Cross reference · Hi-Shear (LISI Aerospace) · Pin-rivet

HST645AP cross referenceHowmet VL645AP

HST645AP is a Hi-Shear pin-rivet series on 13 government stock numbers. Its closest equivalents are Howmet VL645AP. Each one is labeled with how strong the evidence is.

Equivalents in the government catalog

13 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

  • VL645APHowmet Fastening SystemsCatalog only, needs approvalon 11 of 13 stock numbers, 11 sizes

Plus 2 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).

Get quotes for HST645AP

Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.

Install tooling

SpecLok has no catalog family for HST645AP. Tooling for the equivalents:

None of the equivalents is in the SpecLok catalog yet.

What the government paid

DLA awards on 4 of 13 stock numbers, 8 awards from 2023-02-21 to 2025-07-08.

Latest award per stock number: $13.33 to $50.00 each.

DLA production lead time: 64 to 365 days.

Per size in the table below.

DLA prices at DLA quantities, not a quote.Source

DLA award prices at DLA quantities and terms, not a commercial quote. Each award may bundle packaging, delivery and inspection terms that a commercial buy does not. Vendors are shown by CAGE code only.

Source: DLA FOIA Electronic Reading Room ↗, public FOIA releases. Files: 2023ContHist.zip/2023ContractHistory.txt, 2024ContHist.zip/2024ContractHistory.txt, contracthist2025.zip/contracthist2025.txt, 2026-09-16-1038_contracthist.zip/2026-09-16-1038_contracthist.txt.

Sizes by maker

13 stock numbers
Part numbers DLA FLIS lists for HST645AP and its equivalents, by stock number
NSNHST645APVL645APLast DLA price
5320-01-654-9481HST645AP-6-9VL645AP-6-9
5320-01-654-9485HST645AP-6-10VL645AP-6-10$50.00 2024-07
5320-01-654-9486HST645AP-6-14VL645AP-6-14
5320-01-689-3624HST645AP-8-8VL645AP-8-8$13.33 2025-02
5320-01-655-4870HST645AP-8-9VL645AP-8-9$14.63 2025-07
5320-01-654-9488HST645AP-8-11VL645AP-8-11
5320-01-655-4877HST645AP-8-12VL645AP-8-12
5320-01-469-5393HST645AP-8-14
5320-01-469-5401HST645AP-8-16
5320-01-654-9773HST645AP-10-12VL645AP-10-12$30.00 2023-06
5320-01-697-4422HST645AP-10-15VL645AP-10-15
5320-01-654-9774HST645AP-10-16VL645AP-10-16
5320-01-654-9776HST645AP-10-17VL645AP-10-17

Each row is one National Stock Number and the part numbers DLA FLIS lists on it, as written there. A blank means FLIS lists no part in that series on the stock number, not that the size does not exist.

Sources and how to read this page.Details

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. Only equivalents marked cited have a manufacturer or government document, linked with each.

Source: DLA Federal Logistics Information System, via DLA PUB LOG ↗ (FLIS Data Electronic Reading Room ↗), data as of 2025-03-18 (March 2025 snapshot). Federal supply class 5320 Rivets. Issuer names are SpecLok's reading of the filing CAGE code; distributors are not named. Compiled 2026-10-02.

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