Cross reference · Lockheed Martin · Pin-rivet

C021 cross referenceSPS 66228V, Hi-Shear HL811, Howmet VS2972

C021 is a Lockheed pin-rivet series on 23 government stock numbers. Its closest equivalents are SPS 66228V, Hi-Shear HL811, Howmet VS2972. Each one is labeled with how strong the evidence is.

Equivalents in the government catalog

23 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

  • 66228VSPS TechnologiesCatalog only, needs approvalon 23 of 23 stock numbers, 23 sizes
  • HL811Hi-ShearCatalog only, needs approvalon 22 of 23 stock numbers, 22 sizes
  • VS2972Howmet Fastening SystemsCatalog only, needs approvalon 19 of 23 stock numbers, 19 sizes
  • VS2900Howmet Fastening SystemsCatalog only, needs approvalon 2 of 23 stock numbers, 2 sizes
3 more on one stock number each: HL11V, AICL11V, VS2932
  • HL11VHi-ShearCatalog only, needs approvalon 1 of 23 stock numbers
  • AICL11VSPS TechnologiesCatalog only, needs approvalon 1 of 23 stock numbers
  • VS2932Howmet Fastening SystemsCatalog only, needs approvalon 1 of 23 stock numbers

Airframer and OEM drawings

    1 more on one stock number each: ST3M415V
    • ST3M415VBoeingCatalog only, needs approvalon 1 of 23 stock numbers

    Get quotes for C021

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

    Install tooling

    SpecLok has no catalog family for C021. Tooling for the equivalents:

    What the government paid

    DLA awards on 1 of 23 stock numbers, 1 awards from 2025-04-17 to 2025-04-17.

    Latest award per stock number: $26.89 each.

    DLA production lead time: 89 to 239 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

    23 stock numbers
    Part numbers DLA FLIS lists for C021 and its equivalents, by stock number
    NSNC02166228VHL811VS2972Last DLA price
    5320-00-910-8489C021-6-366228V6-3HL811-6-3
    5320-00-912-5586C021-6-466228V6-4HL811-6-4VS2972-6-4
    5320-00-931-5375C021-6-566228V6-5HL811-6-5VS2972-6-5
    5320-00-912-5587C021-6-666228V6-6HL811-6-6VS2972-6-6
    5320-00-912-5588C021-6-766228V6-7HL811-6-7VS2972-6-7
    5320-00-912-5589C021-6-866228V6-8HL811-6-8VS2972-6-8
    5320-00-912-5590C021-6-966228V6-9HL811-6-9VS2972-6-9
    5320-00-959-7381C021-6-1066228V6-10HL811-6-10VS2972-6-10
    5320-00-959-7383C021-6-1166228V6-11HL811-6-11VS2972-6-11
    5320-00-959-7384C021-6-1266228V6-12HL811-6-12VS2972-6-12
    5320-00-910-8487C021-6-1466228V6-14HL811-6-14VS2972-6-14
    5320-00-912-5607C021-8-466228V8-4HL811-8-4VS2972-8-4
    5320-00-912-5610C021-8-566228V8-5HL811-8-5VS2972-8-5
    5320-00-912-5611C021-8-666228V8-6HL811-8-6VS2972-8-6
    5320-00-912-5618C021-8-766228V-8-7HL811-8-7
    Show 8 more sizes
    More sizes
    NSNC02166228VHL811VS2972Last DLA price
    5320-00-910-8745C021-8-1066228V8-10HL811-8-10VS2972-8-10
    5320-00-466-0519C021-8-1166228V8-11HL811-8-11VS2972-8-11
    5320-00-912-5568C021-8-1466228V8-14
    5320-00-492-6557C021-8-1666228V8-16HL811-8-16VS2972-8-16
    5320-00-143-5736C021-8-1966228V8-19HL811-8-19VS2972-8-19
    5320-00-443-6175C021-8-2166228V8-21HL811-8-21
    5320-00-413-0136C021-8-2566228V8-25HL811-8-25VS2972-8-25$26.89 2025-04
    5320-00-959-7445C021-10-1166228V10-11HL811-10-11VS2972-10-11

    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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