The Screw,machine, cataloged under National Stock Number 5305-01-358-8686, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-358-8686 |
| Primary Part Number | PWA55078-9 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Head Height | 0.470 INCHES NOMINAL IN |
| Fastener Length | 0.330 INCHES NOMINAL IN |
| Screw Material Document and Classification | AISI 304 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.330 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | KNURLED NO. 1 |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 304 |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 24 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.340 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 |
|---|---|
| PWA55078-9 | Emery Corp (USA) |
| PWA55078-9 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| PWA55078-9 | Reno Machine Company, Inc., the Dba Reno Machine Co Inc (USA) |
NSN 5305-01-358-8686 is a Screw,machine, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-358-8686 has 3 manufacturer part numbers on file: PWA55078-9 (Emery Corp), PWA55078-9 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), PWA55078-9 (Reno Machine Company, Inc., the Dba Reno Machine Co Inc).
Key specifications for PWA55078-9: Head Height: 0.470 INCHES NOMINAL IN; Fastener Length: 0.330 INCHES NOMINAL IN; Screw Material Document and Classification: AISI 304 ASSN STD SINGLE MATERIAL RESPONSE; Thread Length: 0.330 INCHES NOMINAL IN. 13 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.