Cross reference · Hi-Shear (LISI Aerospace) · Blind rivet

BL5121 cross referenceMonogram PLT5121, NAS1752

BL5121 is a Hi-Shear blind rivet series on 17 government stock numbers. Its closest equivalents are Monogram PLT5121, NAS1752. Each one is labeled with how strong the evidence is.

Equivalents in the government catalog

17 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

  • PLT5121MonogramCatalog only, needs approvalon 17 of 17 stock numbers, 17 sizes
1 more on one stock number each: PLT121
  • PLT121Howmet Fastening SystemsCatalog only, needs approvalon 1 of 17 stock numbers

Standards

  • NAS1752NASCatalog only, needs approvalon 17 of 17 stock numbers, 20 sizes
1 more on one stock number each: NAS175
  • NAS175NASCatalog only, needs approvalon 1 of 17 stock numbers

Get quotes for BL5121

Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.

Install tooling

SpecLok has no catalog family for BL5121. Tooling for the equivalents:

What the government paid

DLA awards on 5 of 17 stock numbers, 11 awards from 2023-06-27 to 2026-05-13.

Latest award per stock number: $12.22 to $222.00 each.

DLA production lead time: 30 to 159 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

17 stock numbers
Part numbers DLA FLIS lists for BL5121 and its equivalents, by stock number
NSNBL5121PLT5121NAS1752Last DLA price
5320-01-291-0182BL5121-5-2PLT5121-5-2NAS1752-08DL2
5320-01-291-0189BL5121-5-3PLT5121-5-3NAS1752-08DL3$67.00 2024-12
5320-01-291-0198BL5121-5-4PLT5121-5-4NAS1752-08DL4
5320-01-291-0181BL5121-5-5PLT5121-5-5NAS1752-08DL5$20.00 2023-11
5320-01-291-0197BL5121-6-3PLT5121-6-3NAS1752-3DL3
5320-01-291-0186BL5121-6-4PLT5121-6-4NAS1752-3DL4$12.22 2026-05
5320-01-291-0185BL5121-6-5PLT5121-6-5NAS1752-3DL5
5320-01-291-2261BL5121-6-6PLT5121-6-6NAS1752-3DL6
5320-01-306-9803BL5121-6-12PLT5121-6-12NAS1752-3DL12
5320-01-304-0666BL5121-8-2PLT5121-8-2NAS1752-4DL2
5320-01-305-0606BL5121-8-5PLT5121-8-5NAS1752-4DL5
5320-01-305-0607BL5121-8-8PLT5121-8-8NAS1752-4DL8$222.00 2024-12
5320-01-305-4128BL5121-8-12PLT5121-8-12NAS1752-4DL12
5320-01-305-4127BL5121-8-15PLT5121-8-15NAS1752-4DL15
5320-01-305-4126BL5121-10-7PLT5121-10-7NAS1752-5DL7
Show 2 more sizes
More sizes
NSNBL5121PLT5121NAS1752Last DLA price
5320-01-305-4125BL5121-10-12PLT5121-10-12NAS1752-5DL12
5320-01-291-0183BL5121-8-6-PLT5121-8-6NAS1752-4DL6$16.59 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 5320 Rivets. Issuer names are SpecLok's reading of the filing CAGE code; distributors are not named. Compiled 2026-10-02.

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