The Screw,machine, cataloged under National Stock Number 5305-00-223-2575, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Unison Industries Llc. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-223-2575 |
| Primary Part Number | 61441 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Unison Industries Llc |
| Status | ACTIVE |
| Head Height | 0.092 INCHES NOMINAL IN |
| Fastener Length | 0.219 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN |
| Thread Length | 0.219 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | BINDING |
| 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) |
| Head Diameter | 0.335 INCHES NOMINAL IN |
| 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 |
|---|---|
| 61441 PRIMARY | Unison Industries Llc (USA) |
| Reference | Meaning |
|---|---|
| 61441 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-00-223-2575 is a Screw,machine, manufactured by Unison Industries Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-223-2575 has 1 manufacturer part number on file: 61441 (Unison Industries Llc).
1 possible match (shared part number, not a government interchangeability claim): 5905-00-477-0090. Verify interchangeability with system specifications before substitution.
Key specifications for 61441: Head Height: 0.092 INCHES NOMINAL IN; Fastener Length: 0.219 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN; Thread Length: 0.219 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.164 INCHES IN. 12 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.