The Screw,machine, cataloged under National Stock Number 5305-01-472-4541, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-472-4541 |
| Primary Part Number | 91772A050 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 0.308 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.990 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | SLOT |
| Thread Quantity Per Inch | 56 |
| 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 |
|---|---|
| 91772A050 PRIMARY | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| 9820136P001 | 5/9 Secondary reference Prospective Computer Analysts Incorporated |
| 1-PPM-3F37 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-472-4541 is a Screw,machine, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-472-4541 has 1 manufacturer part number on file: 91772A050 (Mcmaster-Carr Supply Co).
Key specifications for 91772A050: Screw Surface Treatment: PASSIVATE; Fastener Length: 0.308 INCHES NOMINAL IN; Nominal Thread Diameter: 0.990 INCHES IN; Head Style: PAN. 8 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.