Cross reference · Hartwell · Quick release pin
LG4CT cross referenceSpace-Lok SLC4AT, MS17985C
LG4CT is a Hartwell quick release pin series on 27 government stock numbers. Its closest equivalents are Space-Lok SLC4AT, MS17985C. Each one is labeled with how strong the evidence is.
- Issued by Hartwell
- Item Quick release pin
- Stock numbers 27
- Equivalents 25
- DLA paid $8.91 to $27.31
Equivalents in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
- SLC4ATSpace-LokCatalog only, needs approvalon 25 of 27 stock numbers, 25 sizes
- SLS4ATSpace-LokCatalog only, needs approvalon 7 of 27 stock numbers, 7 sizes
10 more on one stock number each: BL4TA06S, BLC4TA03S, BLC4TA03SM, BLC4TA05S, BLC4TA07S, BLC4TA07SM, BLC4TA08S, BLC4TA08SM, BLC4TA09S, BLC4TA09SM
- BL4TA06SAvibankCatalog only, needs approvalon 1 of 27 stock numbers
- BLC4TA03SAvibankCatalog only, needs approvalon 1 of 27 stock numbers
- BLC4TA03SMAvibankCatalog only, needs approvalon 1 of 27 stock numbers
- BLC4TA05SAvibankCatalog only, needs approvalon 1 of 27 stock numbers
- BLC4TA07SAvibankCatalog only, needs approvalon 1 of 27 stock numbers
- BLC4TA07SMAvibankCatalog only, needs approvalon 1 of 27 stock numbers
- BLC4TA08SAvibankCatalog only, needs approvalon 1 of 27 stock numbers
- BLC4TA08SMAvibankCatalog only, needs approvalon 1 of 27 stock numbers
- BLC4TA09SAvibankCatalog only, needs approvalon 1 of 27 stock numbers
- BLC4TA09SMAvibankCatalog only, needs approvalon 1 of 27 stock numbers
Standards
- MS17985CMSCatalog only, needs approvalon 26 of 27 stock numbers, 26 sizes
- MS17985MSCatalog only, needs approvalon 13 of 27 stock numbers, 13 sizes
9 more on one stock number each: NAS1334A2C17D, NAS1334A2C18D, NAS1334A2C21D, NAS1334A2C27F, NAS1334A2C33D, NAS1334A2S30D, NAS1334C2C11D, NASM17985, MS17985C438A
- NAS1334A2C17DNASCatalog only, needs approvalon 1 of 27 stock numbers
- NAS1334A2C18DNASCatalog only, needs approvalon 1 of 27 stock numbers
- NAS1334A2C21DNASCatalog only, needs approvalon 1 of 27 stock numbers
- NAS1334A2C27FNASCatalog only, needs approvalon 1 of 27 stock numbers
- NAS1334A2C33DNASCatalog only, needs approvalon 1 of 27 stock numbers
- NAS1334A2S30DNASCatalog only, needs approvalon 1 of 27 stock numbers
- NAS1334C2C11DNASCatalog only, needs approvalon 1 of 27 stock numbers
- NASM17985NASCatalog only, needs approvalon 1 of 27 stock numbers
- MS17985C438AMSCatalog only, needs approvalon 1 of 27 stock numbers
Airframer and OEM drawings
2 more on one stock number each: C1398C2C09D, GP510EV
- C1398C2C09DLockheed MartinCatalog only, needs approvalon 1 of 27 stock numbers
- GP510EVNorthrop GrummanCatalog only, needs approvalon 1 of 27 stock numbers
Plus 43 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).
Get quotes for LG4CT
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
SpecLok has no catalog family for LG4CT. Tooling for the equivalents:
None of the equivalents is in the SpecLok catalog yet.
What the government paid
DLA awards on 15 of 27 stock numbers, 208 awards from 2023-03-16 to 2026-08-12.
Latest award per stock number: $8.91 to $27.31 each.
DLA production lead time: 93 to 221 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 | LG4CT | SLC4AT | MS17985C | Last DLA price |
|---|---|---|---|---|
| 5315-00-702-4910 | LG4CT0300 | SLC4AT03 | MS17985C403 | |
| 5315-00-929-4128 | LG4CT0405 | SLC4AT05 | MS17985C405 | |
| 5315-00-964-0242 | LG4CT0421 | SLC4AT21 | MS17985C421 | |
| 5315-00-719-9385 | LG4CT0433 | SLC4AT33 | MS17985C433 | $27.31 2025-02 |
| 5315-00-223-0367 | LG4CT0438 | |||
| 5315-01-158-9938 | LG4CT0600 | SLC4AT06 | MS17985C406 | |
| 5315-00-702-4893 | LG4CT0700 | SLC4AT07 | MS17985C407 | $12.60 2023-03 |
| 5315-00-880-1420 | LG4CT0800 | SLC4AT08 | MS17985C408 | $24.91 2024-06 |
| 5315-00-717-3976 | LG4CT0900 | SLC4AT09 | MS17985C409 | |
| 5315-00-702-4913 | LG4CT1000 | SLC4AT10 | MS17985C410 | |
| 5315-00-702-4892 | LG4CT1100 | SLC4AT11 | MS17985C411 | $14.25 2024-03 |
| 5315-00-702-4915 | LG4CT1300 | SLC4AT13 | MS17985C413 | $8.91 2026-05 |
| 5315-00-143-0073 | LG4CT1400 | SLC4AT14 | MS17985C414 | |
| 5315-00-702-4898 | LG4CT1500 | SLC4AT15 | MS17985C415 | $15.80 2026-08 |
| 5315-01-138-8006 | LG4CT1600 | SLC4AT16 | MS17985C416 |
Show 12 more sizes
| NSN | LG4CT | SLC4AT | MS17985C | Last DLA price |
|---|---|---|---|---|
| 5315-00-244-2900 | LG4CT1700 | SLC4AT17 | MS17985C417 | $10.78 2025-03 |
| 5315-00-880-7756 | LG4CT1800 | SLC4AT18 | MS17985C418 | $16.49 2026-06 |
| 5315-00-216-5836 | LG4CT2000 | SLC4AT20 | MS17985C420 | $18.84 2026-05 |
| 5315-00-577-5507 | LG4CT2200 | SLC4AT22 | MS17985C422 | $15.29 2023-12 |
| 5315-01-133-0466 | LG4CT2300 | MS17985C423 | $19.29 2024-09 | |
| 5315-01-070-4299 | LG4CT2400 | SLC4AT24 | MS17985C424 | |
| 5315-01-134-3335 | LG4CT2500 | SLC4AT25 | MS17985C425 | $19.33 2026-05 |
| 5315-00-170-1724 | LG4CT2600 | SLC4AT26 | MS17985C426 | $24.32 2023-05 |
| 5315-00-528-4802 | LG4CT2700 | SLC4AT27 | MS17985C427 | |
| 5315-00-465-6664 | LG4CT2800 | SLC4AT28 | MS17985C428 | $25.82 2023-07 |
| 5315-00-702-4905 | LG4CT3000 | SLC4AT30 | MS17985C430 | $17.97 2025-11 |
| 5315-01-158-9939 | LG4CT4100 | SLC4AT41 | MS17985C441 |
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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