Cross reference · Boeing · Pin-rivet
ST3M420C cross referenceHi-Shear HL48, SPS AICL48, Lockheed ST25D
ST3M420C is a Boeing pin-rivet series on 22 government stock numbers. It is cross-referenced to Hi-Shear HL48, SPS AICL48, Lockheed ST25D. Each one is labeled with how strong the evidence is.
- Issued by Boeing
- Item Pin-rivet
- Stock numbers 22
- Cross-referenced series 9
- DLA paid $2.42 to $32.50
Series in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
- HL48Hi-ShearCatalog only, needs approvalon 22 of 22 stock numbers, 22 sizes
- AICL48SPS TechnologiesCatalog only, needs approvalon 22 of 22 stock numbers, 22 sizes
1 more on one stock number each: HL448
- HL448Hi-ShearCatalog only, needs approvalon 1 of 22 stock numbers
Airframer and OEM drawings
- ST25DLockheed MartinCatalog only, needs approvalon 19 of 22 stock numbers, 19 sizes
- 642ASUS NavyCatalog only, needs approvalon 2 of 22 stock numbers, 2 sizes
4 more on one stock number each: GB511FK, ST259, ST25D5D, ST5D
- GB511FKNorthrop GrummanCatalog only, needs approvalon 1 of 22 stock numbers
- ST259Lockheed MartinCatalog only, needs approvalon 1 of 22 stock numbers
- ST25D5DLockheed MartinCatalog only, needs approvalon 1 of 22 stock numbers
- ST5DLockheed MartinCatalog only, needs approvalon 1 of 22 stock numbers
Plus 5 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).
Get quotes for ST3M420C
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
SpecLok has no catalog family for ST3M420C. Tooling for the cross-referenced series:
- Hi-Lok tooling for HL48, HL448
What the government paid
DLA awards on 4 of 22 stock numbers, 6 awards from 2023-08-30 to 2026-05-18.
Latest award per stock number: $2.42 to $32.50 each.
DLA production lead time: 50 to 137 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 | ST3M420C | HL48 | AICL48 | ST25D | Last DLA price |
|---|---|---|---|---|---|
| 5320-01-241-2821 | ST3M420C3-2 | HL48-6-2 | AIC-L-48-6-2 | ST25D59-6-2 | $32.50 2026-05 |
| 5320-00-658-3842 | ST3M420C3-3 | HL48-6-3 | AIC-L-48-6-3 | ST25D59-6-3 | |
| 5320-00-291-5404 | ST3M420C3-5 | HL48-6-5 | AICL48-6-5 | ST25D39-6-5 | $2.56 2023-08 |
| 5320-01-012-7428 | ST3M420C3-6 | HL48-6-6 | AIC-L-48-6-6 | ||
| 5320-01-094-7412 | ST3M420C3-7 | HL48-6-7 | AIC-L-48-6-7 | ST25D59-6-7 | |
| 5320-01-094-8092 | ST3M420C3-8 | HL48-6-8 | AIC-L-48-6-8 | ST25D59-6-8 | |
| 5320-01-094-8093 | ST3M420C3-9 | HL48-6-9 | AIC-L-48-6-9 | ST25D59-6-9 | |
| 5320-01-094-2234 | ST3M420C3-10 | HL48-6-10 | AIC-L-48-6-10 | ||
| 5320-01-121-0422 | ST3M420C3-11 | HL48-6-11 | AIC-L-48-6-11 | ST25D59-6-11 | |
| 5320-00-288-3331 | ST3M420C4-4 | HL48-8-4 | AIC-L48-8-4 | ST25D59-8-4 | |
| 5320-00-288-3323 | ST3M420C4-5 | HL48-8-5 | AIC-L48-8-5 | ST25D59-8-5 | $2.42 2025-12 |
| 5320-00-369-3275 | ST3M420C4-6 | HL48-8-6 | AIC-L-48-8-6 | ST25D59-8-6 | |
| 5320-00-393-4081 | ST3M420C4-7 | HL48-8-7 | AIC-L-48-8-7 | ST25D59-8-7 | |
| 5320-01-094-7413 | ST3M420C4-8 | HL48-8-8 | AIC-L-48-8-8 | ST25D59-8-8 | |
| 5320-01-094-7414 | ST3M420C4-9 | HL48-8-9 | AIC-L-48-8-9 | ST25D59-8-9 | $20.00 2026-02 |
Show 7 more sizes
| NSN | ST3M420C | HL48 | AICL48 | ST25D | Last DLA price |
|---|---|---|---|---|---|
| 5320-01-094-8094 | ST3M420C4-10 | HL48-8-10 | AIC-L-48-8-10 | ST25D59-8-9 | |
| 5320-01-094-8095 | ST3M420C4-11 | HL48-8-11 | AIC-L-48-8-11 | ST25D59-8-11 | |
| 5320-00-304-9577 | ST3M420C5-6 | HL48-10-6 | AIC-L48-10-6 | ST25D59-10-6 | |
| 5320-01-066-9440 | ST3M420C5-7 | HL48-10-7 | AIC-L-48-10-7 | ST25D59-10-7 | |
| 5320-01-013-7228 | ST3M420C08-2 | HL48-5-2 | AIC-L-48-5-2 | ST25D59-5-2 | |
| 5320-00-288-3352 | ST3M420C08-3 | HL48-5-3 | AIC-L48-5-3 | ||
| 5320-00-288-3349 | ST3M420C08-5 | HL48-5-5 | AIC-L48-5-5 | ST25D59-5-5 |
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 5320 Rivets. Issuer names are SpecLok's reading of the filing CAGE code; distributors are not named. Compiled 2026-10-02.
Reference only: the controlling drawing, its process spec and the manufacturer's installation instructions govern. How to use these answers
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