The Bolt,shear, cataloged under National Stock Number 5306-01-471-8581, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-471-8581 |
| Primary Part Number | 20-089-8D24 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok |
| Status | ACTIVE |
| Head Height | 0.050 INCHES NOMINAL IN |
| Fastener Length | 2.618 INCHES NOMINAL IN |
| Thread Length | 0.516 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | SPLINE DRIVE SHEAR HEAD |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.003 INCHES NOMINAL IN |
| Head Minor Diameter | 0.772 INCHES MINIMUM IN |
| Grip Diameter | 0.498 INCHES MINIMUM AND 0.499 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 30900 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | NICKEL ALLOY 718 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| 20-089-8D24 PRIMARY | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| 20-089-8D24 PRIMARY | Houston Precision Fasteners I Lp (USA) |
| 20-089-8D24 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 20-089-8D24 | M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA) |
| 20-089-8D24 PRIMARY | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| 20-089-8D24 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 20-089-8D24 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 20-089-8D24 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 20-089-8D24 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| Reference | Meaning |
|---|---|
| 20-089-8D24 | 1/2 Source control — Government-approved source U.S. Government activity |
| 20-089-8024 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-471-8581 is a Bolt,shear, manufactured by Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-471-8581 has 9 manufacturer part numbers on file: 20-089-8D24 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), 20-089-8D24 (Houston Precision Fasteners I Lp), 20-089-8D24 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), 20-089-8D24 (M.s. Aerospace Inc. Dba Ms Aerospace Inc), 20-089-8D24 (Howmet Global Fastening Systems Inc Div City of Industry Operations) and 4 more.
Key specifications for 20-089-8D24: Head Height: 0.050 INCHES NOMINAL IN; Fastener Length: 2.618 INCHES NOMINAL IN; Thread Length: 0.516 INCHES NOMINAL IN; Nominal Thread Diameter: 0.500 INCHES IN. 14 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.