The Screw,machine, cataloged under National Stock Number 5305-01-040-4672, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Westgate Systems Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 5305-01-040-4672 |
| Primary Part Number | 2123220 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Westgate Systems Inc |
| Status | ACTIVE |
| Head Height | 0.087 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Thread Length | 0.438 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | BINDING |
| Thread Direction | RIGHT-HAND |
| Screw Material | PLASTIC POLYAMIDE NYLON |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.326 INCHES MINIMUM AND 0.344 INCHES MAXIMUM 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 |
|---|---|
| 2123220 PRIMARY | Westgate Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 102235ADX | 5/9 Secondary reference Airdale Express Llc Div Airdale Express |
| 102235 | 5/9 Secondary reference Federal Screw Products, Inc. |
NSN 5305-01-040-4672 is a Screw,machine, manufactured by Westgate Systems Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-040-4672 has 1 manufacturer part number on file: 2123220 (Westgate Systems Inc).
4 possible matches (shared part number, not a government interchangeability claim): 6150-01-136-6668, 1440-01-214-7164, 6135-01-557-9656. Verify interchangeability with system specifications before substitution.
Key specifications for 2123220: Head Height: 0.087 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN; Fastener Length: 0.500 INCHES NOMINAL IN; Thread Length: 0.438 INCHES NOMINAL 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.