The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-541-5136, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 13 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-541-5136 |
| Primary Part Number | S397E4D13 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.164 INCHES NOMINAL IN |
| Fastener Length | 0.227 INCHES NOMINAL IN |
| Thread Length | 0.397 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.248 INCHES IN |
| Head Style | SPLINE DRIVE SHEAR HEAD |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.813 INCHES NOMINAL IN |
| Head Minor Diameter | 0.452 INCHES NOMINAL IN |
| Grip Diameter | 0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| ST3M747E4D13 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| ST3M747E4D13 | Houston Precision Fasteners I Lp (USA) |
| 11833E4D13 | Reid Products Inc. Dba Reid Products Inc (USA) |
| ST3M747E4D13 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| ST3M747E4D13 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M747E4D13 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M747E4D13 | Hi-Shear Corporation (USA) |
| ST3M747E4D13 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| ST3M747E4D13 | Howmet Global Fastening Systems Inc (USA) |
| ST3M747E4D13 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| S397E4D13 PRIMARY | Huck International, Inc (USA) |
| ST3M747E4D13 PRIMARY | The Boeing Company Div Defense (USA) |
| 122896E4D13 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| VS3191E4D13 | 3/2 Design control — primary reference U.S. Government activity |
| 122896E4D13 | 5/2 Secondary reference U.S. Government activity |
| ST3M747E4D13 | 5/9 Secondary reference Weyerhaeuser Co Shipping Container and Containerboard Div |
| 122896E4D13 | 5/9 Secondary reference Sps Technologies Inc |
NSN 5306-01-541-5136 is a Bolt,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-541-5136 has 13 manufacturer part numbers on file: ST3M747E4D13 (Fastener Innovation Technology, Inc. Dba F I T), ST3M747E4D13 (Houston Precision Fasteners I Lp), 11833E4D13 (Reid Products Inc. Dba Reid Products Inc), ST3M747E4D13 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), ST3M747E4D13 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 8 more.
Key specifications for S397E4D13: Head Height: 0.164 INCHES NOMINAL IN; Fastener Length: 0.227 INCHES NOMINAL IN; Thread Length: 0.397 INCHES NOMINAL IN; Nominal Thread Diameter: 0.248 INCHES IN. 13 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.