Cross reference · Avibank · Quick release pin
BLS4LA cross referenceHartwell LG4CL, Space-Lok SLC4AL, MS17986, Northrop 7490A24H
BLS4LA is a Avibank quick release pin series on 3 government stock numbers. Its closest equivalents are Hartwell LG4CL, Space-Lok SLC4AL, MS17986, Northrop 7490A24H. Each one is labeled with how strong the evidence is.
- Issued by Avibank
- Item Quick release pin
- Stock numbers 3
- Equivalents 17
- DLA paid $11.57 to $13.75
Equivalents in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
- LG4CLHartwellCatalog only, needs approvalon 2 of 3 stock numbers, 2 sizes
- LG4SLHartwellCatalog only, needs approvalon 2 of 3 stock numbers, 2 sizes
- SLC4ALSpace-LokCatalog only, needs approvalon 2 of 3 stock numbers, 2 sizes
- SLS4ALSpace-LokCatalog only, needs approvalon 2 of 3 stock numbers, 2 sizes
4 more on one stock number each: LG4CB, LG4CB30M, LG4SL11M, LG4SL15M
- LG4CBHartwellCatalog only, needs approvalon 1 of 3 stock numbers
- LG4CB30MHartwellCatalog only, needs approvalon 1 of 3 stock numbers
- LG4SL11MHartwellCatalog only, needs approvalon 1 of 3 stock numbers
- LG4SL15MHartwellCatalog only, needs approvalon 1 of 3 stock numbers
Standards
- MS17986MSCatalog only, needs approvalon 2 of 3 stock numbers, 2 sizes
- MS17986CMSCatalog only, needs approvalon 2 of 3 stock numbers, 2 sizes
6 more on one stock number each: NAS1334A5C, NAS1334A5C11D, NAS1334C5C, NAS1334C5C11D, MS17984, MS17984C
- NAS1334A5CNASCatalog only, needs approvalon 1 of 3 stock numbers
- NAS1334A5C11DNASCatalog only, needs approvalon 1 of 3 stock numbers
- NAS1334C5CNASCatalog only, needs approvalon 1 of 3 stock numbers
- NAS1334C5C11DNASCatalog only, needs approvalon 1 of 3 stock numbers
- MS17984MSCatalog only, needs approvalon 1 of 3 stock numbers
- MS17984CMSCatalog only, needs approvalon 1 of 3 stock numbers
Airframer and OEM drawings
1 more on one stock number each: 7490A24H
- 7490A24HNorthrop GrummanCatalog only, needs approvalon 1 of 3 stock numbers
Plus 12 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).
Get quotes for BLS4LA
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
SpecLok has no catalog family for BLS4LA. Tooling for the equivalents:
None of the equivalents is in the SpecLok catalog yet.
What the government paid
DLA awards on 2 of 3 stock numbers, 5 awards from 2023-11-03 to 2025-04-20.
Latest award per stock number: $11.57 to $13.75 each.
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 | BLS4LA | LG4CL | SLC4AL | MS17986 | NAS1334A5C | 7490A24H | Last DLA price |
|---|---|---|---|---|---|---|---|
| 5315-00-965-6702 | BLS4LA1-100S | LG4CL1100 | SLC4AL11 | MS17986-411 | $13.75 2024-02 | ||
| 5315-00-230-1832 | BLS4LA1-300S | ||||||
| 5315-00-369-0077 | BLS4LA1-5S | LG4CL1500 | SLC4AL15 | MS17986-415 | NAS1334A5C15 | 7490A24H02-15C | $11.57 2025-04 |
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 5315 Nails, machine keys and pins. Issuer names are SpecLok's reading of the filing CAGE code; distributors are not named. Compiled 2026-10-02.
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