The Screw,close Tolerance, cataloged under National Stock Number 5305-01-394-5387, 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 20 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-394-5387 |
| Primary Part Number | 3M926-4L32 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.015 INCHES NOMINAL IN |
| Fastener Length | 2.454 INCHES MINIMUM AND 2.484 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-83488,TY 2, CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.469 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | CETYL ALCOHOL LUBRICANT |
| Head Style | FILLISTER COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN |
| Grip Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Color | WHITE TOP OF HEAD |
| 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 | 28 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.390 INCHES MINIMUM AND 0.395 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 |
|---|---|
| HT4068-4-32A | Howmet Global Fastening Systems Inc (USA) |
| 11883-4L32 | Reid Products Inc. Dba Reid Products Inc (USA) |
| 3M926-4L32 PRIMARY | The Boeing Company Div Defense (USA) |
| HT4068-4-32A | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HT4068-4-32A | Huck International, Inc (USA) |
| HT4068-4-32A | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HT4068-4-32A | Hi-Shear Corporation (USA) |
| HT4068-4-32A | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| Reference | Meaning |
|---|---|
| HT4068-4-32A | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-394-5387 is a Screw,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-394-5387 has 8 manufacturer part numbers on file: HT4068-4-32A (Howmet Global Fastening Systems Inc), 11883-4L32 (Reid Products Inc. Dba Reid Products Inc), 3M926-4L32 (The Boeing Company Div Defense), HT4068-4-32A (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HT4068-4-32A (Huck International, Inc) and 3 more.
Key specifications for 3M926-4L32: Head Height: 0.015 INCHES NOMINAL IN; Fastener Length: 2.454 INCHES MINIMUM AND 2.484 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-C-83488,TY 2, CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.469 INCHES NOMINAL IN. 20 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.