Cross reference · NAS (Aerospace Industries Association) · Retaining ring
NAS51 cross referenceMS16624
NAS51 is a retaining ring series on 53 government stock numbers. Its closest equivalents are MS16624. Each one is labeled with how strong the evidence is.
- Issued by NAS
- Item Retaining ring
- Stock numbers 53
- Equivalents 21
- DLA paid $0.10 to $11.98
Equivalents in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
3 more on one stock number each: G650112, HC848Y, SH18BC
- G650112TruarcCatalog only, needs approvalon 1 of 53 stock numbers
- HC848YHuckCatalog only, needs approvalon 1 of 53 stock numbers
- SH18BCRotor ClipCatalog only, needs approvalon 1 of 53 stock numbers
Standards
- MS16624MSCatalog only, needs approvalon 36 of 53 stock numbers, 44 sizes
5 more on one stock number each: MS9012, MS9013, M142510, R271NAA0018NN643NNPF, R271NAA0212NN056NNPF
- MS9012MSCatalog only, needs approvalon 1 of 53 stock numbers
- MS9013MSCatalog only, needs approvalon 1 of 53 stock numbers
- M142510MSCatalog only, needs approvalon 1 of 53 stock numbers
- R271NAA0018NN643NNPFASMECatalog only, needs approvalon 1 of 53 stock numbers
- R271NAA0212NN056NNPFASMECatalog only, needs approvalon 1 of 53 stock numbers
Airframer and OEM drawings
- 12Z64PCUS NavyCatalog only, needs approvalon 3 of 53 stock numbers, 3 sizes
- 643AGECatalog only, needs approvalon 2 of 53 stock numbers, 2 sizes
10 more on one stock number each: 1005620PCNAS, 1005620REVBPCNAS, 242B, 287122PC, 362M0020P, 58A122B, 709051PC, 7550G, 7550GX, 7W61027FE
- 1005620PCNASHoneywellCatalog only, needs approvalon 1 of 53 stock numbers
- 1005620REVBPCNASHoneywellCatalog only, needs approvalon 1 of 53 stock numbers
- 242BGeneral DynamicsCatalog only, needs approvalon 1 of 53 stock numbers
- 287122PCUS NavyCatalog only, needs approvalon 1 of 53 stock numbers
- 362M0020PRTXCatalog only, needs approvalon 1 of 53 stock numbers
- 58A122BUS NavyCatalog only, needs approvalon 1 of 53 stock numbers
- 709051PCUS NavyCatalog only, needs approvalon 1 of 53 stock numbers
- 7550GOshkoshCatalog only, needs approvalon 1 of 53 stock numbers
- 7550GXOshkoshCatalog only, needs approvalon 1 of 53 stock numbers
- 7W61027FELockheed MartinCatalog only, needs approvalon 1 of 53 stock numbers
Plus 213 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).
Get quotes for NAS51
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
SpecLok has no catalog family for NAS51. Tooling for the equivalents:
None of the equivalents is in the SpecLok catalog yet.
What the government paid
DLA awards on 12 of 53 stock numbers, 62 awards from 2023-01-09 to 2026-08-26.
Latest award per stock number: $0.10 to $11.98 each.
DLA production lead time: 52 to 300 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 | NAS51 | MS16624 | Last DLA price |
|---|---|---|---|
| 5325-00-804-6895 | NAS51-12 | MS16624-5012-1 | |
| 5325-00-663-0335 | NAS51-15 | ||
| 5325-00-432-3584 | NAS51-18 | MS16624-5018-1 | $0.11 2024-07 |
| 5325-00-200-8845 | NAS51-27 | MS16624-5027 | |
| 5325-00-803-7313 | NAS51-31 | MS16624-1031 | |
| 5325-00-514-1462 | NAS51-35 | ||
| 5325-00-800-7865 | NAS51-37 | MS16624-3037 | |
| 5325-00-051-4150 | NAS51-43 | ||
| 5325-00-598-0923 | NAS51-50 | ||
| 5325-00-584-6557 | NAS51-55 | MS16624-1055 | |
| 5325-00-803-7306 | NAS51-56 | MS16624-1056 | $0.15 2023-03 |
| 5325-00-803-7305 | NAS51-62 | MS16624-1062 | |
| 5325-00-282-1830 | NAS51-66 | MS16624-1066 | $0.10 2026-05 |
| 5325-00-664-6806 | NAS51-68 | MS16624-68 | |
| 5325-00-256-2840 | NAS51-75 |
Show 38 more sizes
| NSN | NAS51 | MS16624 | Last DLA price |
|---|---|---|---|
| 5325-00-598-1958 | NAS51-78 | ||
| 5325-00-197-6270 | NAS51-81 | ||
| 5325-00-200-3506 | NAS51-87 | ||
| 5325-00-804-2026 | NAS51-98 | MS16624-1098 | $0.63 2025-06 |
| 5325-00-530-7968 | NAS51-100 | MS16624-1100 | $0.86 2025-12 |
| 5325-00-598-2088 | NAS51-100 | ||
| 5325-00-282-1829 | NAS51-102 | ||
| 5325-00-803-7319 | NAS51-112 | MS16624-1112 | |
| 5325-00-598-1420 | NAS51-118 | ||
| 5325-00-281-6623 | NAS51-125 | MS16624-125 | |
| 5325-00-598-1012 | NAS51-131 | ||
| 5325-00-634-7991 | NAS51-150 | ||
| 5325-00-803-7304 | NAS51-156 | MS16624-1156 | |
| 5325-00-818-8087 | NAS51-162 | MS16624-1162 | $3.26 2023-01 |
| 5325-00-721-6476 | NAS51-175 | MS16624-1175 | $0.72 2026-08 |
| 5325-00-802-9830 | NAS51-187 | MS16624-1187 | $3.59 2025-12 |
| 5325-00-252-4758 | NAS51-200 | MS16624-1200 | |
| 5325-00-252-4756 | NAS51-206 | MS16624-1206 | |
| 5325-00-663-1246 | NAS51-212 | MS16624-1212 | |
| 5325-00-282-1831 | NAS51-215 | MS16624-1215 | |
| 5325-00-252-4770 | NAS51-225 | MS16624-1225 | |
| 5325-00-282-0726 | NAS51-237 | ||
| 5325-00-663-2215 | NAS51-255 | MS16624-1255 | $11.98 2025-03 |
| 5325-00-200-8772 | NAS51-262 | MS16624-1262 | $6.19 2025-04 |
| 5325-00-200-7234 | NAS51-275 | MS16624-1275 | |
| 5325-00-514-3038 | NAS51-306 | MS16624-1306 | |
| 5325-00-200-6684 | NAS51-315 | MS16624-1315 | $3.56 2025-11 |
| 5325-00-205-4733 | NAS51-625 | MS16624-1625 | |
| 5325-00-514-0362 | NAS51-1196 | MS16624-1196 | |
| 5325-00-514-1281 | NAS51-118P | MS16624-3118 | |
| 5325-00-200-2637 | NAS51-12N | MS16624-5012 | |
| 5325-00-598-0805 | NAS51-150N | ||
| 5325-00-205-4263 | NAS51-15N | ||
| 5325-00-903-7567 | NAS51-18N | MS16624-5018 | |
| 5325-00-197-6266 | NAS51-21N | ||
| 5325-00-720-8064 | NAS51-25N | MS16624-1025 | $0.15 2026-08 |
| 5325-00-263-5869 | NAS51-37N | MS16624-37 | |
| 5325-00-806-1686 | NAS51-59N | MS16624-59 |
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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