The Screw,machine, cataloged under National Stock Number 5305-01-118-3129, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc. Government technical data includes 18 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through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-118-3129 |
| Primary Part Number | NAS1221-08E19 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 1.512 INCHES MINIMUM AND 1.542 INCHES MAXIMUM IN |
| Screw Material Document and Classification | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.314 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN |
| Hardness Rating | 24.0 ROCKWELL C MINIMUM AND 35.0 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 | 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 | 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-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 |
|---|---|
| NAS1221-08E19 | Nor-Cal Supply Co (USA) |
| NAS1221-08E19 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| NAS1221-08E19 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| NAS1221-08E19 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| NAS1221-08E19 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| NAS1221-08E19 | 5/9 Secondary reference Air Industries Co Inc |
| 10473297 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| NAS1221-08E19 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1221-08E19 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| NAS1221-08E19 | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
| NAS1221-08E19 | 5/9 Secondary reference U.S. Government activity |
| NAS1221-08E19 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1221-08E19 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1221-08E19 | 5/9 Secondary reference F and C Sales Inc |
NSN 5305-01-118-3129 is a Screw,machine, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-118-3129 has 4 manufacturer part numbers on file: NAS1221-08E19 (Nor-Cal Supply Co), NAS1221-08E19 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), NAS1221-08E19 (Fastener Innovation Technology, Inc. Dba F I T), NAS1221-08E19 (Hi-Shear Corporation).
Key specifications for NAS1221-08E19: Screw Surface Treatment: PASSIVATE; Fastener Length: 1.512 INCHES MINIMUM AND 1.542 INCHES MAXIMUM IN; Screw Material Document and Classification: AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE; Thread Length: 0.314 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN. 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.