Cross reference · Northrop Grumman · Split washer
GW501A cross referenceHowmet 2600SW, Boeing BACW10X, Daher Z00N, MBDA 0117565Q
GW501A is a Northrop split washer series on 3 government stock numbers. Its closest equivalents are Howmet 2600SW, Boeing BACW10X, Daher Z00N, MBDA 0117565Q. Each one is labeled with how strong the evidence is.
- Issued by Northrop Grumman
- Item Split washer
- Stock numbers 3
- Equivalents 14
- DLA paid $0.26 to $0.33
Equivalents in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
- 2600SWHowmet Fastening SystemsCatalog only, needs approvalon 2 of 3 stock numbers, 2 sizes
1 more on one stock number each: 2600LW
- 2600LWHowmet Fastening SystemsCatalog only, needs approvalon 1 of 3 stock numbers
Airframer and OEM drawings
- BACW10XBoeingCatalog only, needs approvalon 2 of 3 stock numbers, 2 sizes
- Z00NDaherCatalog only, needs approvalon 2 of 3 stock numbers, 2 sizes
10 more on one stock number each: 0117565Q, 1029AS, 126AS, 201A568P, 373M0023P, 373MS002P, 373MS023P, 58A5A, 7013756P, 7128372P
- 0117565QMBDACatalog only, needs approvalon 1 of 3 stock numbers
- 1029ASUS NavyCatalog only, needs approvalon 1 of 3 stock numbers
- 126ASUS NavyCatalog only, needs approvalon 1 of 3 stock numbers
- 201A568PBAE SystemsCatalog only, needs approvalon 1 of 3 stock numbers
- 373M0023PRTXCatalog only, needs approvalon 1 of 3 stock numbers
- 373MS002PRTXCatalog only, needs approvalon 1 of 3 stock numbers
- 373MS023PRTXCatalog only, needs approvalon 1 of 3 stock numbers
- 58A5AUS NavyCatalog only, needs approvalon 1 of 3 stock numbers
- 7013756PGECatalog only, needs approvalon 1 of 3 stock numbers
- 7128372PLockheed MartinCatalog only, needs approvalon 1 of 3 stock numbers
Plus 81 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).
Get quotes for GW501A
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
SpecLok has no catalog family for GW501A. Tooling for the equivalents:
None of the equivalents is in the SpecLok catalog yet.
What the government paid
DLA awards on 2 of 3 stock numbers, 24 awards from 2023-05-19 to 2026-04-28.
Latest award per stock number: $0.26 to $0.33 each.
DLA production lead time: 120 to 266 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
| NSN | GW501A | 2600SW | BACW10X | Z00N | 0117565Q | 1029AS | Last DLA price |
|---|---|---|---|---|---|---|---|
| 5310-00-337-8329 | GW501A-LW | BACW10X4 | Z00.N7743133816 | 0117565Q00 | 1029AS262 | $0.33 2026-04 | |
| 5310-00-243-2259 | GW501A-SW | 2600SW | BACW10X2 | $0.26 2026-04 | |||
| 5310-00-639-7435 | GW501A-SW2 | 2600SW2 | Z00.N7743133822 |
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 5310 Nuts and washers. Issuer names are SpecLok's reading of the filing CAGE code; distributors are not named. Compiled 2026-10-02.
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