The Bolt,machine, cataloged under National Stock Number 5306-01-626-8885, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5306-01-626-8885 |
| Primary Part Number | 161-7066768-18 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Fastener Length | 5.690 INCHES NOMINAL IN |
| Thread Length | 2.500 INCHES NOMINAL IN |
| Material Document and Classification | QQ-M-286, FORM 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 1.750 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Locking Feature | PELLET BEARING SURFACE OF HEAD |
| Countersink Angle | 45.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 5 |
| Material | NICKEL ALLOY K-500 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 2.000 INCHES NOMINAL IN |
| 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 |
|---|---|
| 161-7066768-18 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| H541-0703-18 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-626-8885 is a Bolt,machine, manufactured by Naval Sea Systems Command, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-626-8885 has 1 manufacturer part number on file: 161-7066768-18 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 5306-01-641-2524. Verify interchangeability with system specifications before substitution.
Key specifications for 161-7066768-18: Fastener Length: 5.690 INCHES NOMINAL IN; Thread Length: 2.500 INCHES NOMINAL IN; Material Document and Classification: QQ-M-286, FORM 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 1.750 INCHES IN. 13 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.