The Screw,machine, cataloged under National Stock Number 5305-01-357-3979, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 14 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 5305-01-357-3979 |
| Primary Part Number | SC5049-08-7 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Head Height | 0.096 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| Fastener Length | 0.410 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| Screw Material Document and Classification | AMS4967 ASSN STD SINGLE MATERIAL RESPONSE OR AMS4928 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.348 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN |
| Screw Material | TITANIUM ALLOY UNS R56400 |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNJC |
| 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 |
|---|---|
| SC5049-08-7 | Howmet Global Fastening Systems Inc (USA) |
| AIC4463-08-7 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| 111290-08H-7 | 5/2 Secondary reference U.S. Government activity |
| NAS4004 | 3/1 Design control — primary reference U.S. Government activity |
| 3D0005-08-7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-357-3979 is a Screw,machine, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-357-3979 has 2 manufacturer part numbers on file: SC5049-08-7 (Howmet Global Fastening Systems Inc), AIC4463-08-7 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company).
5 possible matches (shared part number, not a government interchangeability claim): 5305-01-357-3987, 5306-01-363-7003, 5306-01-367-9819. Verify interchangeability with system specifications before substitution.
Key specifications for SC5049-08-7: Head Height: 0.096 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN; Fastener Length: 0.410 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN; Screw Material Document and Classification: AMS4967 ASSN STD SINGLE MATERIAL RESPONSE OR AMS4928 ASSN STD SINGLE MATERIAL RESPONSE; Thread Length: 0.348 INCHES NOMINAL IN. 14 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.