Aerospace fastener cross reference
Type a part number from Boeing, Airbus, NAS, MS, AN, Cherry, Huck or Allfast. You get every equivalent with how strong the evidence is, the install tooling, and a quote.
Common lookups
3,236 series have their own page. Browse by who issues the number:
Airframer and OEM numbers
Boeing 420 pages
Northrop Grumman 94 pages
US Navy 53 pages
Lockheed Martin 48 pages
RTX 24 pages
GE 17 pages
Airbus 15 pages
BAE Systems 6 pages
Collins Aerospace 3 pages
Honeywell 3 pages
US Army 2 pages
Daher 1 page
Manufacturer numbers
Howmet Fastening Systems 293 pages
Hi-Shear (LISI Aerospace) 213 pages
SPS Technologies 202 pages
Cherry Aerospace 156 pages
Huck (Howmet) 110 pages
Monogram (TriMas) 102 pages
Hartwell 96 pages
ESNA 84 pages
Allfast 77 pages
Space-Lok 71 pages
Olympic Fastening Systems 22 pages
Fastener Innovation Technology 11 pages
LISI Aerospace 11 pages
Textron Fastening Systems 7 pages
Aerospace Rivet Manufacturers 6 pages
Stanley Engineered Fastening 2 pages
Long-Lok 1 page
Rotor Clip 1 page
Government and industry standards
NAS (Aerospace Industries Association) 576 pages
MS (US military standards) 360 pages
AN (Air Force-Navy Aeronautical) 57 pages
MIL specifications 21 pages
Federal specifications (GSA) 12 pages
ANSI 3 pages
SAE International 1 page
Equivalents marked cited have a document; the rest are government catalog listings.Details
Identical and approved-alternate equivalents come from manufacturer and government documents, each linked on the page. Everything else comes from the DLA Federal Logistics Information System (FLIS): part numbers the government catalog records on the same National Stock Number. That is a supply-catalog cross-reference, not an engineering approval: confirm against the controlling drawing or spec before substituting.
Source: DLA FLIS Data Electronic Reading Room (PUB LOG) ↗, data as of 2025-03-18 (March 2025 snapshot). Issuer names are SpecLok's reading of the filing CAGE code; distributors are not named. Compiled 2026-10-02.
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