The Screw,close Tolerance, cataloged under National Stock Number 5305-00-151-6211, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc. Government technical data includes 22 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-00-151-6211 |
| Primary Part Number | 3MA123-3-6 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Fastener Length | 0.765 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.380 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN |
| Hardness Rating | 248.0 BRINELL STANDARD MINIMUM AND 341.0 BRINELL STANDARD MAXIMUM OVERALL |
| Material Document and Classification | AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Grip Diameter | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 130000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 85000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.377 INCHES MINIMUM AND 0.381 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 |
|---|---|
| 3MA123-3-6 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 3MA123-3-6 | The Boeing Company Div Defense (USA) |
| 3MA123-3-6 PRIMARY | Hi-Shear Corporation (USA) |
| 3MA123-3-6 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 3MA123-3-6 PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| 3MA123-3-6 | 5/9 Secondary reference U.S. Government activity |
| 3MA123-3-6 | 3/2 Design control — primary reference U.S. Government activity |
| 3MFR123-3-6P | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
NSN 5305-00-151-6211 is a Screw,close Tolerance, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-151-6211 has 5 manufacturer part numbers on file: 3MA123-3-6 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), 3MA123-3-6 (The Boeing Company Div Defense), 3MA123-3-6 (Hi-Shear Corporation), 3MA123-3-6 (Sps Technologies, Llc Dba PB Fasteners), 3MA123-3-6 (Huck International, Inc).
Key specifications for 3MA123-3-6: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Fastener Length: 0.765 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 22 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.