The Screw,machine, cataloged under National Stock Number 5305-01-191-0380, 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 16 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-191-0380 |
| Primary Part Number | SC2177T06-06 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Head Height | 0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN |
| Screw Surface Treatment | CADMIUM AND CHROMATE |
| Fastener Length | 0.375 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| Thread Length | 0.313 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | TORQUE SET |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNJC |
| Head Diameter | 0.242 INCHES MINIMUM IN |
| Screw Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE |
| 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 |
|---|---|
| FIT112-0023-0106 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 123180A06T06 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| SC2177T06-06 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| AIC4043-06-06 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| A423-0106 | 5/9 Secondary reference U.S. Government activity |
| A423-0106 | 5/9 Secondary reference Huck International, Inc |
| 123180A06T06 | 3/2 Design control — primary reference U.S. Government activity |
| LE112-0023-0106 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| PBF1384-0106 | 5/9 Secondary reference Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| LE112-0023-0106 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| LE112-0023-0106 | 5/9 Secondary reference Fastener Innovation Technology, Inc. Dba F I T |
| SII-1093-0106 | 5/9 Secondary reference Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries |
| LE112-0023-0106 | 7/2 Vendor item drawing reference The Boeing Company Div Legacy Am&m |
NSN 5305-01-191-0380 is a Screw,machine, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-191-0380 has 4 manufacturer part numbers on file: FIT112-0023-0106 (Fastener Innovation Technology, Inc. Dba F I T), 123180A06T06 (Sps Technologies, Llc Dba PB Fasteners), SC2177T06-06 (Howmet Global Fastening Systems Inc), AIC4043-06-06 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company).
Key specifications for SC2177T06-06: Head Height: 0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN; Screw Surface Treatment: CADMIUM AND CHROMATE; Fastener Length: 0.375 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN; Thread Length: 0.313 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN. 16 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.