The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-587-2101, 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 6 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 | 5306-01-587-2101 |
| Primary Part Number | 3M1277E3D8AL |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Grip Diameter | 0.202 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 3M1277E3D8AL PRIMARY | The Boeing Company Div Defense (USA) |
| 3M1277E3D8AL | Howmet Global Fastening Systems Inc (USA) |
| 3M1277E3D8AL | Sps Technologies, Llc Dba PB Fasteners (USA) |
NSN 5306-01-587-2101 is a Bolt,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-587-2101 has 3 manufacturer part numbers on file: 3M1277E3D8AL (The Boeing Company Div Defense), 3M1277E3D8AL (Howmet Global Fastening Systems Inc), 3M1277E3D8AL (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 3M1277E3D8AL: Criticality Code Justification: AGAV; Nominal Thread Diameter: 0.190 INCHES IN; Grip Diameter: 0.202 INCHES MAXIMUM IN; Thread Class: 3A A. 6 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.
NSN 5306-01-587-2101 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.