The Screw,instrument, cataloged under National Stock Number 5305-00-409-9901, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-409-9901 |
| Item Name | Screw,instrument |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.025 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN |
| Fastener Length | 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN |
| Thread Length | 0.141 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.034 INCHES IN |
| Head Style | FILLISTER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Quantity Per Inch | 120 |
| Material | STEEL COMP 416 OVERALL |
| Thread Series Designator | UNM |
| Head Diameter | 0.051 INCHES MINIMUM AND 0.061 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 334450 | 7/2 Vendor item drawing reference L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products |
| 000-120 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-00-409-9901 is a Screw,instrument, classified under FSC 5305, Screws. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 5905-00-421-0623, 4730-01-341-7053, 5331-01-604-9565. Verify interchangeability with system specifications before substitution.
Key specifications for 5305-00-409-9901: Head Height: 0.025 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN; Fastener Length: 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN; Thread Length: 0.141 INCHES MAXIMUM IN; Material Document and Classification: QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 13 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.