The Thumbscrew, cataloged under National Stock Number 5305-01-044-8519, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5305-01-044-8519 |
| Primary Part Number | NSCH-329-001-03 |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier |
| Status | ACTIVE |
| Point Swivel Included Angle | 9.0 DEGREES NOMINAL |
| Point Diameter | 0.185 INCHES NOMINAL IN |
| Head Height | 0.297 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| Point Length | 0.200 INCHES NOMINAL IN |
| Fastener Length | 1.100 INCHES MINIMUM AND 1.223 INCHES MAXIMUM IN |
| Thread Length | 0.900 INCHES MINIMUM AND 1.023 INCHES MAXIMUM IN |
| Point Chamfer Angle | 80.0 DEGREES NOMINAL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | KNURLED NO. 1 |
| Thread Direction | RIGHT-HAND |
| Point Style | UNIVERSAL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303F OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 323 OR STEEL COMP 324 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 385 OR STEEL COMP 302B OR STEEL COMP 384 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 1.000 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 |
|---|---|
| NSCH-329-001-03 PRIMARY | Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier (USA) |
| Reference | Meaning |
|---|---|
| 44652 | 3/2 Design control — primary reference U.S. Government activity |
| 11565975 | 7/2 Vendor item drawing reference Us Army Aviation and Missile Command |
NSN 5305-01-044-8519 is a Thumbscrew, manufactured by Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-044-8519 has 1 manufacturer part number on file: NSCH-329-001-03 (Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier).
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-394-7410, 6515-01-419-8947. Verify interchangeability with system specifications before substitution.
Key specifications for NSCH-329-001-03: Point Swivel Included Angle: 9.0 DEGREES NOMINAL; Point Diameter: 0.185 INCHES NOMINAL IN; Head Height: 0.297 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN; Point Length: 0.200 INCHES NOMINAL IN. 16 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.