1221-04E9 | 5/9 Secondary reference F and C Sales Inc |
NSN 5305-01-102-1853 is a Screw,machine, manufactured by Fastener Innovation Technology, Inc. Dba F I T, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-102-1853 has 5 manufacturer part numbers on file: NAS1221-04E9 (Fastener Innovation Technology, Inc. Dba F I T), NAS1221-04E9 (Nor-Cal Supply Co), NAS1221-04E9 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), NAS1221-04E9 (Hi-Shear Corporation), NAS1221-04E9 (Huck International, Inc).
Key specifications for NAS1221-04E9: Screw Surface Treatment: PASSIVATE; Fastener Length: 0.780 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN; Screw Material Document and Classification: AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE; Thread Length: 0.208 INCHES MINIMUM AND 0.258 INCHES MAXIMUM IN. 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.