Cross reference · MS (US military standards) · Setscrew
MS51981 cross referenceFFS200
MS51981 is a setscrew series on 43 government stock numbers. Its closest equivalents are FFS200. Each one is labeled with how strong the evidence is.
- Issued by MS
- Item Setscrew
- Stock numbers 43
- Equivalents 11
- DLA paid $0.78 to $250.00
Equivalents in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
1 more on one stock number each: G205794
- G205794Stanley Engineered FasteningCatalog only, needs approvalon 1 of 43 stock numbers
Standards
- FFS200Federal specificationsCatalog only, needs approvalon 15 of 43 stock numbers, 2 sizes
- NASM51981NASCatalog only, needs approvalon 2 of 43 stock numbers, 3 sizes
- FFS103TYPE3STYLEFederal specificationsCatalog only, needs approvalon 2 of 43 stock numbers
7 more on one stock number each: NASM51963, AN565D256H, AN565D2H, AN565F6H, AN56D2H, FFS200B, FFS210
- NASM51963NASCatalog only, needs approvalon 1 of 43 stock numbers
- AN565D256HANCatalog only, needs approvalon 1 of 43 stock numbers
- AN565D2HANCatalog only, needs approvalon 1 of 43 stock numbers
- AN565F6HANCatalog only, needs approvalon 1 of 43 stock numbers
- AN56D2HANCatalog only, needs approvalon 1 of 43 stock numbers
- FFS200BFederal specificationsCatalog only, needs approvalon 1 of 43 stock numbers
- FFS210Federal specificationsCatalog only, needs approvalon 1 of 43 stock numbers
Plus 38 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).
Get quotes for MS51981
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
SpecLok has no catalog family for MS51981. Tooling for the equivalents:
None of the equivalents is in the SpecLok catalog yet.
What the government paid
DLA awards on 9 of 43 stock numbers, 24 awards from 2023-02-16 to 2025-10-23.
Latest award per stock number: $0.78 to $250.00 each.
DLA production lead time: 11 to 208 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 | MS51981 | FFS200 | Last DLA price |
|---|---|---|---|
| 5305-00-717-6955 | MS51981-1 | ||
| 5305-00-716-7836 | MS51981-2 | $0.98 2025-07 | |
| 5305-00-716-7833 | MS51981-8 | ||
| 5305-00-716-7815 | MS51981-9 | $0.78 2025-10 | |
| 5305-00-716-7786 | MS51981-10 | ||
| 5305-00-716-7733 | MS51981-16 | ||
| 5305-00-716-7729 | MS51981-17 | $1.04 2024-01 | |
| 5305-00-716-7725 | MS51981-18 | ||
| 5305-00-715-1360 | MS51981-19 | ||
| 5305-00-715-1345 | MS51981-20 | FFS200 | |
| 5305-00-719-5381 | MS51981-20 | ||
| 5305-00-715-1251 | MS51981-26 | ||
| 5305-00-715-1248 | MS51981-27 | FFS200 | |
| 5305-00-715-1237 | MS51981-28 | ||
| 5305-00-715-1223 | MS51981-29 | FFS200 |
Show 28 more sizes
| NSN | MS51981 | FFS200 | Last DLA price |
|---|---|---|---|
| 5305-00-715-1222 | MS51981-30 | FFS200 | |
| 5305-00-715-1221 | MS51981-36 | $1.13 2024-01 | |
| 5305-00-715-1220 | MS51981-37 | FFS200 | |
| 5305-00-723-9396 | MS51981-39 | FFS200 | |
| 5305-00-715-1216 | MS51981-40 | FFS200 | |
| 5305-00-715-1215 | MS51981-46 | FFS200 | |
| 5305-00-715-1214 | MS51981-47 | ||
| 5305-00-715-1213 | MS51981-48 | FFS200 | |
| 5305-00-715-1212 | MS51981-49 | ||
| 5305-00-715-1211 | MS51981-50 | ||
| 5305-00-715-1210 | MS51981-51 | ||
| 5305-00-715-1209 | MS51981-52 | ||
| 5305-00-715-1207 | MS51981-59 | ||
| 5305-00-715-1206 | MS51981-60 | FFS200 | |
| 5305-00-715-1205 | MS51981-61 | ||
| 5305-00-715-1203 | MS51981-63 | ||
| 5305-00-715-1202 | MS51981-64 | ||
| 5305-00-715-1201 | MS51981-70 | ||
| 5305-00-715-1200 | MS51981-71 | $6.35 2024-09 | |
| 5305-00-715-1199 | MS51981-72 | FFS200 | |
| 5305-00-702-4532 | MS51981-74 | FFS200 | $15.58 2024-10 |
| 5305-00-715-1194 | MS51981-80 | FFS200 | |
| 5305-00-715-1193 | MS51981-81 | ||
| 5305-00-715-1192 | MS51981-82 | $250.00 2025-07 | |
| 5305-00-715-1191 | MS51981-83 | $10.73 2024-11 | |
| 5305-01-192-5738 | MS51981-49L | FF-S-200 | |
| 5305-01-195-7931 | MS51981-74L | FF-S-200 | $41.13 2024-07 |
| 5305-01-278-4011 | MS51981-9L |
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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