The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-300-3311, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Goldinger, Bernard Dba Conair Aviation Associates. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-300-3311 |
| Primary Part Number | NAS6305L6 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Goldinger, Bernard Dba Conair Aviation Associates |
| Status | ACTIVE |
| Head Height | 0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN |
| Fastener Length | 1.251 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.438 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | DISHED HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.803 INCHES MINIMUM AND 0.823 INCHES MAXIMUM IN |
| Width Between Flats | 0.497 INCHES NOMINAL IN |
| Grip Diameter | 0.312 INCHES NOMINAL IN |
| Locking Feature | DETENT RING THREADS |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | IRON ALLOY 660 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 |
|---|---|
| NAS6305L6 | Aero Fastener Co Inc (USA) |
| NAS6305L6 | Fisher - Fairchild Corporation (USA) |
| NAS6305L6 PRIMARY | Goldinger, Bernard Dba Conair Aviation Associates (USA) |
| NAS6305L6 | Aero Hardware & Parts Co Inc (USA) |
| Reference | Meaning |
|---|---|
| NAS6305L6 | 5/9 Secondary reference S P I Inc |
| NAS6305L6 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-300-3311 is a Bolt,close Tolerance, manufactured by Goldinger, Bernard Dba Conair Aviation Associates, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-300-3311 has 4 manufacturer part numbers on file: NAS6305L6 (Aero Fastener Co Inc), NAS6305L6 (Fisher - Fairchild Corporation), NAS6305L6 (Goldinger, Bernard Dba Conair Aviation Associates), NAS6305L6 (Aero Hardware & Parts Co Inc).
Key specifications for NAS6305L6: Head Height: 0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN; Fastener Length: 1.251 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.438 INCHES NOMINAL IN. 17 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.