The Screw,machine, cataloged under National Stock Number 5305-01-121-8468, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Mac Fasteners, Inc. Dba Mac Fasteners Inc. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-121-8468 |
| Primary Part Number | NAS1802-4-11 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Mac Fasteners, Inc. Dba Mac Fasteners Inc |
| Status | ACTIVE |
| Head Height | 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 0.671 INCHES MINIMUM AND 0.718 INCHES MAXIMUM IN |
| Screw Material Document and Classification | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.600 INCHES MINIMUM AND 0.718 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1802 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Screw Material | IRON ALLOY 660 |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 | F |
| Part Number | Manufacturer |
|---|---|
| NAS1802-4-11 | Mac Fasteners, Inc. Dba Mac Fasteners Inc (USA) |
| NAS1802-4-11 | Heartland Precision Fasteners Inc (USA) |
| Reference | Meaning |
|---|---|
| 5305PL2143858 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 10115090 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| NAS1802-4-11 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-121-8468 is a Screw,machine, manufactured by Mac Fasteners, Inc. Dba Mac Fasteners Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-121-8468 has 2 manufacturer part numbers on file: NAS1802-4-11 (Mac Fasteners, Inc. Dba Mac Fasteners Inc), NAS1802-4-11 (Heartland Precision Fasteners Inc).
Key specifications for NAS1802-4-11: Head Height: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; Screw Surface Treatment: PASSIVATE; Fastener Length: 0.671 INCHES MINIMUM AND 0.718 INCHES MAXIMUM IN; Screw Material Document and Classification: AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE. 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.