The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-281-8384, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-281-8384 |
| Primary Part Number | HR240-8D18A |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| 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 |
|---|---|
| PBF1417-8D18A | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 03A174-8D18A | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| SLB146-8D18A | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| HR240-8D18A PRIMARY | Hi-Shear Corporation (USA) |
| SC3102-8D18A | Howmet Global Fastening Systems Inc (USA) |
| AIC1652-8D18A | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| T009-8D18A | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| 123743-8D18A | 5/2 Secondary reference U.S. Government activity |
| T009-8D18A | 5/9 Secondary reference U.S. Government activity |
| SC3102-8D18A | 5/9 Secondary reference Sps Technologies Inc |
NSN 5306-01-281-8384 is a Bolt,close Tolerance, manufactured by Hi-Shear Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-281-8384 has 6 manufacturer part numbers on file: PBF1417-8D18A (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), 03A174-8D18A (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems), SLB146-8D18A (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), HR240-8D18A (Hi-Shear Corporation), SC3102-8D18A (Howmet Global Fastening Systems Inc) and 1 more.
Key specifications for HR240-8D18A: End Item Identification: PACER SPECIAL. 0 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.