The Bolt,ribbed Shoulder, cataloged under National Stock Number 5306-01-552-5341, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-552-5341 |
| Primary Part Number | 91488A242 |
| Item Name | Bolt,ribbed Shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Head Height | 0.094 INCHES NOMINAL IN |
| Fastener Length | 1.094 INCHES NOMINAL IN |
| Thread Length | 1.000 INCHES NOMINAL IN |
| Shoulder Shape | RIBBED ALL SHOULDERS |
| Supplementary Features | HEAD STLE C49; NOMIAL THREAD DIA 0.25 INCH; HARDNESS RATING B80-B100 IN |
| Features Provided | NUT |
| Thread Direction | RIGHT-HAND |
| Color | BLACK OVERALL |
| Surface Treatment | OXIDE ZINC OVERALL |
| Minimum Tensile Strength | 74 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Rib Quantity | 6 |
| Head Diameter | 0.719 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 |
|---|---|
| 91488A242 PRIMARY | Mcmaster-Carr Supply Co (USA) |
NSN 5306-01-552-5341 is a Bolt,ribbed Shoulder, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-552-5341 has 1 manufacturer part number on file: 91488A242 (Mcmaster-Carr Supply Co).
Key specifications for 91488A242: Head Height: 0.094 INCHES NOMINAL IN; Fastener Length: 1.094 INCHES NOMINAL IN; Thread Length: 1.000 INCHES NOMINAL IN; Shoulder Shape: RIBBED ALL SHOULDERS. 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.