The Screw,machine, cataloged under National Stock Number 5305-00-236-3598, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-236-3598 |
| Primary Part Number | M2023F |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| Status | ACTIVE |
| Fastener Length | 3.730 INCHES NOMINAL IN |
| Thread Length | 0.500 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| 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 |
|---|---|
| M2023F PRIMARY | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA) |
| 400256 | Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 70226 | 5/9 Secondary reference U.S. Government activity |
| 965649 | 5/9 Secondary reference U.S. Government activity |
| M2023F | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5305-00-236-3598 is a Screw,machine, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-236-3598 has 2 manufacturer part numbers on file: M2023F (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic), 400256 (Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc).
5 possible matches (shared part number, not a government interchangeability claim): 5996-00-645-9623, 5340-00-734-8102, 5961-00-860-7691. Verify interchangeability with system specifications before substitution.
Key specifications for M2023F: Fastener Length: 3.730 INCHES NOMINAL IN; Thread Length: 0.500 INCHES MINIMUM IN; Nominal Thread Diameter: 0.164 INCHES IN; Head Style: PAN. 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.