Cross reference · MS (US military standards) · Screw thread insert

MS21209C cross referenceNASM21209

MS21209C is a screw thread insert series on 113 government stock numbers. Its closest equivalents are NASM21209. Each one is labeled with how strong the evidence is.

Equivalents in the government catalog

113 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

  • 209CHowmet Fastening SystemsCatalog only, needs approvalon 24 of 113 stock numbers, 24 sizes
3 more on one stock number each: TLC5C, TLC6C, TLC8C
  • TLC5CHowmet Fastening SystemsCatalog only, needs approvalon 1 of 113 stock numbers
  • TLC6CHowmet Fastening SystemsCatalog only, needs approvalon 1 of 113 stock numbers
  • TLC8CHowmet Fastening SystemsCatalog only, needs approvalon 1 of 113 stock numbers

Standards

  • NASM21209NASCatalog only, needs approvalon 109 of 113 stock numbers, 4 sizes
  • NASM21209CNASCatalog only, needs approvalon 11 of 113 stock numbers, 11 sizes
  • NAS1222NASCatalog only, needs approvalon 3 of 113 stock numbers, 3 sizes
3 more on one stock number each: NAS1130, NASM3926, Z4318135
  • NAS1130NASCatalog only, needs approvalon 1 of 113 stock numbers
  • NASM3926NASCatalog only, needs approvalon 1 of 113 stock numbers
  • Z4318135Naval ordnance standardsCatalog only, needs approvalon 1 of 113 stock numbers

Airframer and OEM drawings

  • 364MS008PRTXCatalog only, needs approvalon 4 of 113 stock numbers, 4 sizes
  • 364MR8PRTXCatalog only, needs approvalon 3 of 113 stock numbers, 3 sizes
  • 691C650PGECatalog only, needs approvalon 3 of 113 stock numbers, 3 sizes
  • SMD503309US ArmyCatalog only, needs approvalon 3 of 113 stock numbers, 3 sizes
  • 331C114HNorthrop GrummanCatalog only, needs approvalon 2 of 113 stock numbers, 2 sizes
  • 364MR008PRTXCatalog only, needs approvalon 2 of 113 stock numbers, 2 sizes
  • 364MT008PRTXCatalog only, needs approvalon 2 of 113 stock numbers, 2 sizes
5 more on one stock number each: 1NL621R5N, 2JC2406H, 7004990P01B, 7004990P2CN, 7714903P
  • 1NL621R5NBAE SystemsCatalog only, needs approvalon 1 of 113 stock numbers
  • 2JC2406HNorthrop GrummanCatalog only, needs approvalon 1 of 113 stock numbers
  • 7004990P01BGECatalog only, needs approvalon 1 of 113 stock numbers
  • 7004990P2CNGECatalog only, needs approvalon 1 of 113 stock numbers
  • 7714903PGECatalog only, needs approvalon 1 of 113 stock numbers

Plus 148 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).

Get quotes for MS21209C

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

Install tooling

Threaded inserts (key-locked MS51830 / Keenserts, helical coil MS21209) tooling (key-locked: standard drill, countersink and tap, then the keensert installation tool drives the keys. helical coil: sti tap, inserting tool, tang break-off tool)

Threaded inserts (key-locked MS51830 / Keenserts, helical coil MS21209) in the catalog

What the government paid

DLA awards on 31 of 113 stock numbers, 65 awards from 2023-01-06 to 2026-08-20.

Latest award per stock number: $0.10 to $33.97 each.

DLA production lead time: 13 to 284 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

113 stock numbers
Part numbers DLA FLIS lists for MS21209C and its equivalents, by stock number
NSNMS21209C209CNASM21209Last DLA price
5325-00-589-5335MS21209C1-10NASM21209
5325-00-680-3762MS21209C1-15209C1-0285NASM21209
5325-00-990-8643MS21209C1-20209C1-0380NASM21209$0.17 2024-12
5325-01-004-9794MS21209C1-25NASM21209$0.94 2024-11
5325-01-132-3855MS21209C1-30NASM21209
5325-01-186-1843MS21209C2-10NASM21209
5325-00-863-8113MS21209C2-20NASM21209
5325-01-217-9548MS21209C2-30NASM21209$7.00 2023-07
5325-00-999-1181MS21209C4-10209C410NASM21209$0.22 2025-06
5325-00-754-0847MS21209C4-15209C4-0375NASM21209$0.12 2024-06
5325-00-721-8352MS21209C4-20NASM21209$0.13 2023-02
5325-01-057-1226MS21209C4-25NASM21209$0.59 2024-05
5325-01-013-8609MS21209C4-30NASM21209
5325-01-486-9508MS21209C5-10NASM21209-C5-10$0.20 2023-05
5325-00-803-5574MS21209C5-15209C5-0469NASM21209$0.23 2023-12
Show 45 more sizes
More sizes
NSNMS21209C209CNASM21209Last DLA price
5325-00-825-6938MS21209C5-20209C5-0625NASM21209$0.19 2023-11
5325-01-423-3108MS21209C5-25NASM21209$0.75 2024-07
5325-01-263-6252MS21209C5-30NASM21209
5325-00-210-3935MS21209C6-10NASM21209
5325-01-486-9507MS21209C6-10NASM21209-C6-10
5325-00-754-1976MS21209C6-15209C6-0562NASM21209
5325-00-812-1894MS21209C6-20209C6-0750NASM21209$0.44 2025-10
5325-01-145-4065MS21209C6-25NASM21209
5325-01-048-6353MS21209C6-30NASM21209$0.76 2024-02
5325-01-076-5513MS21209C7-10NASM21209$3.00 2026-01
5325-00-701-3811MS21209C7-15209C7-0656NASM21209
5325-00-723-6775MS21209C7-20209C7-0875NASM21209
5325-01-115-2906MS21209C7-25NASM21209$1.40 2023-09
5325-01-381-8917MS21209C08-6
5325-01-486-9498MS21209C8-10NASM21209-C8-10
5325-00-815-4929MS21209C08-15209C08-0246NASM21209
5325-00-812-1900MS21209C8-20209C8-1000NASM21209$0.55 2023-09
5325-01-114-5474MS21209C8-25NASM21209
5325-00-079-9570MS21209C08-30NASM21209
5325-01-139-1079MS21209C8-30NASM21209$1.18 2023-01
5325-00-026-2017MS21209C9-10NASM21209
5325-00-723-6776MS21209C9-15209C9-0844NASM21209
5325-00-855-7892MS21209C0210NASM21209
5325-00-215-0248MS21209C0215NASM21209
5325-00-462-4226MS21209C0220NASM21209
5325-00-716-6615MS21209C0225NASM21209
5325-01-044-3522MS21209C0230NASM21209
5325-01-400-5813MS21209C0310NASM21209
5325-00-886-6312MS21209C0315NASM21209
5325-01-021-1751MS21209C0320NASM21209
5325-00-263-8728MS21209C0410NASM21209$0.10 2023-04
5325-00-631-7894MS21209C0415209C04-0168NASM21209$0.24 2026-08
5325-00-827-4024MS21209C0420209C04-0224NASM21209$0.16 2024-03
5325-00-631-7889MS21209C0425NASM21209
5325-00-721-7849MS21209C0430
5325-01-081-5694MS21209C0510NASM21209
5325-01-092-1901MS21209C0515NASM21209
5325-01-317-1613MS21209C0520NASM21209$0.89 2026-08
5325-00-245-5195MS21209C0610NASM21209$0.17 2025-10
5325-00-815-4930MS21209C0615209C06-0207NASM21209$0.16 2026-06
5325-00-558-8826MS21209C0620209C06-0276NASM21209
5325-00-213-8727MS21209C0625NASM21209
5325-00-008-7100MS21209C0630NASM21209
5325-00-721-6936MS21209C0820209C08-0328NASM21209
5325-00-215-0249MS21209C0825NASM21209

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. 53 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 5325 Fastening devices. Issuer names are SpecLok's reading of the filing CAGE code; distributors are not named. Compiled 2026-10-02.

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