The Bolt,machine, cataloged under National Stock Number 5306-01-083-1595, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Perkins Engines Company Ltd - Perkins Parts Distribution Centre Uk. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-083-1595 |
| Primary Part Number | ST52649 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Perkins Engines Company Ltd - Perkins Parts Distribution Centre Uk |
| Status | ACTIVE |
| Head Height | 0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN |
| Fastener Length | 1.690 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-P-16232 TY Z CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 1.125 INCHES MINIMUM IN |
| Material Document and Classification | SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Head Style | DISTORTED HEAD |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Locking Feature | DISTORTIONS BEARING SURFACE OF HEAD |
| Surface Treatment | PHOSPHATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 14 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| ST52649 | Perkins Engines Company Ltd - Perkins Parts Distribution Centre Uk (GBR) |
| Reference | Meaning |
|---|---|
| MS35764-252 | 2/2 Government specification standardization U.S. Government activity |
NSN 5306-01-083-1595 is a Bolt,machine, manufactured by Perkins Engines Company Ltd - Perkins Parts Distribution Centre Uk, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-083-1595 has 1 manufacturer part number on file: ST52649 (Perkins Engines Company Ltd - Perkins Parts Distribution Centre Uk).
Key specifications for ST52649: Head Height: 0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN; Fastener Length: 1.690 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-P-16232 TY Z CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 1.125 INCHES MINIMUM 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.