The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-617-0143, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Colonial Machine & Tool Co Inc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-617-0143 |
| Primary Part Number | D0175PQ |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Colonial Machine & Tool Co Inc |
| Status | ACTIVE |
| Head Height | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Fastener Length | 0.780 INCHES NOMINAL IN |
| Thread Length | 0.470 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.3125 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 24 |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| D0175PQ | Schneider Electric Systems Usa Inc Dba Invensys Systems Inc (USA) |
| D0175PQ PRIMARY | Colonial Machine & Tool Co Inc (USA) |
| Reference | Meaning |
|---|---|
| B0138MK-D0175PQ | 5/9 Secondary reference Eastern Controls, Inc of Pa |
| B0138MK | 5/9 Secondary reference Eastern Controls, Inc of Pa |
| D0175PQ | 5/9 Secondary reference Eastern Controls, Inc of Pa |
NSN 5305-01-617-0143 is a Screw,cap,hexagon Head, manufactured by Colonial Machine & Tool Co Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-617-0143 has 2 manufacturer part numbers on file: D0175PQ (Schneider Electric Systems Usa Inc Dba Invensys Systems Inc), D0175PQ (Colonial Machine & Tool Co Inc).
Key specifications for D0175PQ: Head Height: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN; Fastener Length: 0.780 INCHES NOMINAL IN; Thread Length: 0.470 INCHES NOMINAL IN; Nominal Thread Diameter: 0.3125 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.