The Screw,machine, cataloged under National Stock Number 5305-00-948-0766, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-948-0766 |
| Primary Part Number | 51B335-9 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Screw Surface Treatment | CADMIUM AND CHROMATE |
| Fastener Length | 0.921 INCHES MINIMUM AND 0.968 INCHES MAXIMUM IN |
| Thread Length | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Shank Surface Finish | 32.0 MICROINCHES |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 76823-51B335 MANUFACTURERS STANDARD |
| Screw Material | STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 6150 |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | TORQUE SET |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Thread Series Designator | UNF |
| Head Diameter | 0.626 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | QQ-P-416,TY 2 CL 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 |
|---|---|
| 51B335-9 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 51B335-9 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 51B335-9 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 51B335-9 | Hi-Shear Corporation (USA) |
| 51B335-9 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 51B335-9 | 5/2 Secondary reference U.S. Government activity |
| 51B335-9 | 5/2 Secondary reference U.S. Government activity |
| 51B335-9 | 7/9 Vendor item drawing reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
NSN 5305-00-948-0766 is a Screw,machine, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-948-0766 has 5 manufacturer part numbers on file: 51B335-9 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), 51B335-9 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 51B335-9 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), 51B335-9 (Hi-Shear Corporation), 51B335-9 (Howmet Global Fastening Systems Inc).
Key specifications for 51B335-9: Screw Surface Treatment: CADMIUM AND CHROMATE; Fastener Length: 0.921 INCHES MINIMUM AND 0.968 INCHES MAXIMUM IN; Thread Length: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN; Shank Surface Finish: 32.0 MICROINCHES. 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.