The Screw,externally Relieved Body, cataloged under National Stock Number 5305-00-649-8587, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 12 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 | 5305-00-649-8587 |
| Primary Part Number | 546-8189-003 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Head Height | 0.132 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN |
| Fastener Length | 3.075 INCHES NOMINAL IN |
| Thread Length | 0.345 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN |
| First Diameter From Head | 0.116 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN |
| Head Style | FILLISTER COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.139 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.325 INCHES NOMINAL IN |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Third Diameter From Head | 0.224 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN |
| Head Diameter | 0.235 INCHES MINIMUM AND 0.245 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 |
|---|---|
| 546-8189-003 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
NSN 5305-00-649-8587 is a Screw,externally Relieved Body, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-649-8587 has 1 manufacturer part number on file: 546-8189-003 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 546-8189-003: Head Height: 0.132 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN; Fastener Length: 3.075 INCHES NOMINAL IN; Thread Length: 0.345 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN; First Diameter From Head: 0.116 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN. 12 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.