The Screw,shoulder, cataloged under National Stock Number 5305-00-883-5894, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Rolls-Royce Corporation. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-883-5894 |
| Primary Part Number | 6784204 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Head Height | 0.172 INCHES NOMINAL IN |
| Fastener Length | 1.257 INCHES NOMINAL IN |
| Shoulder Length | 1.006 INCHES MINIMUM AND 1.008 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.312 INCHES MINIMUM AND 0.313 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.175 INCHES MINIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Hardness Rating | 60.0 ROCKWELL C NOMINAL OVERALL |
| Shank Unthreaded Hole Diameter | 0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | SLOT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 8617 OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.145 INCHES MINIMUM AND 1.155 INCHES MAXIMUM FIRST HOLE IN |
| Head Diameter | 0.438 INCHES NOMINAL 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 |
|---|---|
| 6784204 | General Motors Corp (USA) |
| 6784204 PRIMARY | Rolls-Royce Corporation (USA) |
| 6784204 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| 6784204 | Space Age Engineering, Inc (USA) |
| Reference | Meaning |
|---|---|
| 6784204 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
NSN 5305-00-883-5894 is a Screw,shoulder, manufactured by Rolls-Royce Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-883-5894 has 4 manufacturer part numbers on file: 6784204 (General Motors Corp), 6784204 (Rolls-Royce Corporation), 6784204 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), 6784204 (Space Age Engineering, Inc).
Key specifications for 6784204: Head Height: 0.172 INCHES NOMINAL IN; Fastener Length: 1.257 INCHES NOMINAL IN; Shoulder Length: 1.006 INCHES MINIMUM AND 1.008 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.312 INCHES MINIMUM AND 0.313 INCHES MAXIMUM FIRST SHOULDER 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.