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

NAS1221 cross reference

NAS1221 is a machine screw series on 226 government stock numbers. Each one is labeled with how strong the evidence is.

Equivalents in the government catalog

226 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

    7 more on one stock number each: BM19024, HS2623, HT195, HT260LB, HT8100, MAS1221, T150
    • BM19024HuckCatalog only, needs approvalon 1 of 226 stock numbers
    • HS2623HuckCatalog only, needs approvalon 1 of 226 stock numbers
    • HT195Hi-ShearCatalog only, needs approvalon 1 of 226 stock numbers
    • HT260LBHi-ShearCatalog only, needs approvalon 1 of 226 stock numbers
    • HT8100Howmet Fastening SystemsCatalog only, needs approvalon 1 of 226 stock numbers
    • MAS1221Fastener Innovation TechnologyCatalog only, needs approvalon 1 of 226 stock numbers
    • T150HuckCatalog only, needs approvalon 1 of 226 stock numbers

    Airframer and OEM drawings

      1 more on one stock number each: GB510F
      • GB510FNorthrop GrummanCatalog only, needs approvalon 1 of 226 stock numbers

      Plus 10 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).

      Get quotes for NAS1221

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

      Install tooling

      SpecLok has no catalog family for NAS1221. Tooling for the equivalents:

      None of the equivalents is in the SpecLok catalog yet.

      What the government paid

      DLA awards on 22 of 226 stock numbers, 46 awards from 2023-01-13 to 2026-09-01.

      Latest award per stock number: $1.86 to $150.00 each.

      DLA production lead time: 8 to 450 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

      226 stock numbers
      Part numbers DLA FLIS lists for NAS1221 and its equivalents, by stock number
      NSNNAS1221Last DLA price
      5305-00-541-9045NAS1221-3-2
      5305-00-021-4078NAS1221-3-3
      5305-00-458-1912NAS1221-3-5
      5305-00-782-1267NAS1221-3-6
      5305-01-224-1438NAS1221-3-7
      5305-01-497-9727NAS1221-3-8
      5305-00-825-3392NAS1221-3-9
      5305-01-020-9549NAS1221-3-13
      5305-01-183-5839NAS1221-3-14
      5305-01-126-8161NAS1221-3-17
      5305-00-468-3677NAS1221-3-25
      5305-00-253-8123NAS1221-04-3
      5305-01-106-7503NAS1221-4-3$7.02 2024-09
      5305-01-193-2362NAS1221-04-4$150.00 2023-12
      5305-01-093-4345NAS1221-04-5
      Show 45 more sizes
      More sizes
      NSNNAS1221Last DLA price
      5305-01-121-8469NAS1221-4-5
      5305-01-296-7804NAS1221-4-6
      5305-01-014-1174NAS1221-4-7
      5305-01-177-9701NAS1221-04-8
      5305-01-018-7233NAS1221-4-8
      5305-01-025-6778NAS1221-4-11
      5305-00-059-9564NAS1221-4-12
      5305-00-059-9567NAS1221-4-13
      5305-01-204-4697NAS1221-4-14
      5305-00-839-2606NAS1221-4-15$4.36 2023-02
      5305-01-221-5797NAS1221-4-16
      5305-01-277-4978NAS1221-4-18
      5305-01-254-9168NAS1221-04-26
      5305-01-019-2384NAS1221-4-26
      5305-01-279-2330NAS1221-4-28
      5305-01-019-2385NAS1221-4-36
      5305-01-019-2387NAS1221-4-42
      5305-01-144-0975NAS1221-5-7
      5305-01-280-6703NAS1221-5-15
      5305-01-311-2619NAS1221-5-28
      5305-01-020-6889NAS1221-06-2
      5305-00-903-1502NAS1221-06-3
      5305-01-233-2926NAS1221-06-4
      5305-01-118-3130NAS1221-06-6
      5305-01-467-8137NAS1221-06-7
      5305-01-482-7714NAS1221-06-8$5.45 2023-02
      5305-01-340-6338NAS1221-06-11
      5305-00-113-6205NAS1221-6-12
      5305-01-312-2594NAS1221-6-13
      5305-01-353-0694NAS1221-6-14
      5305-00-610-5770NAS1221-06-15
      5305-01-136-4479NAS1221-6-15
      5305-01-135-1132NAS1221-06-16
      5305-01-312-2593NAS1221-6-16
      5305-01-145-5443NAS1221-06-17
      5305-01-143-9684NAS1221-6-19
      5305-01-354-1915NAS1221-6-20
      5305-01-151-4125NAS1221-6-22
      5305-00-821-6005NAS1221-06-24$14.39 2025-11
      5305-01-204-5468NAS1221-06-40
      5305-00-916-9519NAS1221-08-3$3.12 2024-10
      5305-01-063-1731NAS1221-08-4
      5305-00-486-2136NAS1221-08-6
      5305-01-204-6833NAS1221-08-8$11.98 2024-09
      5305-01-091-2714NAS1221-08-9$28.47 2025-01

      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. 166 more stock numbers are not shown.

      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 classes 5305 Screws, 5306 Bolts. Issuer names are SpecLok's reading of the filing CAGE code; distributors are not named. Compiled 2026-10-02.

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