Cross reference · NAS (Aerospace Industries Association) · Close tolerance screw
NAS1581A5H cross reference
NAS1581A5H is a close tolerance screw series on 9 government stock numbers. Each one is labeled with how strong the evidence is.
- Issued by NAS
- Item Close tolerance screw
- Stock numbers 9
- Equivalents 5
Equivalents in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
4 more on one stock number each: A147, BM19025, HT239PB, HT8043
- A147HuckCatalog only, needs approvalon 1 of 9 stock numbers
- BM19025HuckCatalog only, needs approvalon 1 of 9 stock numbers
- HT239PBHi-ShearCatalog only, needs approvalon 1 of 9 stock numbers
- HT8043Howmet Fastening SystemsCatalog only, needs approvalon 1 of 9 stock numbers
Airframer and OEM drawings
1 more on one stock number each: GB510L
- GB510LNorthrop GrummanCatalog only, needs approvalon 1 of 9 stock numbers
Plus 3 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).
Get quotes for NAS1581A5H
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
SpecLok has no catalog family for NAS1581A5H. Tooling for the equivalents:
None of the equivalents is in the SpecLok catalog yet.
Sizes by maker
| NSN | NAS1581A5H | A147 | HT239PB | HT8043 | GB510L | Last DLA price |
|---|---|---|---|---|---|---|
| 5305-01-113-4020 | NAS1581A5H6 | |||||
| 5305-01-112-8688 | NAS1581A5H7 | |||||
| 5305-00-288-2457 | NAS1581A5H9 | A147-5-11 | HT239PB-5-11 | HT8043-5-11 | GB510L5-11 | |
| 5305-01-097-7921 | NAS1581A5H10 | |||||
| 5305-01-217-2184 | NAS1581A5H11 | |||||
| 5305-01-260-8941 | NAS1581A5H12 | |||||
| 5305-01-112-6095 | NAS1581A5H18 | |||||
| 5305-01-199-4356 | NAS1581A5H29 | |||||
| 5305-01-197-9426 | NAS1581A5H34 |
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.
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