The Setscrew, cataloged under National Stock Number 5305-00-253-5010, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Fairbanks Morse, Llc. Government technical data includes 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-253-5010 |
| Primary Part Number | MADG853PC19 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Fastener Length | 0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Thread Length | 0.312 INCHES MAXIMUM IN |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | CASEHARDENED |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | CUP |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| MADG853PC19 PRIMARY | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| MADG853PC19 | 5/9 Secondary reference U.S. Government activity |
| 81221S41-764PC19 | 3/2 Design control — primary reference U.S. Government activity |
| FFS103TYPE2STYLE4 | 4/1 Identification reference U.S. Government activity |
NSN 5305-00-253-5010 is a Setscrew, manufactured by Fairbanks Morse, Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-253-5010 has 1 manufacturer part number on file: MADG853PC19 (Fairbanks Morse, Llc).
Key specifications for MADG853PC19: Fastener Length: 0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN; Thread Length: 0.312 INCHES MAXIMUM IN; Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL; Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL. 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.