The Bolt,close Tolerance, cataloged under National Stock Number 5306-00-947-4231, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5306-00-947-4231 |
| Primary Part Number | 2-11798-1 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
| Status | ACTIVE |
| Extended Washer Thickness | 0.098 INCHES NOMINAL IN |
| Head Height | 0.530 INCHES NOMINAL IN |
| Fastener Length | 2.531 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.940 INCHES MINIMUM AND 0.950 INCHES MAXIMUM IN |
| Thread Length | 0.906 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.625 INCHES NOMINAL IN |
| Width Between Flats | 0.616 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN |
| Grip Diameter | 0.4985 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| 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 |
|---|---|
| 2-11798-1 PRIMARY | Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector (USA) |
| Reference | Meaning |
|---|---|
| 2-11798-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
NSN 5306-00-947-4231 is a Bolt,close Tolerance, manufactured by Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-947-4231 has 1 manufacturer part number on file: 2-11798-1 (Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector).
1 possible match (shared part number, not a government interchangeability claim): 5962-01-262-2412. Verify interchangeability with system specifications before substitution.
Key specifications for 2-11798-1: Extended Washer Thickness: 0.098 INCHES NOMINAL IN; Head Height: 0.530 INCHES NOMINAL IN; Fastener Length: 2.531 INCHES NOMINAL IN; Extended Washer Diameter: 0.940 INCHES MINIMUM AND 0.950 INCHES MAXIMUM IN. 15 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.