The Setscrew, cataloged under National Stock Number 5305-01-253-5705, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Roller Bearing Co of America, Inc Div Pic Design. Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-253-5705 |
| Primary Part Number | MSS2-1 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Roller Bearing Co of America, Inc Div Pic Design |
| Status | ACTIVE |
| Width Across Flats | 0.8 MILLIMETERS NOMINAL MM |
| External Thread Tolerance Class | 4H6H |
| Fastener Length | 3.80 MILLIMETERS NOMINAL MM |
| Thread Pitch in Millimeters | 0.4 |
| Nominal Thread Diameter | 2.0 MILLIMETERS MM |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Internal Drive Style | HEXAGON |
| Material | STEEL CORROSION RESISTING HEAD |
| Thread Series Designator | ISO M |
| 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 |
|---|---|
| MSS2-1 PRIMARY | Roller Bearing Co of America, Inc Div Pic Design (USA) |
NSN 5305-01-253-5705 is a Setscrew, manufactured by Roller Bearing Co of America, Inc Div Pic Design, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-253-5705 has 1 manufacturer part number on file: MSS2-1 (Roller Bearing Co of America, Inc Div Pic Design).
Key specifications for MSS2-1: Width Across Flats: 0.8 MILLIMETERS NOMINAL MM; External Thread Tolerance Class: 4H6H; Fastener Length: 3.80 MILLIMETERS NOMINAL MM; Thread Pitch in Millimeters: 0.4. 11 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.