The Bolt,eye, cataloged under National Stock Number 5306-01-645-1755, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Monroe Engineering Llc Dba Monroe Pmp. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5306-01-645-1755 |
| Primary Part Number | BL-250-S |
| Item Name | Bolt,eye |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Monroe Engineering Llc Dba Monroe Pmp |
| Status | ACTIVE |
| Thread Length | 0.750 INCHES NOMINAL IN |
| Shank Length | 1.190 INCHES NOMINAL IN |
| Style Designator | ROUND, CLOSED |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Distance From Center of Eye to Shank End | 1.500 INCHES NOMINAL IN |
| Shoulder Thickness | 0.310 INCHES NOMINAL IN |
| Eye Inside Diameter | 0.250 INCHES NOMINAL IN |
| Eye Stock Thickness | 0.310 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 20 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Eye Outside Width | 0.500 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 |
|---|---|
| BL-250-S PRIMARY | Monroe Engineering Llc Dba Monroe Pmp (USA) |
| Reference | Meaning |
|---|---|
| BL-250 | 5/9 Secondary reference Monroe Engineering Llc Dba Monroe Pmp |
NSN 5306-01-645-1755 is a Bolt,eye, manufactured by Monroe Engineering Llc Dba Monroe Pmp, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-645-1755 has 1 manufacturer part number on file: BL-250-S (Monroe Engineering Llc Dba Monroe Pmp).
1 possible match (shared part number, not a government interchangeability claim): 5120-01-662-9159. Verify interchangeability with system specifications before substitution.
Key specifications for BL-250-S: Thread Length: 0.750 INCHES NOMINAL IN; Shank Length: 1.190 INCHES NOMINAL IN; Style Designator: ROUND, CLOSED; Nominal Thread Diameter: 0.250 INCHES IN. 12 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.