Hi-Lok, LISI
HL19-8-10
Hi-Lok pin and collar (Hi-Shear): the collar wrenching device shears off at installation.
- Head 100° flush shear head
- Diameter 1/4" (-8)
- Grip .563-.625"
- Material Alloy steel
- Lead-time risk Low
| Family | Hi-Lok (LISI) |
|---|---|
| Head style | 100° flush shear head (source: Hi-Shear HL11 / HL19 drawing title blocks, title blocks) |
| Nominal diameter | 1/4" (-8) |
| Grip | max grip 0.625" (-10 = 10/16") |
| Material | Alloy steel |
Decoded from the published numbering scheme; not a claim that this exact dash number is a stocked SKU, and not a certified design authority. Always verify against the controlling drawing, spec, and your stress group.
Series and strength (datasheet)
HL10 / HL18 protruding shear head · HL11 / HL19 100° flush shear head · typical collars HL70, HL79, HL82, HL94, HL97
HL10: 6Al-4V titanium, 95,000 psi shear minimum; HL18: alloy steel, 95,000 psi shear (160,000-180,000 psi tensile): Hi-Shear drawings (Hi-Lok Product Specification 342).
Datasheet (PDF) ↗Other head styles, same diameter and grip
- HL10-8-10 protruding shear head
HL19 grip chart: 1/4" (-8)
Pin and collar · 5 steps
1/5Pin inserted
“Insert the pin into the prepared non-interference fit hole.”
Hi-Shear Hi-Lok and Hi-Lok/Hi-Tigue Installation Instructions, p.10, I.1 a ↗
Drawing traced from: a.
Source images (4): patent and government drawings
A patent drawing shows the patented design, which can differ in detail from today's catalog part. Each image says why it is tied to this family.
Install tooling
Decode details
| Series | Hi-Lok pin HL19 |
|---|---|
| Decode confidence | high |
| Numbering source | Hi-Shear HL10 drawing sheet 2 (Code) |
- "First dash number indicates nominal diameter in 1/32nds. Second dash number indicates maximum grip in 1/16ths." (HL10 sheet 2)
- No finish-code letters present.
- Head and material from the drawing title block.
- Collars are separate part numbers (HL10 lists typical collars HL70, HL79, HL82, HL94, HL97).
Government reference cross-reference (DLA FLIS)
Government reference cross-reference (DLA FLIS)
Reference numbers the Federal Logistics Information System records against the same National Stock Number. A supply-catalog cross-reference, not an engineering-approved interchangeability: confirm against the controlling drawing or spec before substituting.
HL19-8-10 is listed under NSN 5320-01-006-9082 PIN-RIVET
No other reference number is recorded against this NSN.
Source: DLA Federal Logistics Information System, via DLA PUB LOG ↗ (FLIS Data Electronic Reading Room ↗). FLIS data as of 2025-03-18 (March 2025 snapshot).
- Hi-Lok by LISI, pin and collar
- Datasheet (PDF) ↗
- Manufacturer page ↗
- Numbering: Hi-Shear HL10 drawing sheet 2 (Code) ↗
Lead-time risk for this family (SpecLok sourcing assessment): Low
Supply signal
Supply signalfor this part number
- 4 CAGE codes with a part number recorded on NSN 5320-01-006-9082 (FLIS, March 2025).
- Last DoD award for PIN-RIVET items (FSC 5320): 2026-06-25; 2,535 awards since 2025-10-01.
- No SpecLok quotes yet.
A signal from records SpecLok holds, not availability, stock or a lead-time promise. FLIS lists who has recorded a part number for the item, not who makes it today. DoD awards carry no NSN or part number, so award activity is for the item name's class.
Sources: DLA FLIS Data Electronic Reading Room (PUB LOG) ↗, DLA PUB LOG ↗, USAspending.gov award search API ↗; DoD award data 2025-10-01 to 2026-07-06; compiled 2026-09-28.
Image credits: LISI AEROSPACE, HI-LOK™ and HI-LITE™ Fasteners product page, gallery ↗. Product images belong to their manufacturers.
Sources
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