The Screw,machine, cataloged under National Stock Number 5305-01-068-6313, 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 17 specifications, cited from the U.S. Government catalog. The record lists 6 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through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-068-6313 |
| Primary Part Number | NAS1221-06E3 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 0.450 INCHES MINIMUM AND 0.480 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 | 0.252 INCHES MINIMUM AND 0.302 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1221 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Screw Material | STEEL COMP 8617 |
| 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 | 0.244 INCHES MINIMUM AND 0.279 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 |
|---|---|
| NAS1221-06E3 PRIMARY | Hi-Shear Corporation (USA) |
| NAS1221-06E3 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| NAS1221-06E3 | Satair A/s (DNK) |
| NAS1221-06E3 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| NAS1221-06E3 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| NAS1221-06E3 | Nor-Cal Supply Co (USA) |
| Reference | Meaning |
|---|---|
| NAS1221-06E3 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1221-06E3 | 5/9 Secondary reference U.S. Government activity |
| NAS1221-06E3 | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
| NAS1221-06E3 | 5/9 Secondary reference F and C Sales Inc |
| NAS1221-06E31 | 5/9 Secondary reference Air Industries Co Inc |
| NAS1221-06E3 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1221-06E3 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1221-06E3 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 10114946 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5305-01-068-6313 is a Screw,machine, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-068-6313 has 6 manufacturer part numbers on file: NAS1221-06E3 (Hi-Shear Corporation), NAS1221-06E3 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), NAS1221-06E3 (Satair A/s), NAS1221-06E3 (Fairchild Fasteners Europe - Vsd Gmbh), NAS1221-06E3 (Fastener Innovation Technology, Inc. Dba F I T) and 1 more.
Key specifications for NAS1221-06E3: Screw Surface Treatment: PASSIVATE; Fastener Length: 0.450 INCHES MINIMUM AND 0.480 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: 0.252 INCHES MINIMUM AND 0.302 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.