Cross reference · US Army · Screw thread insert
SMD503309 cross referenceHowmet 209C, NASM21209, RTX 364MS008P, GE 691C650P
SMD503309 is a US Army screw thread insert series on 4 government stock numbers. Its closest equivalents are Howmet 209C, NASM21209, RTX 364MS008P, GE 691C650P. Each one is labeled with how strong the evidence is.
- Issued by US Army
- Item Screw thread insert
- Stock numbers 4
- Equivalents 21
- DLA paid $0.11 to $0.24
Equivalents in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
- 209CHowmet Fastening SystemsCatalog only, needs approvalon 3 of 4 stock numbers, 3 sizes
1 more on one stock number each: TLF3C
- TLF3CHowmet Fastening SystemsCatalog only, needs approvalon 1 of 4 stock numbers
Standards
- NASM21209NASCatalog only, needs approvalon 4 of 4 stock numbers
- MS21209CMSCatalog only, needs approvalon 3 of 4 stock numbers, 4 sizes
- NAS1222NASCatalog only, needs approvalon 3 of 4 stock numbers, 3 sizes
5 more on one stock number each: MS21209F, NAS1130, MS2109F, MS21209, MS21209FH
- MS21209FMSCatalog only, needs approvalon 1 of 4 stock numbers, 2 sizes
- NAS1130NASCatalog only, needs approvalon 1 of 4 stock numbers
- MS2109FMSCatalog only, needs approvalon 1 of 4 stock numbers
- MS21209MSCatalog only, needs approvalon 1 of 4 stock numbers
- MS21209FHMSCatalog only, needs approvalon 1 of 4 stock numbers
Airframer and OEM drawings
- 364MS008PRTXCatalog only, needs approvalon 3 of 4 stock numbers, 3 sizes
- 691C650PGECatalog only, needs approvalon 2 of 4 stock numbers, 2 sizes
9 more on one stock number each: 364MR008P, 364MR8P, 364MT008P, 60A5A, CSN10170531AAB, L294947, L318000225, NT9618, Z00N7394070000TBM
- 364MR008PRTXCatalog only, needs approvalon 1 of 4 stock numbers
- 364MR8PRTXCatalog only, needs approvalon 1 of 4 stock numbers
- 364MT008PRTXCatalog only, needs approvalon 1 of 4 stock numbers
- 60A5AUS NavyCatalog only, needs approvalon 1 of 4 stock numbers
- CSN10170531AABLockheed MartinCatalog only, needs approvalon 1 of 4 stock numbers
- L294947RTXCatalog only, needs approvalon 1 of 4 stock numbers
- L318000225Lockheed MartinCatalog only, needs approvalon 1 of 4 stock numbers
- NT9618Northrop GrummanCatalog only, needs approvalon 1 of 4 stock numbers
- Z00N7394070000TBMDaherCatalog only, needs approvalon 1 of 4 stock numbers
Plus 72 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).
Get quotes for SMD503309
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
SpecLok has no catalog family for SMD503309. Tooling for the equivalents:
- Threaded inserts (key-locked MS51830 / Keenserts, helical coil MS21209) tooling for MS21209C, MS21209F
What the government paid
DLA awards on 3 of 4 stock numbers, 17 awards from 2023-08-28 to 2026-08-20.
Latest award per stock number: $0.11 to $0.24 each.
DLA production lead time: 85 to 240 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
| NSN | SMD503309 | 209C | NASM21209 | MS21209C | 364MS008P | 691C650P | Last DLA price |
|---|---|---|---|---|---|---|---|
| 5325-00-800-7874 | SMD503309-1 | NASM21209 | 364MS008P017 | $0.11 2026-08 | |||
| 5325-00-815-4929 | SMD503309-2 | 209C08-0246 | NASM21209 | MS21209C08-15 | 364MS008P003 | 691C650P5 | |
| 5325-00-631-7894 | SMD503309-3 | 209C04-0168 | NASM21209 | MS21209C0415 | 364MS008P029 | $0.24 2026-08 | |
| 5325-00-827-4024 | SMD503309-4 | 209C04-0224 | NASM21209 | MS21209C0420 | 691C650P2 | $0.16 2024-03 |
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 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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