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

HL645YE cross referenceSPS AICL645, Boeing ST3M456C

HL645YE is a Hi-Shear pin-rivet series on 57 government stock numbers. Its closest equivalents are SPS AICL645, Boeing ST3M456C. Each one is labeled with how strong the evidence is.

Equivalents in the government catalog

57 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

  • AICL645SPS TechnologiesCatalog only, needs approvalon 54 of 57 stock numbers, 67 sizes
  • AICL644SPS TechnologiesCatalog only, needs approvalon 16 of 57 stock numbers, 16 sizes
  • HLT631YBHowmet Fastening SystemsCatalog only, needs approvalon 5 of 57 stock numbers, 6 sizes
  • HLT631YCSPS TechnologiesCatalog only, needs approvalon 4 of 57 stock numbers, 4 sizes
7 more on one stock number each: HL345YE, HL645YEAS, HL65YE, AICA645, AICL545, ATCL645, HLT311DL
  • HL345YEHuckCatalog only, needs approvalon 1 of 57 stock numbers
  • HL645YEASHowmet Fastening SystemsCatalog only, needs approvalon 1 of 57 stock numbers
  • HL65YEHuckCatalog only, needs approvalon 1 of 57 stock numbers
  • AICA645SPS TechnologiesCatalog only, needs approvalon 1 of 57 stock numbers
  • AICL545SPS TechnologiesCatalog only, needs approvalon 1 of 57 stock numbers
  • ATCL645SPS TechnologiesCatalog only, needs approvalon 1 of 57 stock numbers
  • HLT311DLHuckCatalog only, needs approvalon 1 of 57 stock numbers

Airframer and OEM drawings

  • ST3M456CBoeingCatalog only, needs approvalon 56 of 57 stock numbers, 56 sizes
  • ST3M758DBoeingCatalog only, needs approvalon 6 of 57 stock numbers, 6 sizes
  • HP4758DBoeingCatalog only, needs approvalon 5 of 57 stock numbers, 5 sizes
4 more on one stock number each: AICL771, HLT631TB, ST3M, ST3M465C
  • AICL771BoeingCatalog only, needs approvalon 1 of 57 stock numbers
  • HLT631TBBoeingCatalog only, needs approvalon 1 of 57 stock numbers
  • ST3MBoeingCatalog only, needs approvalon 1 of 57 stock numbers
  • ST3M465CBoeingCatalog only, needs approvalon 1 of 57 stock numbers, 2 sizes

Plus 12 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).

Get quotes for HL645YE

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

Install tooling

Hi-Lok tooling (hex key (holds the pin) and collar driver (howmet hi-lok system))

Hi-Lok in the catalog

What the government paid

DLA awards on 4 of 57 stock numbers, 4 awards from 2023-10-16 to 2026-05-28.

Latest award per stock number: $4.55 to $16.95 each.

DLA production lead time: 64 to 326 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

57 stock numbers
Part numbers DLA FLIS lists for HL645YE and its equivalents, by stock number
NSNHL645YEAICL645ST3M456CLast DLA price
5320-01-022-3860HL645YE-6-2AIC-L-645-6-2ST3M456C3-2
5320-00-325-2850HL645YE-6-3AIC-L-645-6-3ST3M456C3-3$4.64 2026-05
5320-00-325-2840HL645YE-6-4AIC-L-645-6-4ST3M456C3-4
5320-00-180-2989HL645YE-6-5AIC-L-645-6-5ST3M456C3-5
5320-00-325-2851HL645YE-6-6AIC-L-645-6-6ST3M456C3-6
5320-00-323-6131HL645YE-6-7AIC-L-645-6-7ST3M456C3-7$4.55 2023-10
5320-00-365-0173HL645YE-6-8AIC-L-645-3-8ST3M456C3-8
5320-00-321-3324HL645YE-6-9ST3M456C3-9
5320-00-365-0171HL645YE-6-10AIC-L-645-6-10ST3M456C3-10
5320-00-326-5560HL645YE-6-11AIC-L-645-6-11ST3M456C3-11
5320-01-190-7627HL645YE-6-12AIC-L-645-6-12ST3M456C3-12
5320-01-219-3018HL645YE-6-13AIC-L-645-6-13ST3M456C3-13
5320-00-365-0172HL645YE-6-15AIC-L-645-6-15ST3M456C3-15
5320-01-007-1670HL645YE-6-16AIC-L-645-3-16ST3M456C3-16
5320-00-326-5559HL645YE-7-10AIC-L-645-8-10ST3M456C4-10
Show 42 more sizes
More sizes
NSNHL645YEAICL645ST3M456CLast DLA price
5320-00-367-6743HL645YE-8-3AIC-L-645-4-3ST3M456C4-3
5320-00-323-6167HL645YE-8-4AIC-L-645-4-4ST3M456C4-4
5320-00-288-3257HL645YE-8-5AIC-L-645-8-5ST3M456C4-5
5320-00-325-2831HL645YE-8-6AIC-L-645-8-6ST3M456C4-6
5320-00-144-3424HL645YE-8-7AIC-L-645-8-7ST3M456C4-7$9.11 2025-03
5320-00-101-5674HL645YE-8-8AIC-L-645-8-8ST3M456C4-8
5320-00-325-2832HL645YE-8-9AIC-L-645-4-9ST3M456C4-9
5320-00-367-6738HL645YE-8-11AIC-L-645-4-11ST3M456C4-11
5320-00-291-5402HL645YE-8-12AIC-L-645-8-12ST3M456C4-12
5320-00-367-6739HL645YE-8-13AIC-L-645-4-13ST3M456C4-13
5320-00-367-6740HL645YE-8-14AIC-L-645-4-14
5320-00-367-6886HL645YE-8-15AIC-L-645-4-15ST3M456C4-15$16.95 2024-12
5320-01-102-2760HL645YE-8-16AIC-L-645-4-16ST3M456C4-16
5320-01-296-2084HL645YE-8-18AIC-L-645-8-18ST3M456C4-18
5320-00-369-3288HL645YE-10-3AIC-L-645-10-3ST3M456C5-3
5320-00-367-6882HL645YE-10-4AIC-L-645-10-4ST3M456C5-4
5320-00-367-6883HL645YE-10-5AIC-L-645-10-5ST3M456C5-5
5320-00-365-0177HL645YE-10-6AIC-L-645-10-6ST3M456C5-6
5320-00-367-6884HL645YE-10-7AIC-L-645-10-7ST3M456C5-7
5320-00-101-5671HL645YE-10-8AIC-L-645-10-8ST3M456C5-8
5320-00-367-6885HL645YE-10-9AIC-L-645-10-9ST3M456C5-9
5320-00-101-5560HL645YE-10-10AIC-L-645-10-10ST3M456C5-10
5320-00-101-5566HL645YE-10-11AIC-L-645-10-11ST3M456C5-11
5320-00-101-5668HL645YE-10-12ST3M456C5-12
5320-00-367-6881HL645YE-10-13AIC-L-645-10-13ST3M456C5-13
5320-00-369-3284HL645YE-10-14AIC-L-645-10-14ST3M456C5-14
5320-00-377-1300HL645YE-10-15AIC-L-645-10-15ST3M456C5-15
5320-00-377-1301HL645YE-10-16AIC-L-645-10-16ST3M456C5-16
5320-00-377-1302HL645YE-10-17AIC-L-645-10-17ST3M456C5-17
5320-00-377-1312HL645YE-10-19AIC-L-645-10-19ST3M456C5-19
5320-01-253-9067HL645YE-12-5AIC-L-645-12-5ST3M456C6-5
5320-00-288-3258HL645YE-12-6AIC-L-645-12-6ST3M456C6-6
5320-00-390-0738HL645YE-12-7AIC-L-645-12-7ST3M456C6-7
5320-00-500-3821HL645YE-12-8AIC-L-645-12-8ST3M456C6-8
5320-01-032-8618HL645YE-12-9AIC-L-645-12-9ST3M456C6-9
5320-01-135-4186HL645YE-12-10AIC-L-645-12-10ST3M456C6-10
5320-00-369-3369HL645YE-12-11AIC-L-645-12-11ST3M456C6-11
5320-00-369-3373HL645YE-12-12AIC-L-645-12-12ST3M456C6-12
5320-00-377-1315HL645YE-12-13AIC-L-645-12-13ST3M456C6-13
5320-00-377-1316HL645YE-12-15ST3M456C6-15
5320-00-393-4082HL645YE-12-17AIC-L-645-12-17ST3M456C6-17
5320-00-373-0964HL645YE-12-19AIC-L-645-12-19ST3M456C6-19

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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