The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-030-4656, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 10 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-030-4656 |
| Primary Part Number | ST3M571-3-13 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Extended Washer Thickness | 0.054 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN |
| Head Height | 0.265 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN |
| Fastener Length | 1.194 INCHES MINIMUM AND 1.224 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.340 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN |
| Thread Length | 0.372 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN |
| Material Document and Classification | 23-112,MCDONNEL DOUGLAS CORP MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN |
| Width Between Flats | 0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN |
| Grip Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL 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 |
|---|---|
| GS1030-3-13 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| ST3M571-3-13 | J M Precision Inc (USA) |
| MB84-3-13 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| PBF23T3P3 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| S11-1059-3-13 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| MB84-3-13 | Hi-Shear Corporation (USA) |
| 74328-3-3 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M571-3-13 PRIMARY | The Boeing Company Div Defense (USA) |
| VAL23033-3-13 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| AIC752-3-13 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| ST3M571-3-13 | 5/2 Secondary reference U.S. Government activity |
| 74328-3-3 | 5/2 Secondary reference U.S. Government activity |
| VS3060-3-13 | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| S371-3-13 | 5/9 Secondary reference U.S. Government activity |
| S371-3-13 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| BM3326-3-13 | 5/9 Secondary reference U.S. Government activity |
| BM3326-3-13 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| VS3060-3-13 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-030-4656 is a Bolt,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-030-4656 has 10 manufacturer part numbers on file: GS1030-3-13 (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), ST3M571-3-13 (J M Precision Inc), MB84-3-13 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), PBF23T3P3 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), S11-1059-3-13 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries) and 5 more.
Key specifications for ST3M571-3-13: Extended Washer Thickness: 0.054 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN; Head Height: 0.265 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN; Fastener Length: 1.194 INCHES MINIMUM AND 1.224 INCHES MAXIMUM IN; Extended Washer Diameter: 0.340 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN. 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.