The Bolt,machine, cataloged under National Stock Number 5306-01-201-8870, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-201-8870 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.591 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN |
| Fastener Length | 4.000 INCHES NOMINAL IN |
| Thread Length | 2.250 INCHES NOMINAL IN |
| Criticality Code Justification | ZZZY |
| Material Document and Classification | QQ-N-286,CL.A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 1.000 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.450 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 8 |
| Material | NICKEL ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | C |
| Reference | Meaning |
|---|---|
| 688-1864,1-8UNC-2AX4IN LG | 3/1 Design control — primary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| MIL-B-857,TY3 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
NSN 5306-01-201-8870 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5305-01-476-6109. Verify interchangeability with system specifications before substitution.
Key specifications for 5306-01-201-8870: Head Height: 0.591 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN; Fastener Length: 4.000 INCHES NOMINAL IN; Thread Length: 2.250 INCHES NOMINAL IN; Criticality Code Justification: ZZZY. 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.