The Bolt,machine, cataloged under National Stock Number 5306-01-513-2528, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 15 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-513-2528 |
| Primary Part Number | CP221-10D11C21 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Head Height | 0.378 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN |
| Fastener Length | 2.625 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-C-13924, CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 1.500 INCHES NOMINAL IN |
| Material Document and Classification | ASTMA354, GRADE BD ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.922 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN |
| Color | BLACK OVERALL |
| Surface Treatment | OXIDE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 11 |
| Material | STEEL UNS K04100 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 |
|---|---|
| CP221-10D11C21 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| S9515-AL-MMA-010, 7-5 ITEM 8 | Naval Sea Systems Command (USA) |
NSN 5306-01-513-2528 is a Bolt,machine, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-513-2528 has 2 manufacturer part numbers on file: CP221-10D11C21 (Hamilton Sundstrand Corporation Dba Collins Aerospace), S9515-AL-MMA-010, 7-5 ITEM 8 (Naval Sea Systems Command).
Key specifications for CP221-10D11C21: Head Height: 0.378 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN; Fastener Length: 2.625 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-13924, CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 1.500 INCHES NOMINAL 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.