Cross reference · Howmet Fastening Systems · Close tolerance screw
HT8099 cross referenceHi-Shear HT193LB, Huck BM21009, NAS1578V, Northrop GB511J
HT8099 is a Howmet close tolerance screw series on 3 government stock numbers. It is cross-referenced to Hi-Shear HT193LB, Huck BM21009, NAS1578V, Northrop GB511J. Each one is labeled with how strong the evidence is.
- Issued by Howmet Fastening Systems
- Item Close tolerance screw
- Stock numbers 3
- Cross-referenced series 7
Series in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
- HT193LBHi-ShearCatalog only, needs approvalon 3 of 3 stock numbers, 3 sizes
- BM21009HuckCatalog only, needs approvalon 2 of 3 stock numbers, 2 sizes
- T151HuckCatalog only, needs approvalon 2 of 3 stock numbers, 2 sizes
Standards
3 more on one stock number each: NAS1578V, NAS1578V3T, NAS1578V4H
- NAS1578VNASCatalog only, needs approvalon 1 of 3 stock numbers
- NAS1578V3TNASCatalog only, needs approvalon 1 of 3 stock numbers
- NAS1578V4HNASCatalog only, needs approvalon 1 of 3 stock numbers
Airframer and OEM drawings
- GB511JNorthrop GrummanCatalog only, needs approvalon 3 of 3 stock numbers, 3 sizes
Plus 1 reference number whose issuer SpecLok does not identify (distributors and catalog agencies are not named).
Get quotes for HT8099
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
SpecLok has no catalog family for HT8099. Tooling for the cross-referenced series:
None of these series is in the SpecLok catalog yet.
Sizes by maker
| NSN | HT8099 | HT193LB | BM21009 | NAS1578V | GB511J | Last DLA price |
|---|---|---|---|---|---|---|
| 5305-00-061-6467 | HT8099-3-1 | HT193LB3-1 | GB511J3-1 | |||
| 5305-01-042-4439 | HT8099-3-18 | HT193LB3-18 | BM21009-3-18 | NAS1578V318 | GB511J3-18 | |
| 5305-01-043-5735 | HT8099-4-20 | HT193LB4-20 | BM21009-4-20 | GB511J4-20 |
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 5305 Screws. Issuer names are SpecLok's reading of the filing CAGE code; distributors are not named. Compiled 2026-10-02.
Reference only: the controlling drawing, its process spec and the manufacturer's installation instructions govern. How to use these answers
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