The Screw,machine, cataloged under National Stock Number 5305-00-079-1728, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-079-1728 |
| Primary Part Number | 3MFR1505-8 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Screw Surface Treatment | PRIMER |
| Fastener Length | 0.875 INCHES NOMINAL IN |
| Thread Length | 0.375 INCHES MINIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Thread Series Designator | UNF |
| Head Diameter | 0.577 INCHES MINIMUM AND 0.635 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 |
|---|---|
| 3MFR1505-8 | Hi-Shear Corporation (USA) |
| 3MFR1505-8 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 3MFR1505-8 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 3MFR1505-8 | 5/2 Secondary reference U.S. Government activity |
| 3MFR1505-8 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| 3MFR1505-8 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| 3MFR1505-8 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-00-079-1728 is a Screw,machine, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-079-1728 has 3 manufacturer part numbers on file: 3MFR1505-8 (Hi-Shear Corporation), 3MFR1505-8 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), 3MFR1505-8 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 3MFR1505-8: Screw Surface Treatment: PRIMER; Fastener Length: 0.875 INCHES NOMINAL IN; Thread Length: 0.375 INCHES MINIMUM IN; Hardness Rating: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM. 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.