The Bolt,assembled Washer, cataloged under National Stock Number 5306-00-055-0834, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Concentric Rockford Inc. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-055-0834 |
| Primary Part Number | 2130069 |
| Item Name | Bolt,assembled Washer |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Concentric Rockford Inc |
| Status | ACTIVE |
| Extended Washer Thickness | 0.062 INCHES NOMINAL IN |
| Head Height | 0.250 INCHES NOMINAL IN |
| Fastener Length | 1.375 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.400 INCHES NOMINAL IN |
| Primary Washer Outside Diameter | 0.400 INCHES NOMINAL IN |
| Thread Length | 0.750 INCHES MINIMUM IN |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | CASEHARDENED |
| Thread Direction | RIGHT-HAND |
| Primary Washer Material Thickness | 0.063 INCHES NOMINAL IN |
| Width Between Flats | 0.250 INCHES NOMINAL IN |
| Surface Treatment | COPPER PRIMARY WASHER |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 1022 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Washer Quantity | 1 |
| 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 |
|---|---|
| 2130069 | Van Air & Hydraulics Inc Dba Van-Air & Hydraulics (USA) |
| 2130069 PRIMARY | Concentric Rockford Inc (USA) |
| Reference | Meaning |
|---|---|
| 5306PL0706108 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| GC3590-11 | 5/9 Secondary reference Concentric Rockford Inc |
NSN 5306-00-055-0834 is a Bolt,assembled Washer, manufactured by Concentric Rockford Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-055-0834 has 2 manufacturer part numbers on file: 2130069 (Van Air & Hydraulics Inc Dba Van-Air & Hydraulics), 2130069 (Concentric Rockford Inc).
Key specifications for 2130069: Extended Washer Thickness: 0.062 INCHES NOMINAL IN; Head Height: 0.250 INCHES NOMINAL IN; Fastener Length: 1.375 INCHES NOMINAL IN; Extended Washer Diameter: 0.400 INCHES NOMINAL IN. 19 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.