Cross reference · NAS (Aerospace Industries Association) · Retaining ring
NAS50 cross referenceTruarc N5000
NAS50 is a retaining ring series on 51 government stock numbers. Its closest equivalents are Truarc N5000. Each one is labeled with how strong the evidence is.
- Issued by NAS
- Item Retaining ring
- Stock numbers 51
- Equivalents 23
- DLA paid $2.46 to $21.54
Equivalents in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
- N5000TruarcCatalog only, needs approvalon 14 of 51 stock numbers, 24 sizes
- N1300TruarcCatalog only, needs approvalon 9 of 51 stock numbers, 11 sizes
6 more on one stock number each: 22321R, 3000X, 3000X206CB, G205060PT, HO50STPD, X268
- 22321RTruarcCatalog only, needs approvalon 1 of 51 stock numbers
- 3000XTruarcCatalog only, needs approvalon 1 of 51 stock numbers
- 3000X206CBTruarcCatalog only, needs approvalon 1 of 51 stock numbers
- G205060PTTruarcCatalog only, needs approvalon 1 of 51 stock numbers
- HO50STPDRotor ClipCatalog only, needs approvalon 1 of 51 stock numbers
- X268TruarcCatalog only, needs approvalon 1 of 51 stock numbers
Standards
- MS16625MSCatalog only, needs approvalon 11 of 51 stock numbers, 16 sizes
5 more on one stock number each: MS4663, ASMEB18241, R271NAB0087NN056NNPF, R271NAB0131NN056NNPF, R271NAB0312NN056NNPF
- MS4663MSCatalog only, needs approvalon 1 of 51 stock numbers
- ASMEB18241ASMECatalog only, needs approvalon 1 of 51 stock numbers
- R271NAB0087NN056NNPFASMECatalog only, needs approvalon 1 of 51 stock numbers
- R271NAB0131NN056NNPFASMECatalog only, needs approvalon 1 of 51 stock numbers
- R271NAB0312NN056NNPFASMECatalog only, needs approvalon 1 of 51 stock numbers
Airframer and OEM drawings
- S2189Northrop GrummanCatalog only, needs approvalon 2 of 51 stock numbers, 2 sizes
8 more on one stock number each: 362MR007P, 39116A, 547820REVAPCNAS, 547820REVBPCNAS, 554454PC, 907684K, A8898642, CL21A
- 362MR007PRTXCatalog only, needs approvalon 1 of 51 stock numbers
- 39116AUS NavyCatalog only, needs approvalon 1 of 51 stock numbers
- 547820REVAPCNASHoneywellCatalog only, needs approvalon 1 of 51 stock numbers
- 547820REVBPCNASHoneywellCatalog only, needs approvalon 1 of 51 stock numbers
- 554454PCUS NavyCatalog only, needs approvalon 1 of 51 stock numbers
- 907684KHoneywellCatalog only, needs approvalon 1 of 51 stock numbers
- A8898642Lockheed MartinCatalog only, needs approvalon 1 of 51 stock numbers
- CL21ANorthrop GrummanCatalog only, needs approvalon 1 of 51 stock numbers
Plus 99 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).
Get quotes for NAS50
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
SpecLok has no catalog family for NAS50. Tooling for the equivalents:
None of the equivalents is in the SpecLok catalog yet.
What the government paid
DLA awards on 3 of 51 stock numbers, 10 awards from 2023-01-20 to 2026-08-27.
Latest award per stock number: $2.46 to $21.54 each.
DLA production lead time: 43 to 200 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 | NAS50 | N5000 | MS16625 | Last DLA price |
|---|---|---|---|---|
| 5325-00-530-6775 | NAS50-37 | |||
| 5325-00-598-1065 | NAS50-37 | |||
| 5325-00-530-6787 | NAS50-43 | |||
| 5325-00-803-8516 | NAS50-50 | N5000-50 | MS16625-50 | |
| 5325-00-252-4718 | NAS50-56 | |||
| 5325-00-252-4713 | NAS50-62 | |||
| 5325-00-807-7968 | NAS50-68 | N5000-X75-S-PP | MS16625-1068 | |
| 5325-00-252-4720 | NAS50-75 | |||
| 5325-00-530-6778 | NAS50-81 | |||
| 5325-00-298-6572 | NAS50-87 | N5000-87 | ||
| 5325-00-804-9739 | NAS50-87 | N5000-87MF | MS16625-1087 | |
| 5325-00-680-8990 | NAS50-93 | |||
| 5325-00-807-2636 | NAS50-100 | N5000-X100-S-MD | MS16625-1100 | |
| 5325-00-252-4739 | NAS50-106 | |||
| 5325-01-339-4699 | NAS50-109 |
Show 36 more sizes
| NSN | NAS50 | N5000 | MS16625 | Last DLA price |
|---|---|---|---|---|
| 5325-00-205-4234 | NAS50-112 | |||
| 5325-00-530-6777 | NAS50-118 | |||
| 5325-00-576-8493 | NAS50-125 | |||
| 5325-00-804-3892 | NAS50-131 | N5000-131-S-MD | MS16625-1131 | |
| 5325-00-252-4735 | NAS50-137 | N5000-137MF | ||
| 5325-00-619-6507 | NAS50-137 | |||
| 5325-00-256-2843 | NAS50-143 | |||
| 5325-00-052-4264 | NAS50-150 | |||
| 5325-00-205-4236 | NAS50-156 | |||
| 5325-00-514-1464 | NAS50-168 | |||
| 5325-00-514-1465 | NAS50-185 | |||
| 5325-01-646-8521 | NAS50-187 | |||
| 5325-00-252-4764 | NAS50-200 | |||
| 5325-00-530-6784 | NAS50-206 | N5000-206MF | ||
| 5325-00-804-9738 | NAS50-206 | N5000-206MD | MS16625-1206 | |
| 5325-00-598-1422 | NAS50-212 | |||
| 5325-00-514-1459 | NAS50-218 | |||
| 5325-00-514-1461 | NAS50-225 | |||
| 5325-00-514-1451 | NAS50-231 | |||
| 5325-00-514-1452 | NAS50-237 | |||
| 5325-00-514-2839 | NAS50-244 | |||
| 5325-00-804-2771 | NAS50-250 | N5000-250MF | MS16625-1250 | $21.54 2026-08 |
| 5325-00-804-2776 | NAS50-262 | N5000-X268-S-MD | MS16625-1262 | |
| 5325-00-804-2778 | NAS50-268 | N5000-268MF | MS16625-1268 | $2.46 2023-12 |
| 5325-00-514-1454 | NAS50-275 | N5000-275MF | ||
| 5325-00-515-1142 | NAS50-300 | |||
| 5325-00-514-1449 | NAS50-306 | |||
| 5325-00-281-3586 | NAS50-312 | MS16625-1312 | $6.50 2023-04 | |
| 5325-00-263-5921 | NAS50-137N | |||
| 5325-00-285-2109 | NAS50-175N | |||
| 5325-00-804-7688 | NAS50-283N | N5000-283 | MS16625-283 | |
| 5325-00-200-2540 | NAS50-43N | |||
| 5325-00-598-0780 | NAS50-50P | |||
| 5325-00-514-1302 | NAS50-56N | |||
| 5325-00-530-6788 | NAS50-68N | |||
| 5325-00-263-5895 | NAS50-75N |
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 5325 Fastening devices. Issuer names are SpecLok's reading of the filing CAGE code; distributors are not named. Compiled 2026-10-02.
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