The Screw,machine, cataloged under National Stock Number 5305-00-528-7892, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Kearflex Engineering Company. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5305-00-528-7892 |
| Primary Part Number | SFC172-3BB |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Kearflex Engineering Company |
| Status | ACTIVE |
| Screw Surface Treatment | OXIDE |
| Fastener Length | 0.187 INCHES NOMINAL IN |
| Thread Length | 0.159 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.073 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Screw Material | COPPER ALLOY |
| Internal Drive Style | SLOT |
| Thread Quantity Per Inch | 72 |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| SFC172-3BB PRIMARY | Kearflex Engineering Company (USA) |
| Reference | Meaning |
|---|---|
| 10125360 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5305-00-528-7892 is a Screw,machine, manufactured by Kearflex Engineering Company, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-528-7892 has 1 manufacturer part number on file: SFC172-3BB (Kearflex Engineering Company).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-251-2740. Verify interchangeability with system specifications before substitution.
Key specifications for SFC172-3BB: Screw Surface Treatment: OXIDE; Fastener Length: 0.187 INCHES NOMINAL IN; Thread Length: 0.159 INCHES MINIMUM IN; Nominal Thread Diameter: 0.073 INCHES IN. 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.