The Screw,machine, cataloged under National Stock Number 5305-01-672-3102, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-672-3102 |
| Primary Part Number | 1018638-1 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Screw Material Document and Classification | AMS5853 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.875 INCHES NOMINAL IN |
| Spline Major Diameter | 0.2455 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Screw Material | STEEL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Hole Configuration Style | ROUND INTERNAL HEXAGON |
| Head Diameter | 0.467 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 |
|---|---|
| 1018638-1 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| Reference | Meaning |
|---|---|
| 377X-1018638 | D/9 Drawing number reference only Hamilton Sundstrand Corporation Dba Collins Aerospace |
NSN 5305-01-672-3102 is a Screw,machine, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-672-3102 has 1 manufacturer part number on file: 1018638-1 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
Key specifications for 1018638-1: Screw Material Document and Classification: AMS5853 ASSN STD SINGLE MATERIAL RESPONSE; Thread Length: 0.875 INCHES NOMINAL IN; Spline Major Diameter: 0.2455 INCHES NOMINAL IN; Nominal Thread Diameter: 0.250 INCHES IN. 10 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.