Cross reference · ESNA · Plate self-locking nut

70ZA cross referenceNAS1025C

70ZA is a ESNA plate self-locking nut series on 7 government stock numbers. Its closest equivalents are NAS1025C. Each one is labeled with how strong the evidence is.

Equivalents in the government catalog

7 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

    3 more on one stock number each: K1901, T12C, T3988
    • K1901Howmet Fastening SystemsCatalog only, needs approvalon 1 of 7 stock numbers
    • T12CCherry AerospaceCatalog only, needs approvalon 1 of 7 stock numbers
    • T3988Cherry AerospaceCatalog only, needs approvalon 1 of 7 stock numbers

    Standards

    • NAS1025CNASCatalog only, needs approvalon 2 of 7 stock numbers, 2 sizes
    • NAS1027CNASCatalog only, needs approvalon 2 of 7 stock numbers, 2 sizes
    4 more on one stock number each: NAS1023C, NAS1029C, MS21056, AN362C
    • NAS1023CNASCatalog only, needs approvalon 1 of 7 stock numbers
    • NAS1029CNASCatalog only, needs approvalon 1 of 7 stock numbers
    • MS21056MSCatalog only, needs approvalon 1 of 7 stock numbers
    • AN362CANCatalog only, needs approvalon 1 of 7 stock numbers

    Plus 1 reference number whose issuer SpecLok does not identify (distributors and catalog agencies are not named).

    Get quotes for 70ZA

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

    Install tooling

    SpecLok has no catalog family for 70ZA. Tooling for the equivalents:

    None of the equivalents is in the SpecLok catalog yet.

    What the government paid

    DLA awards on 2 of 7 stock numbers, 2 awards from 2025-11-13 to 2026-04-30.

    Latest award per stock number: $2.00 to $92.81 each.

    DLA production lead time: 140 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

    7 stock numbers
    Part numbers DLA FLIS lists for 70ZA and its equivalents, by stock number
    NSN70ZAK1901T12CNAS1025CMS21056AN362CLast DLA price
    5310-00-655-587870ZA1-02
    5310-00-281-919070ZA1-82AN362C832
    5310-00-820-037670ZA5-054
    5310-00-822-178970ZA5-064MS21056-6
    5310-00-720-764270ZA17-048NAS1025C4$2.00 2025-11
    5310-00-889-253170ZA17-054T12C524NAS1025C5
    5310-01-014-121870ZA797-048K1901-31-4$92.81 2026-04

    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 5310 Nuts and washers. Issuer names are SpecLok's reading of the filing CAGE code; distributors are not named. Compiled 2026-10-02.

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