The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-652-1227, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-652-1227 |
| Primary Part Number | NA0045-050004 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Head Height | 2.70 MILLIMETERS MINIMUM AND 3.00 MILLIMETERS MAXIMUM MM |
| Fastener Length | 12.70 MILLIMETERS MINIMUM AND 13.30 MILLIMETERS MAXIMUM MM |
| Surface Treatment Document and Classification | AMS2700, METHOD 1, CLASS 4 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Pitch in Millimeters | 0.8 |
| Thread Length | 9.0 MILLIMETERS NOMINAL MM |
| Nominal Thread Diameter | 5.0 MILLIMETERS MM |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 3.80 MILLIMETERS MINIMUM AND 4.20 MILLIMETERS MAXIMUM MM |
| Width Between Flats | 2.85 MILLIMETERS MINIMUM AND 8.00 MILLIMETERS MAXIMUM MM |
| Grip Diameter | 4.965 MILLIMETERS MINIMUM AND 4.990 MILLIMETERS MAXIMUM MM |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | MJ |
| 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 |
|---|---|
| NA0045-050004 PRIMARY | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| NA0045-050004 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-652-1227 is a Bolt,close Tolerance, manufactured by Lockheed Martin Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-652-1227 has 1 manufacturer part number on file: NA0045-050004 (Lockheed Martin Corporation).
Key specifications for NA0045-050004: Head Height: 2.70 MILLIMETERS MINIMUM AND 3.00 MILLIMETERS MAXIMUM MM; Fastener Length: 12.70 MILLIMETERS MINIMUM AND 13.30 MILLIMETERS MAXIMUM MM; Surface Treatment Document and Classification: AMS2700, METHOD 1, CLASS 4 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Pitch in Millimeters: 0.8. 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.