Cross reference · NAS (Aerospace Industries Association) · Blind rivet

NAS1921M cross referenceHuck MLS100

NAS1921M is a blind rivet series on 90 government stock numbers. Its closest equivalents are Huck MLS100. Each one is labeled with how strong the evidence is.

Equivalents in the government catalog

90 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

  • MLS100HuckCatalog only, needs approvalon 33 of 90 stock numbers, 33 sizes
  • MLS100MHuckCatalog only, needs approvalon 22 of 90 stock numbers, 22 sizes
  • OSMLS100HuckCatalog only, needs approvalon 2 of 90 stock numbers, 2 sizes
  • OSMLS100MHuckCatalog only, needs approvalon 2 of 90 stock numbers, 2 sizes
2 more on one stock number each: SMLS100, SMLS100M
  • SMLS100HuckCatalog only, needs approvalon 1 of 90 stock numbers
  • SMLS100MHuckCatalog only, needs approvalon 1 of 90 stock numbers

Standards

    1 more on one stock number each: QQN281
    • QQN281Federal specificationsCatalog only, needs approvalon 1 of 90 stock numbers

    Airframer and OEM drawings

    • GR501CNorthrop GrummanCatalog only, needs approvalon 10 of 90 stock numbers, 10 sizes

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

    Get quotes for NAS1921M

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

    Install tooling

    Cherry 1900 bulbing blind rivet tooling (single action tooling (ca-1035): -04, -05: g704b tool with h747-456 pulling head; -04, -05, -06: g83/g84 tool with h1900-456 pulling head ("additional tip needed for non-washer version"))

    Cherry 1900 bulbing blind rivet in the catalog

    What the government paid

    DLA awards on 22 of 90 stock numbers, 154 awards from 2023-01-18 to 2026-08-27.

    Latest award per stock number: $1.75 to $193.69 each.

    DLA production lead time: 33 to 811 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

    90 stock numbers
    Part numbers DLA FLIS lists for NAS1921M and its equivalents, by stock number
    NSNNAS1921MMLS100GR501CLast DLA price
    5320-00-959-4197NAS1921M04-02MLS100-M04-02GR501C4-2
    5320-01-438-8303NAS1921M04-03MLS100-M04-03$8.51 2026-07
    5320-00-929-5194NAS1921M04-04MLS100-M04-04
    5320-01-685-2877NAS1921M04-05
    5320-01-042-4483NAS1921M04-06
    5320-01-628-3358NAS1921M04-07$3.88 2026-08
    5320-01-497-0951NAS1921M05-02
    5320-01-423-2521NAS1921M05-03MLS100-M05-03$1.75 2023-05
    5320-00-929-5195NAS1921M05-04MLS100-M05-04
    5320-01-423-2518NAS1921M05-05MLS100-M05-05
    5320-01-468-9749NAS1921M05-06MLS100-M05-06
    5320-00-410-3117NAS1921M05-07MLS100-M05-07
    5320-01-042-4481NAS1921M05-08MLS100-M05-08
    5320-01-256-9762NAS1921M05-09
    5320-01-470-0633NAS1921M06-03
    Show 45 more sizes
    More sizes
    NSNNAS1921MMLS100GR501CLast DLA price
    5320-00-252-8945NAS1921M06-04MLS100-M06-04GR501C6-4
    5320-01-469-2399NAS1921M06-05MLS100-M06-05
    5320-01-407-9043NAS1921M06-06MLS100-M06-06
    5320-01-027-6490NAS1921M06-07
    5320-01-093-0324NAS1921M06-08MLS100-M06-08
    5320-01-469-7215NAS1921M06-09
    5320-01-437-3268NAS1921M06-12
    5320-01-092-9969NAS1921M08-04MLS100-M08-04
    5320-01-137-3976NAS1921M04-01W
    5320-01-065-5962NAS1921M04-02PW
    5320-01-004-6438NAS1921M04-02WMLS100-M04-02C$2.85 2026-06
    5320-01-415-8223NAS1921M04-03C
    5320-01-059-7124NAS1921M04-03PW
    5320-00-937-2115NAS1921M04-03WMLS100-M04-03C$3.01 2026-02
    5320-01-684-9269NAS1921M04-04P
    5320-00-937-4984NAS1921M04-04WMLS100-M04-04CGR501C4-4C$4.98 2025-10
    5320-01-684-9275NAS1921M04-05P
    5320-00-761-5993NAS1921M04-05WMLS100-M04-05CGR501C4-5C
    5320-01-684-9280NAS1921M04-06P
    5320-00-385-8734NAS1921M04-07WMLS100-M04-07C
    5320-01-648-6436NAS1921M04-S01
    5320-01-099-4222NAS1921M04-S03$2.00 2025-11
    5320-01-187-9082NAS1921M05-01PW
    5320-01-423-2991NAS1921M05-01W
    5320-01-107-3644NAS1921M05-02PW
    5320-00-080-0570NAS1921M05-02WMLS100-M05-02C
    5320-01-063-9927NAS1921M05-03PW
    5320-00-853-4974NAS1921M05-03WMLS100-M05-03C$6.00 2026-04
    5320-01-063-9926NAS1921M05-04PW
    5320-00-837-3496NAS1921M05-04WMLS100-M05-04CGR501C5-4C
    5320-01-068-2342NAS1921M05-05PW
    5320-00-837-3495NAS1921M05-05WMLS100-M05-05C$9.23 2026-05
    5320-01-064-2419NAS1921M05-06PW
    5320-00-143-6276NAS1921M05-06WMLS100-M05-06CGR501C5-6C$2.26 2025-11
    5320-01-068-1338NAS1921M05-07PW
    5320-01-108-1162NAS1921M05-07WMLS100-M05-07C
    5320-01-059-7125NAS1921M05-08PW
    5320-01-111-1348NAS1921M05-08W$12.89 2026-08
    5320-01-183-7966NAS1921M05-09W$43.96 2024-03
    5320-01-059-3456NAS1921M05-10PW$19.10 2025-08
    5320-01-057-8221NAS1921M06-03PW
    5320-00-839-2121NAS1921M06-03WMLS100-M06-03C
    5320-01-058-0819NAS1921M06-04PW
    5320-00-837-3494NAS1921M06-04WMLS100-M06-04CGR501C6-4C
    5320-01-068-2341NAS1921M06-05PW

    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. 30 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 class 5320 Rivets. Issuer names are SpecLok's reading of the filing CAGE code; distributors are not named. Compiled 2026-10-02.

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