The Screw,machine, cataloged under National Stock Number 5305-01-412-0890, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Pilgrim Screw Corporation Dba Pilgrim Aerospace Fasteners. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5305-01-412-0890 |
| Primary Part Number | MS24693-C95 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Pilgrim Screw Corporation Dba Pilgrim Aerospace Fasteners |
| Status | ACTIVE |
| Fastener Length | 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Screw Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Bearing Surface of Head Surface Treatment | OXIDE |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL CORROSION RESISTING |
| Color | BLACK |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.477 INCHES MINIMUM AND 0.507 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 |
|---|---|
| MS24693-C95 PRIMARY | Pilgrim Screw Corporation Dba Pilgrim Aerospace Fasteners (USA) |
| Reference | Meaning |
|---|---|
| MS24693-95 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-412-0890 is a Screw,machine, manufactured by Pilgrim Screw Corporation Dba Pilgrim Aerospace Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-412-0890 has 1 manufacturer part number on file: MS24693-C95 (Pilgrim Screw Corporation Dba Pilgrim Aerospace Fasteners).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-626-1756. Verify interchangeability with system specifications before substitution.
Key specifications for MS24693-C95: Fastener Length: 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN; Screw Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE; Thread Length: 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN; Bearing Surface of Head Surface Treatment: OXIDE. 15 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.