Cross reference · Hartwell · Quick release pin

LH12S cross referenceAvibank BLS12L33N, Space-Lok DLS12L33N, MS17989

LH12S is a Hartwell quick release pin series on 3 government stock numbers. Its closest equivalents are Avibank BLS12L33N, Space-Lok DLS12L33N, MS17989. Each one is labeled with how strong the evidence is.

Equivalents in the government catalog

3 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

    6 more on one stock number each: BLS12L33N, BLS12L37N, BLS12R35N, DLS12L33N, DLS12L37N, DLS12R35N
    • BLS12L33NAvibankCatalog only, needs approvalon 1 of 3 stock numbers
    • BLS12L37NAvibankCatalog only, needs approvalon 1 of 3 stock numbers
    • BLS12R35NAvibankCatalog only, needs approvalon 1 of 3 stock numbers
    • DLS12L33NSpace-LokCatalog only, needs approvalon 1 of 3 stock numbers
    • DLS12L37NSpace-LokCatalog only, needs approvalon 1 of 3 stock numbers
    • DLS12R35NSpace-LokCatalog only, needs approvalon 1 of 3 stock numbers

    Standards

    • MS17989MSCatalog only, needs approvalon 2 of 3 stock numbers, 2 sizes
    2 more on one stock number each: NAS1332TYIIST, MS17990
    • NAS1332TYIISTNASCatalog only, needs approvalon 1 of 3 stock numbers
    • MS17990MSCatalog only, needs approvalon 1 of 3 stock numbers

    Plus 3 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).

    Get quotes for LH12S

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

    Install tooling

    SpecLok has no catalog family for LH12S. Tooling for the equivalents:

    None of the equivalents is in the SpecLok catalog yet.

    Sizes by maker

    3 stock numbers
    Part numbers DLA FLIS lists for LH12S and its equivalents, by stock number
    NSNLH12SBLS12L33NDLS12L33NMS17989NAS1332TYIISTLast DLA price
    5315-00-916-6574LH12S-L-33MBLS12L33NDLS12L33NMS17989-1233NAS1332TYIIST3
    5315-00-928-4579LH12S-L-37MMS17989-1237
    5315-01-286-1810LH12S-R35M

    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 5315 Nails, machine keys and pins. Issuer names are SpecLok's reading of the filing CAGE code; distributors are not named. Compiled 2026-10-02.

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