The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-546-2009, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-546-2009 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.080 INCHES NOMINAL IN |
| Fastener Length | 0.545 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416, TYI, CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.545 INCHES MAXIMUM IN |
| Material Document and Classification | AMS6322 ASSN STD 1ST MATERIAL RESPONSE OR AMS6382 ASSN STD 2ND MATERIAL RESPONSE OR AMS6415 ASSN STD 3RD MATERIAL RESPONSE OR MIL-S-8503 MIL SPEC 4TH MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Locking Feature | PATCH GRIP |
| Surface Treatment | CADMIUM OVERALL |
| Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | PLASTIC, POLYETHYLENE (PP) LOCKING FEATURE |
| Material | STEEL COMP 8740 OR STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8735 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.371 INCHES MINIMUM AND 0.385 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 |
|---|---|
| NAS1189-3T10B | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-546-2009 is a Screw,cap,socket Head, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-546-2009: Head Height: 0.080 INCHES NOMINAL IN; Fastener Length: 0.545 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416, TYI, CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.545 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.