Cross reference · Hartwell · Quick release pin
LG4ST cross referenceSpace-Lok SLS4AT, MS17985
LG4ST is a Hartwell quick release pin series on 21 government stock numbers. Its closest equivalents are Space-Lok SLS4AT, MS17985. Each one is labeled with how strong the evidence is.
- Issued by Hartwell
- Item Quick release pin
- Stock numbers 21
- Equivalents 19
- DLA paid $10.78 to $24.32
Equivalents in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
- SLS4ATSpace-LokCatalog only, needs approvalon 20 of 21 stock numbers, 20 sizes
- SLC4ATSpace-LokCatalog only, needs approvalon 7 of 21 stock numbers, 7 sizes
10 more on one stock number each: BL4TA06S, BLC4TA15S, BLC4TA15SM, BLC4TA17S, BLC4TA17SM, BLC4TA24S, BLC4TA24SM, BLC4TA26S, BLC4TA30S, BLC4TA30SM
- BL4TA06SAvibankCatalog only, needs approvalon 1 of 21 stock numbers
- BLC4TA15SAvibankCatalog only, needs approvalon 1 of 21 stock numbers
- BLC4TA15SMAvibankCatalog only, needs approvalon 1 of 21 stock numbers
- BLC4TA17SAvibankCatalog only, needs approvalon 1 of 21 stock numbers
- BLC4TA17SMAvibankCatalog only, needs approvalon 1 of 21 stock numbers
- BLC4TA24SAvibankCatalog only, needs approvalon 1 of 21 stock numbers
- BLC4TA24SMAvibankCatalog only, needs approvalon 1 of 21 stock numbers
- BLC4TA26SAvibankCatalog only, needs approvalon 1 of 21 stock numbers
- BLC4TA30SAvibankCatalog only, needs approvalon 1 of 21 stock numbers
- BLC4TA30SMAvibankCatalog only, needs approvalon 1 of 21 stock numbers
Standards
- MS17985MSCatalog only, needs approvalon 20 of 21 stock numbers, 20 sizes
- MS17985CMSCatalog only, needs approvalon 8 of 21 stock numbers, 8 sizes
5 more on one stock number each: NAS1334A2C17D, NAS1334A2S, NAS1334A2S30D, MS17987, 1334A2S04D
- NAS1334A2C17DNASCatalog only, needs approvalon 1 of 21 stock numbers
- NAS1334A2SNASCatalog only, needs approvalon 1 of 21 stock numbers
- NAS1334A2S30DNASCatalog only, needs approvalon 1 of 21 stock numbers
- MS17987MSCatalog only, needs approvalon 1 of 21 stock numbers
- 1334A2S04DNASCatalog only, needs approvalon 1 of 21 stock numbers
Plus 40 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).
Get quotes for LG4ST
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
SpecLok has no catalog family for LG4ST. Tooling for the equivalents:
None of the equivalents is in the SpecLok catalog yet.
What the government paid
DLA awards on 5 of 21 stock numbers, 163 awards from 2023-04-12 to 2026-08-12.
Latest award per stock number: $10.78 to $24.32 each.
DLA production lead time: 97 to 312 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 | LG4ST | SLS4AT | MS17985 | Last DLA price |
|---|---|---|---|---|
| 5315-00-702-1149 | LG4ST0404 | SLS4AT04 | MS17985-404 | |
| 5315-01-158-9938 | LG4ST0406 | SLS4AT06 | ||
| 5315-00-985-6709 | LG4ST0407 | SLS4AT07 | MS17985-407 | |
| 5315-00-702-1140 | LG4ST0408 | SLS4AT08 | MS17985-408 | |
| 5315-00-978-6192 | LG4ST0409 | SLS4AT09 | MS17985-409 | |
| 5315-00-702-1133 | LG4ST0412 | SLS4AT12 | MS17985-412 | |
| 5315-00-052-2241 | LG4ST0414 | SLS4AT14 | MS17985-414 | |
| 5315-00-702-4898 | LG4ST0415 | SLS4AT15 | MS17985-415 | $15.80 2026-08 |
| 5315-00-244-2900 | LG4ST1700 | SLS4AT17 | MS17985-417 | $10.78 2025-03 |
| 5315-00-053-8087 | LG4ST1800 | MS17985-418 | ||
| 5315-00-702-1131 | LG4ST1900 | SLS4AT19 | MS17985-419 | |
| 5315-00-702-1099 | LG4ST2100 | SLS4AT21 | MS17985-421 | |
| 5315-01-070-4299 | LG4ST2400 | SLS4AT24 | MS17985-424 | |
| 5315-01-134-3335 | LG4ST2500 | SLS4AT25 | MS17985-425 | $19.33 2026-05 |
| 5315-00-170-1724 | LG4ST2600 | SLS4AT26 | MS17985-426 | $24.32 2023-05 |
Show 6 more sizes
| NSN | LG4ST | SLS4AT | MS17985 | Last DLA price |
|---|---|---|---|---|
| 5315-00-702-1120 | LG4ST2800 | SLS4AT28 | MS17985-428 | |
| 5315-00-702-4905 | LG4ST3000 | SLS4AT30 | MS17985-430 | $17.97 2025-11 |
| 5315-00-052-2244 | LG4ST3100 | SLS4AT31 | MS17985-431 | |
| 5315-00-938-4072 | LG4ST3200 | SLS4AT32 | MS17985-432 | |
| 5315-00-519-7382 | LG4ST3600 | SLS4AT36 | MS17985-436 | |
| 5315-00-905-9214 | LG4ST4000 | SLS4AT40 | MS17985-440 |
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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