Cross reference · MS (US military standards) · Blind rivet

MS20601B4K cross referenceCherry CR156, Olympic RV251C

MS20601B4K is a blind rivet series on 3 government stock numbers. It is cross-referenced to Cherry CR156, Olympic RV251C. Each one is labeled with how strong the evidence is.

Series in the government catalog

3 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

    2 more on one stock number each: CR156, RV251C
    • CR156Cherry AerospaceCatalog only, needs approvalon 1 of 3 stock numbers
    • RV251COlympic Fastening SystemsCatalog only, needs approvalon 1 of 3 stock numbers

    Get quotes for MS20601B4K

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

    Install tooling

    SpecLok has no catalog family for MS20601B4K. Tooling for the cross-referenced series:

    None of these series is in the SpecLok catalog yet.

    Sizes by maker

    3 stock numbers
    Part numbers DLA FLIS lists for MS20601B4K and the series cross-referenced to it, by stock number
    NSNMS20601B4KCR156RV251CLast DLA price
    5320-00-814-9350MS20601B4K2
    5320-00-814-9352MS20601B4K3CR156-4-3RV251C4-3
    5320-00-811-1893MS20601B4K4

    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.

    Reference only: the controlling drawing, its process spec and the manufacturer's installation instructions govern. How to use these answers

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