The Screw,shoulder, cataloged under National Stock Number 5305-00-448-7124, 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 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-448-7124 |
| Primary Part Number | 549-0948-003 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Head Height | 0.023 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN |
| Fastener Length | 0.255 INCHES MINIMUM AND 0.258 INCHES MAXIMUM IN |
| Shoulder Length | 0.030 INCHES NOMINAL SECOND SHOULDER IN |
| Shoulder Length | 0.038 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.117 INCHES NOMINAL SECOND SHOULDER IN |
| Shoulder Diameter | 0.132 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Length | 0.125 INCHES NOMINAL IN |
| Shoulder Shape | ROUND ALL SHOULDERS |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 440F OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.184 INCHES MINIMUM AND 0.190 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 |
|---|---|
| 549-0948-003 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| Reference | Meaning |
|---|---|
| 549-0948-003 | 5/2 Secondary reference U.S. Government activity |
NSN 5305-00-448-7124 is a Screw,shoulder, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-448-7124 has 1 manufacturer part number on file: 549-0948-003 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 549-0948-003: Head Height: 0.023 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN; Fastener Length: 0.255 INCHES MINIMUM AND 0.258 INCHES MAXIMUM IN; Shoulder Length: 0.030 INCHES NOMINAL SECOND SHOULDER IN; Shoulder Length: 0.038 INCHES NOMINAL 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.