The Screw,machine, cataloged under National Stock Number 5305-00-920-0590, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Dialogic Corp Dba Dialogic Fasteners. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-920-0590 |
| Primary Part Number | MS27039-1-31 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Dialogic Corp Dba Dialogic Fasteners |
| Status | ACTIVE |
| Head Height | 0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN |
| Screw Surface Treatment | CADMIUM AND CHROMATE |
| Fastener Length | 1.954 INCHES MINIMUM AND 2.001 INCHES MAXIMUM IN |
| Screw Material Document and Classification | MIL-S-6050 MIL SPEC 1ST MATERIAL RESPONSE OR AMS 6300 ASSN STD 2ND MATERIAL RESPONSE |
| Thread Length | 0.377 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 8630 OR STEEL COMP 4037 |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNF |
| Head Diameter | 0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES |
| 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 |
|---|---|
| MS27039-1-31 | Dialogic Corp Dba Dialogic Fasteners (USA) |
| MS27039-1-31 | Leonardo Spa Helicopters Division - Production Site (ITA) |
| Reference | Meaning |
|---|---|
| 5305PL0742241 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| MS27039-1-31 | 5/9 Secondary reference U.S. Government activity |
| AN525-10-32 | 5/9 Secondary reference U.S. Government activity |
| NAS229-31 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| MS27039-1-31 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-00-920-0590 is a Screw,machine, manufactured by Dialogic Corp Dba Dialogic Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-920-0590 has 2 manufacturer part numbers on file: MS27039-1-31 (Dialogic Corp Dba Dialogic Fasteners), MS27039-1-31 (Leonardo Spa Helicopters Division - Production Site).
Key specifications for MS27039-1-31: Head Height: 0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN; Screw Surface Treatment: CADMIUM AND CHROMATE; Fastener Length: 1.954 INCHES MINIMUM AND 2.001 INCHES MAXIMUM IN; Screw Material Document and Classification: MIL-S-6050 MIL SPEC 1ST MATERIAL RESPONSE OR AMS 6300 ASSN STD 2ND MATERIAL RESPONSE. 17 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.