The Screw,close Tolerance, cataloged under National Stock Number 5305-01-723-8937, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-723-8937 |
| Primary Part Number | 3M938-5-8-6 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.016 INCHES MAXIMUM IN |
| Thread Length | 0.350 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.3125 INCHES IN |
| Head Style | FILLISTER COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | ALUMINUM OVERALL |
| Minimum Tensile Strength | 125000 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 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.4689 INCHES MINIMUM AND 0.4739 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 |
|---|---|
| 3M938-5-8-6 PRIMARY | The Boeing Company Div Defense (USA) |
| WC4072-5-8-6 | West Coast Aerospace, Inc. (USA) |
| HT4072-5-8-6 | Hi-Shear Corporation (USA) |
NSN 5305-01-723-8937 is a Screw,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-723-8937 has 3 manufacturer part numbers on file: 3M938-5-8-6 (The Boeing Company Div Defense), WC4072-5-8-6 (West Coast Aerospace, Inc.), HT4072-5-8-6 (Hi-Shear Corporation).
Key specifications for 3M938-5-8-6: Head Height: 0.016 INCHES MAXIMUM IN; Thread Length: 0.350 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.3125 INCHES IN; Head Style: FILLISTER COUNTERSUNK. 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.