The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-256-6812, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Deere & Co. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-256-6812 |
| Primary Part Number | T11887 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Deere & Co |
| Status | ACTIVE |
| Surface Finish | 50.0 MICROINCHES GRIP |
| Width Across Flats | 0.1542 INCHES MINIMUM AND 0.1582 INCHES MAXIMUM IN |
| Fastener Length | 0.480 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN |
| Thread Length | 0.290 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Locking Feature | PATCH THREADS |
| Internal Drive Style | HEXAGON |
| Countersink Angle | 59.7 DEGREES MINIMUM AND 60.3 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 8620 OVERALL |
| Thread Series Designator | UNEF |
| Head Diameter | 0.427 INCHES MINIMUM AND 0.432 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 |
| Part Number | Manufacturer |
|---|---|
| T11887 PRIMARY | Deere & Co (USA) |
NSN 5305-01-256-6812 is a Screw,cap,socket Head, manufactured by Deere & Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-256-6812 has 1 manufacturer part number on file: T11887 (Deere & Co).
Key specifications for T11887: Surface Finish: 50.0 MICROINCHES GRIP; Width Across Flats: 0.1542 INCHES MINIMUM AND 0.1582 INCHES MAXIMUM IN; Fastener Length: 0.480 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN; Thread Length: 0.290 INCHES MINIMUM IN. 15 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.