The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-577-2813, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-577-2813 |
| Primary Part Number | SLB732V6-22 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok |
| Status | ACTIVE |
| Extended Washer Thickness | 0.081 INCHES MINIMUM AND 0.101 INCHES MAXIMUM IN |
| Head Height | 0.378 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN |
| Fastener Length | 2.375 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.274 INCHES NOMINAL IN |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Grip Diameter | 0.375 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| 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 |
|---|---|
| HS6170V6-22 | Boeing Distribution Services, Inc. (USA) |
| HS6170V6-22 | Lynn Electronics Llc (USA) |
| HS6170V6-22 | Mcnichol, Daniel William J (USA) |
| HS6170V6-22 | Echelon Supply and Service, Inc. (USA) |
| SLB732V6-22 PRIMARY | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| Reference | Meaning |
|---|---|
| HS6170V6-22 | 7/2 Vendor item drawing reference The Boeing Company |
NSN 5306-01-577-2813 is a Bolt,close Tolerance, manufactured by Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-577-2813 has 5 manufacturer part numbers on file: HS6170V6-22 (Boeing Distribution Services, Inc.), HS6170V6-22 (Lynn Electronics Llc), HS6170V6-22 (Mcnichol, Daniel William J), HS6170V6-22 (Echelon Supply and Service, Inc.), SLB732V6-22 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok).
Key specifications for SLB732V6-22: Extended Washer Thickness: 0.081 INCHES MINIMUM AND 0.101 INCHES MAXIMUM IN; Head Height: 0.378 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN; Fastener Length: 2.375 INCHES NOMINAL IN; Extended Washer Diameter: 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM 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.