The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-203-2850, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-203-2850 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Fastener Length | 0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE FASTENER |
| Thread Length | 0.097 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Locking Feature | PATCH THREADS |
| Surface Treatment | PASSIVATE FASTENER |
| Minimum Tensile Strength | 80000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 302 OR STEEL COMP 303CU OR STEEL COMP 302B OR STEEL COMP 303MA OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 303 PLUS X OR STEEL COMP 304L OR STEEL COMP 303SE OR STEEL COMP 384 OR STEEL COMP 305 OR STEEL COMP 316 FASTENER |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.238 INCHES MINIMUM AND 0.279 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 |
|---|---|
| 1092683P15 | 3/2 Design control — primary reference U.S. Government activity |
| 1092683P15 | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
NSN 5305-01-203-2850 is a Screw,cap,socket Head, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-203-2850: Fastener Length: 0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN; Surface Treatment Document and Classification: ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE FASTENER; Thread Length: 0.097 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.138 INCHES IN. 16 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.