Cross reference · NAS (Aerospace Industries Association) · Machine screw

NAS221 cross reference

NAS221 is a machine screw series on 45 government stock numbers. Each one is labeled with how strong the evidence is.

Equivalents in the government catalog

45 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

    1 more on one stock number each: CC221
    • CC221Textron Fastening SystemsCatalog only, needs approvalon 1 of 45 stock numbers

    Standards

      1 more on one stock number each: MS27039
      • MS27039MSCatalog only, needs approvalon 1 of 45 stock numbers

      Plus 5 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).

      Get quotes for NAS221

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

      Install tooling

      SpecLok has no catalog family for NAS221. Tooling for the equivalents:

      None of the equivalents is in the SpecLok catalog yet.

      What the government paid

      DLA awards on 6 of 45 stock numbers, 17 awards from 2023-01-04 to 2026-06-24.

      Latest award per stock number: $0.20 to $1.25 each.

      DLA production lead time: 25 to 475 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

      45 stock numbers
      Part numbers DLA FLIS lists for NAS221 and its equivalents, by stock number
      NSNNAS221Last DLA price
      5305-00-282-3554NAS221-5
      5305-00-282-4211NAS221-6
      5305-00-282-4210NAS221-7
      5305-00-282-4209NAS221-8
      5305-00-282-4208NAS221-9
      5305-00-282-4207NAS221-10$0.27 2026-06
      5305-00-165-5359NAS221-11$0.32 2023-11
      5305-01-338-1325NAS221-12$0.43 2026-05
      5305-00-282-4204NAS221-13
      5305-00-282-4202NAS221-14
      5305-00-282-4201NAS221-15
      5305-00-282-4203NAS221-16$1.25 2024-04
      5305-00-282-4200NAS221-17
      5305-00-282-4199NAS221-18
      5305-00-914-9000NAS221-18$0.20 2025-12
      Show 30 more sizes
      More sizes
      NSNNAS221Last DLA price
      5305-00-275-1564NAS221-19$0.70 2025-01
      5305-00-282-4197NAS221-20
      5305-00-515-9820NAS221-21
      5305-00-281-8561NAS221-22
      5305-00-282-4212NAS221-23
      5305-00-282-4213NAS221-24
      5305-00-281-8560NAS221-25
      5305-00-281-8559NAS221-26
      5305-00-282-6702NAS221-27
      5305-00-282-6703NAS221-28
      5305-00-282-6704NAS221-29
      5305-00-282-6705NAS221-30
      5305-00-282-6685NAS221-31
      5305-00-282-6686NAS221-32
      5305-00-282-6687NAS221-33
      5305-00-282-6688NAS221-34
      5305-00-282-6689NAS221-35
      5305-00-282-6690NAS221-37
      5305-00-271-3512NAS221-38
      5305-00-282-5098NAS221-39
      5305-00-282-5099NAS221-40
      5305-00-285-5544NAS221-41
      5305-00-282-3229NAS221-42
      5305-00-206-1193NAS221-43
      5305-00-282-3228NAS221-44
      5305-00-285-5525NAS221-45
      5305-00-282-6701NAS221-48
      5305-00-638-6582NAS221-50
      5305-00-638-1413NAS221-51
      5305-00-285-2624NAS221-62

      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 5305 Screws. Issuer names are SpecLok's reading of the filing CAGE code; distributors are not named. Compiled 2026-10-02.

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